My advice is to build increasingly larger boxes around the boxes around the compressor until it is completely silent 🙃
@ukp42
2 жыл бұрын
Like a Russian Doll? Keep building until the final box is the size of a High Rise building!
@elofos0815
2 жыл бұрын
or bring it far away from u and feed our air with 1-2" plastic pipes. 10-15m, 2 walls is often much more then this box evere can make
@erict3728
2 жыл бұрын
I worked in a shop with 2 huge air compressors. Never heard them, they were in a fenced enclosure outside.
@dannyo3317
2 жыл бұрын
That is a great solution. I have followed similar thinking with making gutter guards. My gutter guards are perfect and allow NO junk to get through. Unfortunately, water also does not pass through!
@digi3218
2 жыл бұрын
@@dannyo3317 Reminds me of the gutter guards where the water is supposed to basically go over the gutter and follow the curve back into it while all the junk blows off. What a gimmick
@simondrinkall2933
Жыл бұрын
You could also remove the wheels and use rubber mounts, this significantly reduced the noise from my compressor before I built an enclosure for it. Better still I moved it outside.
@kihestad
8 ай бұрын
You are absolutely correct! It's my first improvement to-do, find some soft rubber to isolate the vibrations going into the box / floor.
@MaZEEZaM
2 ай бұрын
@@kihestad cheap and chearful option is washing machine feet. Expensive but more effective is acoustic isolation feet. (iso-feet)
@KenFullman
12 күн бұрын
@@kihestad And don't forget to put a floor on the box. Idealy something with some mass to it, such as a concrete paving slab, then put the isolation feet under that slab. It will make the world of difference.
@lexer_
2 жыл бұрын
Something to also consider is that, while the reduction in noise in dB is not sufficient, the sound characteristics are way less "sharp" with the insulating case. I don't know how much of a difference it really makes as I can only compare microphone recordings but even without a significant reduction in dB I would probably still prefer the case just because the sound is not as shouty and more basey.
@kihestad
2 жыл бұрын
That is a very good observation, not many has commented on it 👍Originally these compressors have a high pitched and hard noise that really hurt in your ear. It crashes totally with frequencies in use when we speak. With the box it is just a low rumbling soft noise left, much more pleasing to the ear. Like thunder far away. Even the noise is there you don't need to rise your voice to talk over it.
@MrVukojeB
2 жыл бұрын
Absolutely! The sound insulation mainly cuts high frequencies. Bravo!
@nubreed13
Жыл бұрын
At one of my old jobs they built insulated panels for the dust collectors. The difference was night and day. Before the panels were made you had to shout at the person next to you. Afterwards you could speak normally right next to the collectors.
@davidrutledge3240
Жыл бұрын
@@MrVukojeB bingo. The most effective thing to attenuate low frequencies is adding mass.
@RandoManFPV
Жыл бұрын
Heck yea port that baby and tune it to 32hz that's what I'm about 🤣🤣🤙
@jamesplotkin4674
2 жыл бұрын
Very important that you provide a way to drain the water from the tank. One way is to plumb a line directly to the drain fitting, then to a valve, so you can leave the compressor in it's comfy home. Don't forget to service the oil.
@kihestad
2 жыл бұрын
These compressors are without oil, but draining the tank from time to time is needed. We have a quite dry environment here where I live, and since the compressor is stationary in my garage it gets quite dry air all the time. For now I have to open the hatch and take it half way out of the box to drain it - have not done it in a couple of months, probably due time 😯. Will consider adding a line to have drain plug on the outside, would have made it much more convenient. Thanks for your tip! 👍
@vizioasdf
2 жыл бұрын
@@kihestad be sure to read your instruction manual in regards to how often you should be draining the water from the tanks. My Ridgid dual tank says every 4 hours of use.
@kihestad
2 жыл бұрын
@@vizioasdf Hi, the user manual says 'daily, after work has been done'. I have to admit that I don't drain it daily. Most days I don't use it at all, and some days I just start it once and then turn it off to do a small job. The humidity is what is causing water to get into the tank. I know it can be quite humid some places in the world, while it's a rather dry climate here where I live (although it's raining a lot). I have just drained the compressor 'now and then’ up until now, but I'll start doing it a bit more frequently 😇
@maxuabo
2 жыл бұрын
See the trick here is to build a separate insulated room with a filter air dryer/dehumidifier and auto drain valve for the tank so there’s room to walk inside, close the door and service the oil and rubber motor pully for those long life compressors
@maxuabo
2 жыл бұрын
@Robert Swaine I’ve actually seen someone do the in ground concrete part haha but if you’re going to go that far then I guess you might as well add an oil burn furnace to put that spent oil to good use
@alexplorer
2 жыл бұрын
Short version to save a lot of work: Instead of building an enclosure for the entire compressor, much of the noise comes from the intake hole since that's right up against the piston. You can access that and add a muffler or make your own. There are loads of videos showing different approaches, but my low-tech method was to use a hole saw to drill out the grill to access the hole. The intake hole is threaded to add an air filter, so I matched the size (Mine was 3/8"; not sure if that's standard) and added a 4" long brass nipple that I could then just put about vinyl tubing over. I ran that out about 18". The tubing deadened the sound considerably, especially the high-frequency clatter that's especially irritating. I experimented with a homemade muffler on the end of the tubing, but the tubing alone reduced the noise by quite a bit. (Note: I'm using a 6 gal Harbor Freight compressor, so it was pretty noisy to start with. Better now, though not "quiet." While I wouldn't use it indoors, I'm sure I'm not annoying as many neighbors since it is much quieter.)
@kihestad
2 жыл бұрын
That sounds like a smart solution! 👍 I did consider it, but I just did not know exactly how to build it. I found different examples on KZitem, but none of them made the compressor as quiet as I would like. Some used even a large exhaust muffler from a car, but I still thought it was loud. Did you measure the sound level before / after?
@SGOI_AUS
2 жыл бұрын
hey smart lamb Chop short version to save a lot of work is not have your nose pointing to the sky with your butler next to you , how about this response people like this man put a lot of effort time and money into making these videos i had no problem watching his 19 min video had seen your reply well the first line of it and i was struggling to want to read any further beause its people like you this world dont need making the im so good look what i did comment we already know this no one is better than you your red ccar goes faster than my blue car...... but for the rest of us that really have no issues and appreciate the work these FILTUBERZ make we appreciate and encourage them to make more i want to see an interesting how ever long in minutes video as long as it is informative ill watch all day... What i don't want to wanna watch is some Richard Cranium making a video and saying "OK NOISE FROM HERE, CUT AND PASTE HERE PROBLEM SOLVED" i don't wanna watch one minute not learning id rather watch 19 and learn a lot. all these people, hats off to them and there long ass 19 min video because he has informed me and now i don't gotta spend hundreds of dollars and a weekend to find out i go no difference in sound DB's. thats where the appreciation is and if i could do a video half as good as this man id be over the moon, LONG STORY SHORT....... APPRECIATE .......DONT HATE........POINT YOUR NOSE DOWN AND FIRE YOUR BUTLER..... NOW TO MY NEXT 19 MIN VIDEO
@zod-engineering-welding
2 жыл бұрын
@@kihestad Alexplorer hit one key element. Look up images for Eaton / Polar air compressors so you can see their whisper box design. I have a 10HP, 80 gallon compressor, and the whisper box silences the air intake a very good amount. It is basically a large box mounted to the side of the compressor with rubber hoses that go from the compressor head to the top of the whisper box. with just 2 or 3 labyrinth turns, and it is packed with a low-density fiberglass type mesh, similar to what MERV 4 Air conditioning filters use, and the bottom (floor) of the box has three ~15mm holes where the air is drawn upwards to the pump. That being said mine is outdoors about 30meters from the garage. The key is to have the air flow THROUGH the sound dampening media, not surround it! This disrupts the noise a lot more. That being said, nothing will dampen the noise the way we envision it will in our heads than simply very thick insulation material. This is even more critical with typical oil-less compressors that are obviously very noisy. I built a sound-dampening enclosure for a 7 kW Troy-Bilt generator two years ago during pandemic when everything was shut down. What used to be an unbearably annoying loud generator now became a barely noticed 62 dB very low-frequency muffled sound that you can easily talk over even when standing right next to it. I used 12mm board, and Roxul sound-dampening home insulation that was 3"/76mm thick. The sides/top/bottom of the enclosure were 'sandwiched' walls where I stuffed the 3" thick Roxul down to about 2" compressed, so the walls themselves were 3" thick each! The front and back were bare sheets in a labyrinth style like yours. The air intake on the front was facing down towards the ground and was loosely stuff with Acousta-Stuff speaker insulation, so the air easily flowed through it, yet any sound that escaped that way was still muffled. The exhaust end was also a labyrinth style but with no insulation, even though Roxul is rated to be fire-resistant up to something like 2,000°F I didn't take the time to make proper flow channels, since Roxul does not allow airflow through itself (the exhaust gas also went though a large automotive muffler I welded onto the exhaust pipe). Now, The issue with this and sealing up air compressors is now heat. Oil-less air compressors will suffer piston wall/ring damage very quickly if they don't have TONS of airflow, and a 5" 120mm fan is simply not enough. For my generator box, I used a 10" blower fan that moves over 2700 m³/hr (1,600 CFM) ! Obviously it produces a lot more heat, but for a compressor to stay cool, you still do need a massive amount of airflow, something along the lines of 500 CFM (900ish m³/hr).
@kihestad
2 жыл бұрын
@@zod-engineering-welding Thanks a lot for sharing tips and your project. Our boxes seems to be somewhat similar, yours a bit bigger. It's not vere hot here where I live, even on the warmest summer days. That's one benefit living up north here in Norway, I need heat pump in my garage instead of air conditioner 😁 In hotter environments and for bigger compressors more cooling is a must 👍
@JayDee-xj9lu
2 жыл бұрын
Great idea. I made a dog hairdryer from using a vacuum cleaner motor and used a car muffler as the intake. It made it so much quieter.
@kingcosworth2643
2 жыл бұрын
A design I created when building speaker cabinets is to bond two very different density woods together to help make them acoustically dead. You can imagine if you have two bits of wood with very different resonate frequencies, when they are mechanically bonded they the two bits of wood fight each other and there is basically zero sustain at the new resonate freq. Works really well for internal braces in a cabinet.
@tuomas2789
2 жыл бұрын
so you would make the sunwoofer box braces out of a different wood or make one the walls different from each other?
@Etrehumain123
2 жыл бұрын
@@tuomas2789 i think he meant walls made by laminated panels of 2 different material. A box of wood and a second layer of mdf for example.
@jdrissel
2 жыл бұрын
A trick you can do to optimize the design of this sort of sound isolator is to use a speaker enclosure design tool. Measure the noise that you've got and look at the lowest frequency. Then use the enclosure design program to design ports that are tuned to 1/2 of the lowest frequency that your device produces. Remember to set the program to use two ports because you need a separate one for intake and exhaust. This will give you the maximum noise attenuation for the shortest port length. However in this case I suspect most of the noise is either vibrations transmitted via the floor, or is sound coming through the sides and top. Take a look at how subwoofer boxes are braced. The side with the air intake is probably fine as the vent acts as bracing, but the other side and the door probably could be improved quite a bit. Google the kraken subwoofer build to see what I mean. Also consider using some mechanical isolation such as springs or foam rubber under the compressor and pay attention to draining the tank.
@kihestad
2 жыл бұрын
Thanks a lot for the suggestions 👍 Since the box is already built, I will most likely not change the ports - but this is definitely something I will have to look into if I ever was to build a new one! I think you are right about vibrations and perhaps better insulating the non-vented sides would help. The floor has just a thin carpet on it, I might add Rockwool sound insulation there as well and replace the wheels on the compressor with rubber fees.
@jlucasound
2 жыл бұрын
Thanks, James! Very in depth info!
@crabmansteve6844
2 жыл бұрын
@@kihestad Rockwool will help immensely, I've done that myself. Specifically a thick layer of rockwool in the bottom of the enclosure with a 25mm rubber isolating pad on top of it.
@BillLambert
2 жыл бұрын
When I saw the "maze" I immediately thought of a speaker transmission line enclosure, with the compressor as the "speaker". The same acoustic science applies here.
@FATTONYKAUAI
2 жыл бұрын
It’s called a T line. Enclosure
@jeremybanks9007
2 жыл бұрын
Anything to eliminate your neighbours complaining or even knowing you've got it on is priceless plus it's good to have a quiet workshop
@histufly
8 ай бұрын
The parallel surfaces allow more reflection in the baffles. It would be better to use shapes that break up the sound reflection such as cones or pyramids.
@peterpeterson9903
2 жыл бұрын
If you want a quiet compressor in your shop, get a big one, the bigger belt driven units are much quieter on account of a bigger, slower piston, the little ones knock their pan in high revving a small piston hence the noise.
@mtsilvagt
2 жыл бұрын
You know your stuff ,peter ✌️
@kihestad
2 жыл бұрын
Yes, you are absolutely correct. If you can afford it and have space for it! I am not really using it enough to justify either the cost or occupying that much space for it. It's always a compromise 😏
@monad_tcp
2 жыл бұрын
the bigger it goes, the quieter, less RPM, the frequency is more on the bass, in terms of decibels, doesn't do much, but decibels don't measure loudness, they measure sound pressure. lower frequencies are much more tolerable to the human ear, even with more sound pressure.
@aaronsbarker
2 жыл бұрын
Rotary Screw Air Compressors
@carpediemarts705
2 жыл бұрын
@@aaronsbarker please buy me one!
@repairfreak
2 жыл бұрын
Hello, props to your design & craftsmanship, I can tell you have much skill working with wood and tools. As you mentioned quiet compressors are not cheap, this is true. I worked at two companies that built industrial compressors, Sullair and Sullivan Palatek here in the U.S.A.. My job was to assemble and wire up these machines. These machines ranged from aporox 5 hp all the way up to 125 hp. However the big difference was these were screw compressors. Instead of using pistons, these compressors use two screws “male & female” that mate with each other like two worm gears side by side. These screws spin at high speed in a special synthetic oil bath, the oil is then separated out of the compressed air using an oil separator tank. This separator is basically like a big air filter that removes the leftover oil from the air. The advantage of screw compressors is they run much quieter, and produce continuous air flow rather than in puffs. Their frequency of sound is much higher, but generally still considerably quieter than then piston type machines. However these screw type machines start of at around approx $4000 for a 5 hp and a 100 hp approx 30-$40K depending on options. All refrigerators and for home and commercial cooling compressors are also of this screw design for compressing of the refrigerant. Thanks for your video sir, I found it interesting.😎👍
@kihestad
2 жыл бұрын
Thanks a lot for your comment, it was very interesting 👍😊 I have heard about screw compressors and knew they where expensive, but I did not really know how they worked. This was very fun to read, and now I am a bit wiser 😊Learing every day! Thanks!!!
@repairfreak
2 жыл бұрын
@@kihestad Your welcome my friend. I can appreciate you for taking the time to design your enclosure, and document the process. I also have always found compressors annoyingly loud. My father and I would often jump in surprise whenever his 5hp craftsman compressor would turn on automatically in his garage. Just so ridiculously loud, lol. Best wishes 😎👍
@tsstsstsstsstsstss
2 жыл бұрын
The sound level doubles for every 3 dB, so the new one is WAY more quiet than the old one. Also, the LwA=98 dB marked on the side of the compressor is decibels sound power level, not sound pressure level as you are measuring with your sound level meter. But the final conclusion in your video is spot on! I work with noise in industry and offshore. The first rule is: Buy silent! It'll always save money and give a better result.
@cjr1881
2 жыл бұрын
That is a myth
@cjr1881
2 жыл бұрын
It is about 10 decibels to achieve double the volume. That 3 decibel garbage is energy which is meaningless.
@kihestad
2 жыл бұрын
I have understood now that I have much to learn when it comes to the decibel scale / measurements. 😳 Thanks for your comment 😊
@tsstsstsstsstsstss
2 жыл бұрын
@@cjr1881 😄 Well, whether you think it's meaningless garbage or not, it's math and how the physics of sound work. For example: 10*log(4) = 6 dB while 10*log(8) = 9 dB. Doubling from 4 to 8 increases the dB level by 3. Our ears may be said to percieve a 10 dB increase as a doubling because how our ears and brain works, but what Hestad is measuring is a doubling of sound pressure for every 3 dB increase. That's simply not debatable.
@trevorlambert4226
Жыл бұрын
@@tsstsstsstsstsstss Perceived noise level is ultimately what matters, and from that standpoint you're incorrect.
@dazaspc
2 жыл бұрын
In my experience there are 3 things you need to worry about to quieten down an air compressor. 1~ Air intake. Some machines have a very crude strainer for the air intake. This will allow a lot of valve noise out. My standard solution is to remove and modify the air intake to use an automotive paper element air filter. if you use a big enough element it will completely shut up the intake noise and with the added benefit of better filtration. 2~ Contact points. The type of floor plays a part as the action of the compressor vibrates the floor and frequently amplifies the noise. plenty of high density sponge rubber under the contact points, can use carpet pieces 2~4 layers. The tank can also amplify so if you are really fussy you could use some stick on sound deadener sheet. Make sure all guards are tight and not vibrating. 3~ Compressor itself. Some units are naturally nosier than others, as a rule of thumb direct drive piston is the noisiest, belt drive piston is next then come all the specialist types like diaphragm, vane or even screw. A rule of thumb is slower is quieter. If you do put a box around it it will get hotter, for air ducts into the box the easiest and best way is to get a couple of soft cheapo brooms and line the path with them. The broom bristles should intersect in the middle 1/3. That works quite well.
@kihestad
2 жыл бұрын
A lot of useful considerations here, thanks a lot for your input 👍 I will definitely take a look at your bullet point number 2 - I think the vibrations is what is causing most of the remaining noise.
@p0lyglot
2 жыл бұрын
Also you can add a pipe to the inlet(s) and direct it outdoors, that will quiet it right down too.
@jonathanbetenbender307
2 жыл бұрын
Ok so I've got a generator in a bus behind an over engineered wall (massively dropping dB and changing the frequency for lower percieved noise). I've already got some 1"thick Rubber matt and ¾"rubber foam matt set it on. I can set it on a platform with super stiff springs (lowering the contact patch)... I'm thinking no lol. My main thought is what can I do to lower the noise it makes in the first place. I've already gone overboard, but was thinking you might have some good input here.
@dazaspc
2 жыл бұрын
@@p0lyglot You could but that will add another problem I didn't address. All compressors make water in the receiver due to the dew point of air and it getting compressed. It is VERY IMPORTANT to ensure this is drained as frequently as possible. I run the biggest elbow that will fit to replace the drain point in the tank (Always ensure it is the lowest point also) then a big hose to a ball valve in a convenient position to drain moisture every time I switch it on and off. This can also be noisy but there is a cheap solution. I make a silencer to catch the mud and quieten it down. For a 1/2" hose and ball valve drain i'll get a piece of galv water pipe1 1/2" threaded on one end to fit the 1/2 " hose. Usually 300mm long but longer is quieter and pack hard the pipe with old heavy rags, stuff like denim, with a mix of t shirt thrown in. This I compress in the press until it is very tight (you can over compress but that was under a 50 ton press you only need to use enough to make it solid) . I then drill holes in the sides of the pipe to cross over each other at different heights just big enough to clear some nails. Then install the nails into the compressed rags inside the pipe with the nail heads on the outside. Normally not needed but you can then wrap the outside in 100mph tape to restrain the nails from blowing out. If the rags are compressed hard enough it isn't necessary but everyone is different. I have put these against commercially available silencers and unless they are flooded with oil they beat the commercial ones in restriction and noise. They will clog eventually but I pulled the drain one of my compressor that failed after 15 years and used daily and it was still working fine.
@dazaspc
2 жыл бұрын
@@jonathanbetenbender307 Check anything that comes off the generator. Cables can also transmit vibration therefor noise, cushion the first few contact points. It should help.
@TheDurdane
2 жыл бұрын
Thanks for your interesting experiment. The reduction in noise is huge. This is because the decibel scale is not linear but logarithmic! By the way, there is still some room for improvement in my opinion, namely: 1. Sound is reduced not only by diffusion, but also by mass. It does not matter what the density of the material is. So if you use heavy material, thinner material will suffice. Covering with lead is an obvious choice then. This can be done on the inside or the outside. 2. There is also much to be gained in the kind of insulation material you use on the inside. If you use specially manufactured foam rubber with a wave pattern for sound insulation, the sound is additionally dampened. 3. Then there is impact sound. Sound that travels through solid material. This can be improved by making the box double-walled. Most of the damping occurs at the transition between solid material and still air. 4. Another improvement would be to isolate the compressor from the ground by removing the wheels and instead putting it on thick and soft rubber pads (or on air tires). Or you turn a couple of sturdy eyes in the ceiling of the box and hang the compressor from them with thick ring-shaped rubbers (as is often used with tent pegs. Anyway, good luck. It was an informative video!
@kihestad
2 жыл бұрын
Thanks a lot, glad you liked the video 😊 I dont think I could have put on lead, it would probably have worked but remember I had to get it upstairs 😂But I got your point! It would probably have been better to use MDF instead of chipboard for the box, as MDF is more dense. When it comes to the insulation I used a pretty good one - it's Rockwool made especially for sound insulation, it is twice as dense as "normal" Rockwool insulation. Double wall would probably have been a solid upgrade, I did not think about that when I made it, it has been mentioned by others as well! I will try your tips number four using some kind of soft rubber material to allow it to "shake" a bit inside and perhaps avoid vibrations. Thanks a lot for your feedback and your improvement tips! 👍
@Tensquaremetreworkshop
2 жыл бұрын
The cheapest way to add mass damping is to use sand. Double wall enclosure, pour in the sand. Not only high mass, it is also 'high friction', so absorbs the sound energy. I used this very successfully on my dust extraction system. Sand filled baffles were used in the early days of audio- much lower coloration at lower frequencies.
@Nphen
2 жыл бұрын
@@Tensquaremetreworkshop Thank you for the trick about using sand, and thank you to this whole thread (and video) for showing the world something I've been thinking about since I bought my compressor: how much quieter is it in a box? I'd think a simple box, then filled with sand and made double-wall, would be the way to go. Less build time, plenty of sound dampening.
@Tensquaremetreworkshop
2 жыл бұрын
@@Nphen let me know how it goes!
@Milan_M95
Жыл бұрын
what about zig zag walls, i heard no one talking about this here buts its commonly used in stuidios
@Kalium951
2 жыл бұрын
Nice video. However, one thing I would like to recommend is to reroute the on/off switch to somewhere more convenient. If you were to get a broken hose or connection somewhere when you are not in the garage the compressor will keep running until it destroys itself from overheating. It's a good idea to turn off the compressor when you are not using it to avoid this risk.
@dolphincliffs8864
Жыл бұрын
We shut ours off at the breaker box. Done.
@ArtyMars
Жыл бұрын
@@dolphincliffs8864 I recently Discovered Most American Outlets don't have on/off switches at the wall powerpoint. They rely on the product having an off/on swith built in which is terrifying as an Australian who can't imaging leaving a 240 volt outlet plugged in and turned on indefinitely hahaha
@dolphincliffs8864
Жыл бұрын
@@ArtyMars I agree it is stupid how we do it here however,in our case the compressor and outlet is out of reach.
@ArtyMars
Жыл бұрын
@@dolphincliffs8864 the amount of times however I’ve been going mental trying to figure out why something won’t turn on tho and it’s just not turned on at the outlet hahah I’ve wasted hours of my life on that 😂😂😂
@LifeInJambles
Жыл бұрын
@@ArtyMars There's a lot about our standard electrical practices that doesn't seem like the best idea tbh. Daisy-chained stab connector receptacles are a convenient way to do things, but a little time spent pigtailing can make things a lot more reliable for instance.
@ElderlyIron
2 жыл бұрын
I used panels for suspended or "drop ceiling" panels or the neighbors generator room. Another aspect you may consider is phase cancellation and not having your box side parallel, as the reflect back and forth to each other. Straight and flat becomes a sounding board.
@Russell_and_Rosko
Жыл бұрын
Yes, reflecting is effective at reducing standing waves. It’s shocking how well it can work
@garywatts5477
2 жыл бұрын
I've built several of these over the years before I bought an actual silent compressor, the type made from adapted refrigeration compressors, which are, well, no more noisy than your refrigerator. I would use actual carpet for the insulation and foam. They all worked pretty good, but yours is impressive.
@DMahalko
2 жыл бұрын
That's a scroll compressor. The main downside is that oil needs to be mixed with the incoming air stream to lubricate the scroll pump and motor bearings, or it will eventually seize and burn up. The oil is finely atomized into the air stream by the scroll, so you need an oil mist removal trap and filter on the output side. If a scroll compressor is pumping into a compressed air line, if it is turned off it can't deal with the output pressure. It will stall and hum, and trip the thermal reset. You need a way to unload the output pressure so it can start easily.
@garywatts5477
2 жыл бұрын
@@DMahalko I don't know about current refrigeration compressors, but the compressor I have has a piston. It has no rings and compresses air via a thin layer of oil between the piston and cylinder wall and yes, you do get some oil in the air. This requires some really good filters because these units are often (or used to be) used as dental compressors. Most compressors should have a check valve after the pump and before the tank as well as a pressure relief or unloader valve incorporated into the pressure switch because, as you pointed out, the motor may not be able to start the pump while it's under load.
@VitorMadeira
8 ай бұрын
The key is: HIGH PITCH NOISE! Lower high pitch noise and you will get a better quality work environment. That is what your video proves excellently. And if you want to decrease *lower pitched noise* (bass) just add foamy / ragged materials inside the walls of the enclosure box. That would have helped a lot. Thank you for this little but fantastic video. Greetings from Portugal.
@kihestad
8 ай бұрын
You summarized it perfectly 🤩 That's exactly my opinion as well. I have some rumbling noise now from vibrations going into the wooden floor. It's not very loud and not very annoying. I have plans to add some soft rubber to the compressor feet and under the box to reduce it 😊
@clarkelliott5389
2 жыл бұрын
My Brother-In-Law put his large air compressor in an enclosed space outside his shop. He poured a concrete pad, ran electrical to it, and ran air lines from the compressor back to his shop. The enclosure has fiberglass in the walls to help deaden the noise. Works pretty well.
@radicalracing09
Жыл бұрын
and that's also safer incase it ever exploded
@clarkelliott5389
Жыл бұрын
@@radicalracing09 There are a number of videos on YT showing compressors that have exploded. It is surprising how much damage they can do. Some of the users have stated that the next compressor they buy will not be anywhere near where they are working as it is just too dangerous!. kzitem.info/news/bejne/1KOVrH5siZOlZ34&ab_channel=3Generation_Racing
@Xx_TheCuriousBrain_xX
2 жыл бұрын
Just wanted to say i truly enjoyed your video, creative idea, pretty nice editing skills, very quick straight on point and started showing actual content real quick and didn't feel waste of time...well done!
@kihestad
2 жыл бұрын
Thank you very much 😊 Glad you noticed and appreciated the way I made the video. I am still learning though, and I try to improve for every video.
@funkiwikid6106
Жыл бұрын
Great video and believe it or not you got better results than you thought, 85dB to 70 dB is achieving a 5.6x reduction ! The silent compressor is only half the capacity so is not at all comparable ? Buy a screw compressor that is quieter than a piston type but the cost is was more. Bang for your buck with a home build from surplus material will be great value for most guys. Remove the plastic wheels and rubber mount the compressor inside the box to minimise vibration transfer will help some more. Your car air cleaner's design is to cut intake noise, try the same on the compressor and get some auto sound deadening sheet stuck to the compressor tank as well.
@kihestad
Жыл бұрын
Thanks 😊 I guess I have over-simplified and even misunderstood how the decibel scale actually works. The new air compressor is approx half the capacity compared to the old one. For my usage I have not noticed it that much, except when using my sand blasting gun or when just blowing air. A screw compressor would have been great, but as you say to expensive for a hobbyist, and too big as well 😏
@bur1t0
2 жыл бұрын
I love the "should you build it? no there are better and cheaper options. But if you've done them, then you don't have a choice anymore!". I like the consideration of different use cases. Great project too!
@ronaldjesse9892
2 жыл бұрын
He created a speakerbox, not a sounds reducing casting. Therefore the result is very poor
@tracyrreed
2 жыл бұрын
@@ronaldjesse9892 What should he have done differently? Isn't a speaker box the desired kind of enclosure in this case?
@kihestad
2 жыл бұрын
Thanks Dan 😊that was a decent summary!
@kihestad
2 жыл бұрын
@Ronald Jesse: But the result was actually great... I think you might have missed some parts of the movie - there is a hidden plot twist in it, some needs to see the video a couple of times before they catch it! 😊
@oalternativo
2 жыл бұрын
Well done! one way to make it even quieter, is to simply build a box around the box, with empty space between the outer and inner wall. Same principle as in sound studios, called room inside a room. Double walls, double doors, double glass window.
@michaelrichardson5505
Жыл бұрын
This guy built a 16th order tripple iso clamshell reverse anti bandpass air compressor enclosure. Im actually impressed with his box building skills
@kihestad
Жыл бұрын
Haha, that sounds cool 😎 Let's go with that 😋
@ThrawnFett123
2 жыл бұрын
"You need to drain the tank, it will rust and fail eventually!" I agree, but I never drained my work compressor and it works 1000 times harder than my house compressor. The things that failed on all the compressors that I ever owned wasn't tanks, was the compressor from lack of oil (changes or "sealed no oil" compressors). I had a tank last 3 compressors, the last 2 not same brand and used, over 15 years by the sea. So clearly ideal environment for rust and humidity...
@A6Legit
2 жыл бұрын
Yeah but a failed tank is catastrophic. A failed motor is not...
@robonator2945
2 жыл бұрын
Holy, jesus I just scrolled down to say how well presented this was and how well explained it was and saw the subscriber count; this channel easily has the production value of a channel a million times it's size. 10/10 stuff, seriously just, god.
@kihestad
2 жыл бұрын
Thanks a lot, that was very kind words!! 🤩It is so many skillful people creating so much great content here on KZitem, it's not easy to be "discovered" amongst the crowd. I think that is OK, you should have to put in some effort to earn your spot. It's the same as in any profession really. It seems like this video got a little extra traction now, I normally have around 500 visitors per day - and not I suddenly got 60 000 😁 I have to admit - it was a bit scary... 😂
@stevem1081
Жыл бұрын
I've seen this done with generators used at events, (yes, they have very quiet ones, but very expensive). They built a box with baffles and used fiberglass, which is not a good sound killer, then they used a squirrel cage fan, which was small, quiet and blew a lot of air into the box to keep it from overheating. It was not silent, but it drastically reduced the noise. I also watched a demonstration where they took a 55 gallon drum, lined it with fiberglass, then put a old school bell in it, put the lid on and it only slightly muffled the sound, then they used the blown-in insulation made with shredded paper, and it made a huge difference in the reduction of sound. This was to show the difference of how much quieter your house could be using a different insulation in the attic.
@kihestad
Жыл бұрын
Sounds great 👍 I would assume this kind of box will work quite similar for a generator as for an air compressor. You might have to deal with exhaust from the engine, and perhaps even more heat than from an air compressor, but otherwise much of the same 😊
@rpavlik1
Жыл бұрын
Make sure you provide a way to open the drain on the bottom to let out the water! You don't want the tank to rust and burst, it can be pretty violent when that happens.
@kihestad
Жыл бұрын
Absolutely! It's a bit cumbersome as it is now, I need to open the four eccentric locks and pull of the door and then take the compressor out of the box. It takes no more than 5 minutes, but it's enough to postpone it to the next day 🙄I better put on a line and have it on the outside....
@kootenaycat
9 ай бұрын
@@kihestad there are automatic drain solenoids you can add that work on a timer. Connect it to the power when the compressor is turn on and route the drain outside to make it low maintenance and safe.
@bryceg5709
8 ай бұрын
Take some largish iron pipe. id recommend atleast 1" bigger is better. Put in a T and a drip leg and drain valve and then a vertical component the longer the better. From the air compressor take your pressure off the drain side yea this is the wet side but now we constantly drain the condensate. Run that to the T. Off the top of the pipe elbow reducer regulator and moisture trap/dryer. Now 100% of that water gets blowm out of the tank into this vertical pipe. The air cools in this large manifold and the moisture falls out dropping into the drip leg. Being large the air flow is low and the water condenses out and runs to the bottom were you should reduce and install a drain valve on the drip leg ideally routed outside so you can just blow that water out. Mine doesnt get any moisture in the trap.
@brallybear620
2 жыл бұрын
I really enjoyed your video. But, note that air compressors in general have very poor efficiency and that means there is a lot of heat procuced inside the small volume of the enclosure. I would guess like 80% of the installed power is lost. So a lot of cooling air must be circulated around the compressor at all times. If the temperature inside the enclosure rises the efficiency of the compressor will be even worse.
@kihestad
2 жыл бұрын
Thanks a lot, glad you liked it 😊 It's a pretty cold climate here where I live in Norway, in the Northern part of Europe. I have actually fitted a heat pump in my garage to be able to use during winter time. I can see this is a bigger challenge in warmer climate, and a more powerful fan or event radiator cooling could be needed if it's in a very warm environment.
@brallybear620
2 жыл бұрын
@@kihestad We are pretty much neighbours then.LOL Gteetings from Sverige.
@oldtimefarmboy617
2 жыл бұрын
When I worked at a truck repair shop we had a large high capacity air compressor with a very large air tank. It was located in a shed behind the shop and the noise it made inside the shop was very small. All we had to do was periodically go out there and open the bottom drain valve to let any accumulated water out so it did not diminish air capacity. A lot of people make the mistake of not purging the water that condenses inside their air tank frequently and then wonder why their air capacity keeps decreasing. If you build an interior sound dampening enclosure for your compressor inside your shop, I would strongly suggest running a line from the bottom drain valve fitting to a drain valve mounted on the outside of the enclosure.
@kihestad
2 жыл бұрын
I wish I could keep it outside my garage as well, but I just dont have space for it. My garage is placed with minimum distance to two of my neighbors. The side facing my own property is not usable either, as it's just a slim path between my garage outer wall and a concrete retaining wall. In front of the garage door is no good either 😋 I agree when it comes to draining the tank! It's a bit cumbersome as it is now, I need to open the four eccentric locks and pull of the door and then take the compressor out of the box. It takes no more than 5 minutes, but it's enough to postpone it to the next day 🙄I better put on a line and have it on the outside....
@oldtimefarmboy617
2 жыл бұрын
@@kihestad Understandable. The shop I worked in was between the track of a railroad turn around and we had a salvage yard on the other side and we had an air tank of a little over 2200 liters. You do the best you can with what you have. Since you have a small air compressor, might I suggest you connect a hose between the compressor drain and an easily accessible place on the wall of the box. A 90 degree ell on the bottom of the tank with some sort of quick coupler to hook the hose to the compressor and then a fitting that goes through the wall of the box (not the door) and a drain that empties downward. Then you could simply uses an old milk jug to drain water into and then just poor it down a sink drain. Then if you needed to pull the compressor out of the box you could use the quick connect to unhook the hose and pull it out unencumbered by the hose.
@kihestad
2 жыл бұрын
@@oldtimefarmboy617 Yes, that was a good Idea. Adding a 90 degree bend and a quick release coupling sounds to be very smart! 👍Thanks for the tips!
@davefink2326
2 жыл бұрын
11:22 that’s how ALL “unboxing” videos should be!
@kihestad
2 жыл бұрын
Pretty efficient unboxing 😁 Glad you liked it, thank you so much for your positive feedback 😊
@jan_phd
Жыл бұрын
I put my compressor outside. Remote AC, sound box that is weather proof, long hose.
@kihestad
Жыл бұрын
That sounds like a perfect solution 😊Would have loved to do something similar, but I just dont have space for it. My garage is placed with minimum distance to two of my neighbors. The side facing my own property is not usable either, as it's just a slim path between my garage outer wall and a concrete retaining wall. In front of the garage door is no good either 😋
@bradster1708
Жыл бұрын
I have had a similar experience. 5 years ago I had a 1200W old style compressor like your one, very loud and it does occupy quite some amount if real estate. I tried various things to make it quieter with little success. I then moved overseas and left it behind. The replacement compressor I chose is also similar to yours, 800W 2 stage diaphragm type with a 30L tank and super quiet and oil free design. A literal quantum leap from the old one and also way smaller and lighter, I can just take it where I need it and store it in a smaller space. I also use a much smaller diameter 10m hose that takes up 1/10 the space and weight of the old one and does not seem to affect performance. I can use the new one inside the house without noise problems. I could even use this to run an airbrush it's so quiet. Well worth the upgrade.
@kihestad
Жыл бұрын
I think your experience is very similar to mine indeed! 😊 It's not every day a equipment upgrade feels like a quantum leap, but I agree: this one does 👍🤩
@bradster1708
Жыл бұрын
@@kihestad upon reflection I realize that the only good thing about the old compressor was the handle was easier to reach because it was physically larger but the new one is so light I can just carry it around. This is one rare zero regret purchase, another was my cordless Lithium impact driver. There is synergy there too because the cordless driver replaced many air tools which require a large CFM compressor.
@r2db
2 жыл бұрын
You had mentioned that the new compressor, although significantly quieter, is also rated for much less capacity. Considering that the decibel scale is logarithmic, the sound reduction your enclosure had offered is very impressive. Yes, the old compressor may still have been loud inside the enclosure. If you have air tools that require that capacity then the enclosure can make it far more comfortable in the shop. In addition, an enclosure such as what you had constructed can be easily modified to use a readily available (and cheap) home heating air filter that would offer vastly greater particulate filtration and exponentially more surface area for filtration than the typical air filters used for shop compressors. If you are doing a lot of sanding and/ or grinding this particulate filtration will be appreciated by the compressor in the long run.
@kihestad
2 жыл бұрын
Aha, not 100% sure if I understood you correctly - but yes it would not be difficult to add filtration for the air the fan blows into the box. I am doing mostly metal work, so I dont have an extremely dusty environment, but for those who have this would be quite smart.
@SteagallConde
2 жыл бұрын
VERY GOOD, perfect project! I just lost an extremely silent Dental Compressor due to lifespan and in this update I bought a similar to the one in the video but it really is humanly impossible to use it in my home workshop, even if it is located outside my home. Thanks for sharing! PS: This tutorial was so splendid, that we even forgot -as viewers- how the film direction, the pre-production of the actual setting, the photography, the lighting, the angles and shots of the scenes, the speechs, as well as the entire post-production, refined and very didactic in the final product, not to mention the FX and the subliminal humor always present, with an EPIC ending, congratulations!
@kihestad
2 жыл бұрын
Ahh, I can just imagine how silent a dental compressor is 😌 Thank you so much for your kind words! I am so glad you enjoyed the video, and especially for noticing all the small details 😊😊😊
@StanEby1
7 ай бұрын
I put mine in a plastic container on top of a stack of campaign signs. I needed to keep it from vibrating into the floor of my upstairs shop. Your solution is light-years more brilliant and sophisticated. I appreciate those who appreciate quietude, as I. All the best.
@kihestad
7 ай бұрын
Thanks, I really do appreciate quietude 😊
@bradley3549
2 жыл бұрын
Something else that I don't think people necessarily realize, moving up to a larger oil bath belt drive compressor has big impact on the sound. It's incredible how much quieter my big 5hp unit is compared to my old small oil less direct drive.
@kihestad
2 жыл бұрын
Yes, I have heard some of those. They are not only more quiet, but the sound from them is much less annoying as well. You have to go up in size and prize though... 😬
@bradley3549
2 жыл бұрын
@@kihestad New price for sure is hard to justify for light use. thought I had a quite old belt driven oil bath compressor that was of similar size as yours picked up for free in need of repair. After a compressor pump rebuild and a new tank it worked quite well and despite still being small, was very pleasant on the ears. As they say - they don't make them like they used to!
@kihestad
2 жыл бұрын
ahh, cool - I would love to get hold of a old one and fix it 🙂
@EthanTheEx
Жыл бұрын
Sorry I dont get it; are No-Oil comps quieter? Coz I was looking for a silent comp and the silent + oilless models are sold as a technological progress.
@bradley3549
Жыл бұрын
@@EthanTheEx Oil-less compressors have been typically a lot louder. Mainly, I think, because they also tended to be direct drive. So the compressor pump is turning at the same RPM as the motor and sometimes the motor is also turning at 3400rpm instead of 1700rpm! Makess them super loud. Oil bath pumps tended to be large displacement, so they can turn slowly for the same CFM output. Technically I'm not sure there is any reason you couldn't apply the teflon piston rings and permanently lubricated bearings AND a high displacement slow RPM pump. But for whatever reason it's just not typically done?
@andrewbarnard6169
2 жыл бұрын
This guys episodes are some magic school bus shit. Love it.
@kihestad
2 жыл бұрын
hehe, wished for some magic when pulling that case up the stairs 😂
@ryandalm
2 жыл бұрын
Very good ideas! One tip I would give you is to add a fan at the exhaust end of the box. Therefore it creates a low pressure inside the box which the intake fan blows in and the air will be sucked out much better. Edit: hopefully that makes sense. 🙂
@WoodUCreate
2 жыл бұрын
It probably depends on how well the intake fan runs. If it's providing enough CFM, one fan could be sufficient.
@shangoy
2 жыл бұрын
Great video, absolutely hilarious watching the multiple attempts getting it up the stairs into your attic. Not sure why this is showing up in my feed after a year but a lot of people are commenting recently and you are replying which is awesome. I read a few of the comments and have the same ideas about some improvements, ie, removing the direct coupling to the box from the feet (I saw you had some padding inside, but removing the wheels and using something like a rubber engine mount, adding padding to the bottom of the box on the exterior, etc... Those are minor though compared to reducing the sound vs vibration. I think however though you have partially designed a slot loaded subwoofer or something similar with the zig zag chamber, I think using eggshell foam or any soundproofing foam would be better than the fabric unless that fabric was specifically made for sound. Also, if you used a breathable foam filter on the input and output of the box to do more noise attenuation but increased the airflow to make up for loss it should have made it even quieter. I don't know if I trust a manufacturer that builds both db meters and air compressors though.😆
@kihestad
2 жыл бұрын
Thanks a lot for your feedback, especially fun to see that you noticed that I try my best to reply to all the comments. That has been just natural for me up until now, if anyone takes time to post me a comment I sure want to take time to reply to it. This video suddenly got a lot of traction, so now I struggle a lot now to keep up 😋 Agree with your thoughts, my next improvement will be to tackle the vibrations. The fabric I used on the channels was just something I had laying around, it is not made for sound absorption at all, perhaps I could look into that and add a thicker and better material. I will have to look into breathable foam filter, thanks for the tips! Haha - I buy a lot of my tools and equipment from Biltema, a Scandinavian retail store chain. It's like buying stuff from Amazone or eBay, most of their products comes from China and you can normally find the same products with different colors and under different names. Their products are cheep and has decent quality, but is not typically the tools you see professionals use (for sure 😊)
@jimandrews2967
Жыл бұрын
I have an 80 gallon , 5HP , dual stage air compresdor and it is nowhere near as loud as those oil free air compressors. I mounted mine to the floor with 1.0" or 25cm rubber pads under and on top of the tank feet. I made up a heavy rubber hose in the shape of a loop for connection to the pressure lines mounted to the wall. I have seen people use an automotive air filter assembly adapted to the compressor air intake. It does make the air intake quieter and also filters the air better. Other than some sort of baffled enclosure , there us not much else that can be done. Keep in mind these things can get very hot while running as they also need good cooling air circulation.
@kihestad
Жыл бұрын
80 gallons = 300 litres = more than 10 times bigger than mine (24 litres) 😋 that's a different league 👍 I had a bigger workshop with some friends in my younger days. We had a 1000 litres air compressor, that was also more silent than the little noisy one I had now 😌
@WillN2Go1
8 ай бұрын
Tip. If you have to haul something heavy like that up or down, put a pulley on the box, anchor one end of your rope to the wall or the steel leg of the bench. Now when you pull on the rope you have 2:1 mechanical advantage -- you pull twice as much rope but only half the weight. Also if you can run the rope you are pulling on around the other steel leg, if you need to stop you just bend the rope against the leg and it stops - you won't have to hold all that weight. Those baffles shouldn't be made the chip board, that's a hard surface. They don't need to be structural, so just use foam, egg crate sound proofing foam is best. Now you just have to make sure if you use it a lot it doesn't overheat. One way to sound proof a compressor outdoors is to just build a surround and let the noise go straight up.
@kihestad
8 ай бұрын
Thanks for the advice. My back was hurting for several days, a pulley would have been smart 😔
@larryschweitzer4904
Жыл бұрын
I've got a 2 HP oil type home compressor that I bought in 1970. Now rarely used. I've also got a business that relies on compressed air, so it is taken much more seriously. 20HP screw, 10HP recip back up, auto drains with oil filter traps so we can dispose of the condensate legally, air to air cooler, refrigerated air drier, coalescence filter, pressure regulator. All piping is sloped to manual drains. All air drops come off the top of the piping, CNC equipment has desiccant driers as backups. Compressors are in a sound insulated room. There is a 40 HP screw type vacuum pump in an outdoor room with temperature-controlled fan venting and heating so it never freezes. Synthetic oil, separator cartridge and oil filters are changed every 4,000 hours of operation (year and a half.) Bottom line, air is expensive!
@CM-km6ux
Жыл бұрын
Excellent video! Not only it appears to be a cleverly thought build, but also the writing/recording/editing is, I think, really well done. Thank you and congrats, new sub!
@kihestad
Жыл бұрын
Hehe, it does look like a sub woofer 😂 Thanks!
@zerocks88
Жыл бұрын
in my mind the drop in volume of noise from the first compressor was the difference between it being outside in the open air compared to it being in a neighbours house the difference in the second one was not as dramatic, but since it started off so much quieter it is still very impressive
@kihestad
Жыл бұрын
Yes I agree. Not sure why, but it might be harder and harder to get rid of the noise the lower the volume is? Perhaps it's just because the noise noise reduction is like a fixed percentage, for example 25%, and the amount of sound reduced is then more when it's louder? It could be just that my box was more efficient to reduce the soundwaves from the old compressor 🤔
@cadwerks3277
Жыл бұрын
I did the same thing for a 25-gallon compressor in the early 90s... Learned a lot. I used thick foam, foam spray..We lived in a very quiet neighborhood
@kihestad
Жыл бұрын
Cool, I guess the same challenges exists and solutions works today as they did 30 years ago 😊
@cadwerks3277
Жыл бұрын
@KI Hestad yes, sir!. I do love your "BAFFLE SYSTEM," though. Great Research!. One improvement [beating the dead tree] would be to incase the case...similar to a Refrigerator chamber..with foam padding in between...The Door is the Weakest point 👉 I would create a Waffle Door with at least 3 layers. Your work teaches people a lot, and we can improve upon...
@MrBrassporkchop
2 жыл бұрын
They sell anti vibration pads for appliances which could take this the rest of the way and make it even quieter. Because most of the sound you're left with now is low frequency sound from the compressor shaking and transmitting through the floor and into the walls of the box by putting pads under the compressor it should make a noticeable difference. I think they sell these for washing machines and should be pretty cheap.
@kihestad
2 жыл бұрын
Yes, I think you are 100% spot on! I have put it on some rubber pieces I had, but they are to hard and slippery. The box has several times moved itself sideways because of the vibrations, unitil it hits the wall - and then the vibrations also get transferred that way .. 🥴 I have also got a tip using special dampening springs, guess these washing machine pads are easiest to get hold of. Thanks for the tip!!! 👍👍👍
@tshansen
3 жыл бұрын
Haha, this is so well done Hestad 👏🏻 The details in the sfx when trying to pull it up the stairs. Amazing stuff, I love this kinda "good old neighbour" vibe (the old animated series on tv) So much to learn from this video. The angles, the storytelling with the camera, yes. really well done 🔥
@kihestad
3 жыл бұрын
Thanks Thomas 😊 Trying for each video to improve slightly. 'Good old neighbor' - yes I remember the animated series, a neighbor that always wanted to help but always messed up. Defenetly how I felt trying to get the almost 100kg case up the stairs 😁
@PeterYannick
Жыл бұрын
I have the Czech cartoon vibe - "Pat and Mat". It might be the same because it's called different in different countries.
@tshansen
Жыл бұрын
@@PeterYannick It is the same yes 👏🏻
@peterjensen6844
2 жыл бұрын
Probably not what you intended but this is a REALLY good illustration about how DB is a logarithmic scale.
@firstmkb
2 жыл бұрын
I liked your build and thought process. I think a lot of the benefit you had was simply from distance. For my existing “pancake” style compressor, I would probably look at moving the moving parts further away, and leaving the tank in the shop. Ideally, I’d like a larger tank too.
@MK-xl9tt
Жыл бұрын
Can you imagine putting that much time and quality workmanship into something useful
@kennuimuffins2426
3 жыл бұрын
Great video, but one major factor you haven't account for is in the design. So first up is the fact it is single walled and the material is particleboard, which is not as dense. MDF would be a better option, especially getting thicker sheets and making sure the corners are well sealed. Doing this with a double walled box will be a big improvement. Of course this adds to the cost and time to build it - whether this is worth it is subjective. If you have no option to move the compressor or to get a different one then the price is not an issue. The airflow path is also very open. Many designs i've looked at use small channels and more of them, as well as lining the entirely inside of the channel with foam. It would be great to see you try some new designs in the future, putting the same compressor in each to see how they perform.
@kihestad
3 жыл бұрын
Hi, thanks a lot for you feedback! I agree, MDF would have been better, I have built some speakers over the years using MDF. The cost for MDF is however quite high, probably 4X compared to these mass produced flooring chipboards I used. But I agree, it would have worked better. Double walls would have been great, although I think most if the noise now comes through the air vents. I did not want to make the channels in the ventilation system to narrow as I was afraid of it reducing the airflow. When I check the temp inside now it barely rises when the compressor is running, so I think I'll try to add more insulation into them. Thanks again for the feedback, highly appreciated!!! 😊
@kennuimuffins2426
3 жыл бұрын
No worries. I agree most of the noise will be from the inlet and outlet areas. A better design will mean spending a lot more money and time and everyone has a limit. But here's what I would update for a new version: 1. More channels, tighter spacing and covered in foam on all surfaces. The same arrangement is used on the intake and exhaust. 2. Fan moved to exhaust (negative pressure) which will be more efficient. A larger fan will be needed (ideally with speed control). A temp sensor near the exhaust area will help determine what fan speed is suitable. Personally I use a quiet compressor with a laser cutter but I want to reduce it even further as i'm in a small garage. There's a market for this kind of product but no one is making them, at least not here in Australia. I will be working on prototypes and doing testing. I'm surprised I haven't seen anyone do detailed testing and try out different features/techniques/materials etc.
@kihestad
3 жыл бұрын
Nice, thanks again for good input! I suppose it is hard to get off the shelf sound insulated boxes for compressors as they some in all kind of sizes, and from my experience it takes quite some time to make them, so it will probably be very expensive 😬 Good luck with your project! 😊
@pheelix-
2 жыл бұрын
Another thing he can change is to use Sound deadening mats, I built an enclosure for my 25 Gallon Husky using OSB and Noico 80mil Sound deadening mats. Not only does it cut down on how much sound you hear, but it also reduces vibrations. For my ventilation, I drilled 2 holes in the wall leading to the outside of my garage. The Fresh Air intake I used 4" dryer tubing, and 3d printed a sound reducer that goes on the outside of the house. The Exhaust I ran the 4" tube under a table next to the enclosure hooked up to a small motorcycle muffler, this also helps keep the garage warm when it's cold out. The second hole in the wall is for the compressors Air intake for the pump itself, and used the same size tubing that was on the pump to the wall, with a 3d-printed silencer. I didn't run a dB check but it went from having to yell to hear someone to the talking volume you would use if someone was using the vacuum cleaner in the other room/same room.
@kihestad
2 жыл бұрын
That sounds like a well thought of solution 👍 I am using 30mm ROCKWOOL sound absorbing insulating inside the main chamber, might be that other material would perform better.
@1SGBob1
Жыл бұрын
Interesting video, thanks for posting. One question for you: Have you found the increase in ambient temperature around the compressor to be causing any issues?
@russellrattys6581
Жыл бұрын
i have a very large industrial air compressor, and as mentioned in other comments, a lot of the sound comes from the air intake, my compressor has two cylinders, which alternate up and down, so you get two distinct thumping sounds while the machine is running how i made mine quieter, is actually by taking the air filter off, and pushing a piece of drain pipe onto the air compressor, with a right angle bend fitting, then a meter of drain pipe, now when the machine is running, instead of getting the two thumping noises, it just makes one continuous sucking sound like a vacuum cleaner, i think because the original air filter was straight onto the valve block, when each cylinder was sucking in air, it would pull it straight through the air filter into the valve block, and make that thump sound, then there would be a pause, and the second cylinder would suck in air making a second thump, so air was starting and stopping whilst it was going through the filter, but now theres a length of pipe on the air intake, the air going through the pipe is moving more steadily, and more constantly, so its completely removed the thumping sounds, and replaced it with a smooth, sucking sound
@kihestad
Жыл бұрын
It is a very smart and easy way to reduce the noise 👍 I did not really consider adding a hose, but I checked if it would work to add an air intake muffler of some kind of sort (I would guess it has some of the same effect). I was not convinced that it would help very much after a bit of research. I searched mostly on KZitem. I did not find any solution that I thought sounded very efficient. It absolutely helps a but, as you say it removes the thumping sound and it gets a bit lower in volume. I think the reason it does not fully work is that the tank itself also emits noise because it acts like a sound chamber, reflecting noise from the compressor through the metal tank (I am not sure about it - but others has also mentioned it in the comments).
@russellrattys6581
Жыл бұрын
@@kihestad yes, there is another alternative, but its not cheap, you could buy an empty silent generator housing, and put the compressor in that?
@thomaseriksen6175
3 жыл бұрын
Maybe you could install the the old compressor in series with the new one, to increase the volume of air, but only use the new motor to compress? 😊
@kihestad
3 жыл бұрын
Hi, yes it has crossed my mind as well 👍 I'll put the old one aside for a while and just use the new one to see if it has enough capacity.
@pheelix-
2 жыл бұрын
He could use both motors, it would just require a One way Check valve from the smaller pump/motor to the other tank. This way the 2nd tank/motor doesn't get pressure push back from the bigger tank/motor. I plan on doing something like this soon as the pump/motor on my 25gal doesn't seem to be able to keep up with my small sanding tool I use.
@kihestad
2 жыл бұрын
Aha, that was clever. 'One way check valve' is noted 😊 It does give great flexibility, for quiet/normal operation when less air per minute is required, only the compressor in the noise-cabinet could be turned on.
@pheelix-
2 жыл бұрын
@@kihestad Yup just set the second compressor to turn on at a lower psi and it shouldn't kick on unless needed. In my case my 2nd compressor is a small dual tank portable type that maxes at 120psi, and my main 25 gal maxes at 175. So I shouldn't have to adjust anything as the smaller compressor is already set to turn on a off at lower psi. If anything it just helps add a little more CFM when PSI reaches that level.
@kihestad
2 жыл бұрын
Very smart! Adding a delay relay would also make sure it does not turn on before the main compressor had got the chance to fill up the tank!
@ChunkyMonkaayyy
Жыл бұрын
I had an old oil filled Milwaukee compressor. Damn thing was so loud!! Then heard a “quiet” model in person and it was a no brainer. I don’t even need a silencer anymore. It’s so nice to have compared to the old one!!!!
@kihestad
Жыл бұрын
I have to agree on that, the next generation mechanics who start with new technology don't even know what we're talking about 😂
@charleschapman2428
2 жыл бұрын
I had a compressor that was 6HP and a 33 gallon horizontal tank, I built a 4ftW x4ftH x2ftD box from two sheets of 1/2 inch plywood and used Styrofoam sheets glued on to the inside. I added three bathroom fans to the front of the box and with flexible plastic fan ductwork that went to each compressor head and one went to the motor shroud. I also installed a 12x12 air vent on one side of the box to let the warm air out. The compressor never shut down due to thermal overload although it did before adding the fans, I would run it for hours sandblasting.
@kihestad
2 жыл бұрын
That sound like a decent box, well built. 👍
@MikkoRantalainen
8 ай бұрын
70 dB shouldn't be dangerous to your hearing even in prolonged exposure. Very annoying, sure.
@David-hm9ic
Жыл бұрын
Thank you for the effort and demonstration. My old air compressor is one of the high rpm oil free very loud ones. It's 30 years old and I'm becoming afraid that the tank is unsafe so it's time to get a replacement. When I had my workshop built I made provisions to put the compressor in a storeroom in the adjacent garage. Even though there is an insulated wall separating the shop and the garage you convinced me to buy a "silent" compressor.
@kihestad
Жыл бұрын
It's hard to know how much rust it might be on the inside of the tank after 30 years. Replacing it with silent one sounds like a smart move 😊
@ipopus2
2 жыл бұрын
Thanks for this video which could be useful for me one day. One thing : You misunderstand how the decibel scale works, and the 3 dB rule. Each time you increase the sound by 3 dB, the energy is doubled. Reciprocally, each time you lower the sound by 3dB, the energy is cut by half. This is due to the logarithm scale of the decibel unit system, it is not linear. So looking at the figures in your video, you really decreased the noise of your compressor with your enclosure.
@kihestad
2 жыл бұрын
I might have over-simplified how the Decibel scale is to be understood, let me try to clarify (based on a discussion / explanation from the comments): * 10dB increase is the typically stated value for doubling the perceived volume (subjective), without respect to actual power/energy. * 3dB increase is a doubling of the actual power/energy (objective), without respect to how a typical person would perceive or rate sensed-volume. I have to add that the Decibel is a difficult scale to relate to (at least for me), I might have to study this a bit more - sorry if I got it wrong 😌
@rattech
Жыл бұрын
I just finished up my box (check my vid), and your box is very very well made. I made mine using all free materials, minus the screws I had left over. My baffles are crap due to lack of space inside the box and me being in a rush to get it build and out of the living room with the misus complaining at me for having a massive compressor in her living room, size constraints stopped me making the box bigger. But I plan do add more turns to my baffle in the future. But the main thing is the type of noise that it stops. That high pitch aggressive sawtooth sound is turned into a deep low rumble like big fridge. I've even been considering mounting mine from the ceiling using bungee cords to isolate any vibration going into the garage floor. Nice video and nice box. But yeh my compressor was £20, and the box was free to make. My budget was 0. As I'm very poor currently.
@kihestad
Жыл бұрын
Well done, a huge improvement for very low cost 👍Be aware of heat build up inside the box if you ever should use it continuous for longer period of time. I would think it can get very hot as there is not much ventilation, even less if you add baffles that might restrict air flow and ventilation even more.
@El_Chompo
7 ай бұрын
I saw a video on youtube years ago where a guy put a muffler on an air compressor intake. It really helped a lot.
@kihestad
7 ай бұрын
I have seen it too. It does help, but not that much. The noise comes not only from the air intake, the tank itself resonates a lot of the noise.
@mastergx1
2 жыл бұрын
A friend of mine was running a home workshop and his neihbours were constantly complaining about the noise. We brainstormed a few ideas and finally settled on digging an 8ft hole in his garden, lining it with concrete and then we basically buried the fucking thing under a 3/8" steel plate. Its got a few breather tubes and about 4-5ft of soil on top of it - you can only tell its running from about 10ft away. Past that you can't hear it at all! We have had to dig it up once to repair it but apart from that it works perfect. That was 6 years ago.
@kihestad
Жыл бұрын
Very cool solution! Did you add a automatic drain valve to let out moist in the tank?
@mastergx1
Жыл бұрын
@@kihestad We don't have an automatic one but we did add a line to the drain (had to make an adapter on the lathe) that runs up to a small valve on the surface. He just opens it every now and again so the pressure can push out the moisture. He knows his stuff!
@josef56
2 жыл бұрын
A lot cheaper and easier to buy a compressor that is a quiet model. I bought one from hitachi that is almost silent. I use it in my church work and it works as advertised. Great video and project!
@kihestad
2 жыл бұрын
Glad to hear you have come to the same conclusion as me. Thanks a lot for you comment! 😊
@-ZIO
12 күн бұрын
My compressor was intolerable, the noise level was as bad as yours, possibly worse. My solution was to wheel it outside my garage. It solved the noise problem but my solution created a new one with my neighbors.
@kihestad
11 күн бұрын
Haha, one problem solved, a new one created 😅
@tepidtuna7450
Жыл бұрын
I grew up around noisy compressors. When it was time to buy my own I dread the thought of noisy. I bought a diaphragm pump design (Chicago brand) and never been happier. I hear it when it's on but it's not disturbing. 69dB Chicago Hush 50.
@kihestad
Жыл бұрын
That is not bad at all, you can absolutely tolerate 69db noise once in a while 👍
@ohioplayer-bl9em
8 ай бұрын
Put the compressor into a box and place it outside up against the wall of your workshop. Run the air hose and the electrical through the wall. Lots of people do it this way and I think this will be my spring project
@kihestad
8 ай бұрын
Smart if you can do it! I just don't have space for it outside of my garage. Just be aware that your neighbor (if you have any) might be annoyed - because moving it outside does not make it more quite, the noise is just moved away from you and closer to someone else 😅
@oantech4252
8 ай бұрын
Nice job.. Lots of work for sure.. Some improvements... Amaz0n has sound deadening foam. It's not that expensive and designed to absorb sound. Next. If it were my garage, I have frequent mice visitors. They would love to take up residence in that baffle chamber, especially if you don't use the compressor daily. You may want to add some metal screen mesh at the inlet/outlet. You can get this mesh at mcmaster carr supply. Lastly, you can use your first "noisy" compressor in the "off" state as an accumulator tank at the garage floor, wall or suspended from the ceiling. Run an air line from the silent tank to the second tank closer to your work. Tap off the accumulator for your active work air-line. This will give you more available volume to run air-tools etc.. Thanks for sharing all that information.
@strescicca
Жыл бұрын
so, the "port' you built can be tuned using a speaker enclosure calculator. might be fun to adjust the port area and length to tune the box to a really low frequency to maybe reduce output through it. it wont really change the frequency of the air compressor but it will help filter out the higher frequencies in theory.
@kihestad
Жыл бұрын
You are probably right about that, but I don't really know how to calculate it and I don't have any tool to measure the sound level in different frequencies - I am afraid it would be a lot of trial and errors, and possibly only errors 😁
@strescicca
Жыл бұрын
@@kihestad yeah. the returns may not be worth the investment.
@millwrightrick1
Жыл бұрын
One place I worked had a 400 hp air compressor that was very loud. People would complain about the noise if they had to work near it. The problem is that compressors generate a lot of heat and that heat needs to go somewhere. Sound insulation is also heat insulation so when a insulated room was built around the big compressor the oil got so hot the oil hose burst spraying hot oil onto hot surfaces causing the oil to ignite. The result was one compressor dragged off to the scrapyard.
@kihestad
Жыл бұрын
Wow 😳 the whole building could have burnt down. Cooling definitely needs to be added to the solution!
@DNomer
Жыл бұрын
It sounds a lot quieter when it shuts off! With a typical shop air compressor, which is about a 5 hp piston type, the best answer is to put it OUTSIDE the shop. What I always do is make a tiny little shack to put it in, on its own tiny slab, with some insulation and vents for the air, and the ability to unscrew 6 screws to take one wall off, to drain the water, etc. Most shops are VERY reflective of sound, having all hard surfaces everywhere, so going outside makes a huge difference. Even my big 160 cfm trailer mount air compressor is not very noisy, and outside the shop, you cannot hear it much inside the shop, although it is not for shop air.
@kihestad
Жыл бұрын
Agree, putting it outside is probably the easies and smartest solution to the problem 😊Unfortunately, I just dont have space for it. My garage is placed with minimum distance to two of my neighbors. The side facing my own property is not usable either, as it's just a slim path between my garage outer wall and a concrete retaining wall. In front of the garage door is no good either 😋
@DNomer
Жыл бұрын
@@kihestad Yeah, I have often seen private people and commercial shops put their shop air compressor out back, but NOT in a little shack, so it radiates plenty of noise to the neighbors -- not such a hot solution! It takes some work to bottle up the sound and still keep the compressor healthy.
@BuckRogers2491
9 күн бұрын
Makita has the MAC Q series and they are really quiet. We have the MAC210Q (oil less) and the MAC700 (oiled). The 210Q is in the territory of having a normal conversation next to it. The MAC700, while rated higher dB is still pretty quiet due to its large piston. Fantastic compressors.
@kihestad
8 күн бұрын
Thanks for the tips 👍
@valkman761
Жыл бұрын
Built a separate room for the 5 hp piston compressor in my new shop, together with some storage for multipurpose usage. Nothing special, drywall on both sides of the wall, insulation 125 mm on one wall and 200 mm on the other wall facing the shop (it's in a corner). Sealed the wall edges completely to restrict any sound leakage and it takes care of the job. It's not silent but the most difficult part is to restrict lower frequencies. You need mass, thick material or double walls to dampen those and that's not how walls are usually made. When you get the high frequencies out, you'll be fine.
@kihestad
Жыл бұрын
Smart!
@velcroman11
Жыл бұрын
My father built a compressor from a 500cc single cylinder Vello engine. It made the lights flutter and it had a rather pleasant doongka-doongka sound. It would keep 3 high pressure spray guns at full tilt.
@kihestad
Жыл бұрын
Nice, i DIY air compressor - that is rare 👍
@3DPeter
2 жыл бұрын
I see a few things that are done wrong and that is that i would use egg carton shaped foam mats because they absorb sound waaaaay better than those flat mats. And you must hang the entire compressor on rubber O rings that are also used to hang up a car muffler, because now the vibration of the compressor is being transfered through the hard plastic wheels and metal stud to the wooden plate it's standing on. And that PC fan should not be on the outside, but at the other end of the air channel on the inside, because then you won't hear that one aswell. And to go the extra mile you could even insulate the outside of the entire box with sound proofing materials, and then use extra wood panels to make a closed closet under the desk where the compressor is located. Then it would be silent as a fridge.
@kihestad
2 жыл бұрын
I did use Rockwool sound insulation material (3cm = 1 inch) on the main chamber, I think that is even better than these foam based mats. You are correct about the ventilation channels though, I used a very thin fabric there. I was afraid of not having enough airflow to keep the compressor cool, and I could not make the box much bigger to I went for very little sound dampening on both the inlet and the exhaust channel. The cooling seems to be no problem in my "cold" climate, so I might add some more padding now to see if it helps. Thanks for the tips! 🙂
@SteelBenderMan1
Жыл бұрын
KI, I love your design, very impressive. I did buy a quiet compress from California Air, but I also still have a small dual 'hot dog' style compress. It's portable, good for job site nail gun needs, etc. I didn't want to use the hot dog unit in my small shop because it's so loud. However I love your solution and now you have me thinking (which in my case can be trouble a brewing) but regardless, I may find building a sound enclosure with inlet and outlet baffles significantly reduces the loud screaming to a more tolerable level. Now I need to purchase a sound level meter. I being a guitar player didn't want one because it would only confirm what neighbors down the street and around the corner complained of that I'm too loud. I'll get one and of course, exclude it for use of impuning my guitar volume as the cause for the degeneration of today's youth. Thank you for your time creating this Ki, Blessings, Bill Bores SteelBender Innovations Cypress, TX.
@kihestad
Жыл бұрын
It sounds like we have a lot in common, I do play guitar (not very often these days) and I also have one of these small portable air compressors, mine is super loud as well. I agree to your plan, just don't use the decibel meter when you are playing guitar 😅😂
@dp7933
7 ай бұрын
I haven't done it yet, but my plan is to make an upward facing parabola to reflect sound up. Then I would place it above head level outside and all the sound gets blasted upwards. Yes, useful only under clear skies, but no ventilation and fire worry.
@kihestad
7 ай бұрын
Cool idea!
@mjremy2605
Ай бұрын
This was an interesting experiment and rich content. Thank you for your hard work in this scientific demo. Very useful to us all. No, I disagree with you. You SHOULD BUILD IT. Spares your hearing, does not annoy neighbors who will report you for noise violations, and a cabinet greatly increases safety in case that compressor blows up due to rust on inside due to damp air. So, absolutely, every compressor should have a strong tough cabinet around it from solid thick plywood. Here are some thoughts I had but have not tried out yet: 1. Stick Noico or Killmat patches on metal tank and any other metal parts to eliminate rattling noises from metal. It changes the clanging of metal to a softer thuck thuck sound. Also wrap tank in a sound blanket. 2. Add Mass Loaded Vinyl (MLV), a type of rubberized vinyl mat, very heavy to all sides of box on inside. It dampens sound and vibration. 3. What about adding a car muffler to the vent to break up the sound? It might work really well. Maybe add it to the outside vent. 4. Rust on inside of tank is the biggest risk. Metal degrades over time, then Kaboom! I wonder why they don't rustproof insides of tanks before selling. I would get a dehumidifier on that air intake side so no humid air enters or leaves the tank. Useful if you are sand/soda blasting, which is what I want a tank for. Thank you for an excellent video! Please do not add any music to a DIY channel. It hurts the ears. I have to constantly turn the volume knob on off on off and it is stressful and an irritant. Much better to be with natural sounds only.
@kihestad
Ай бұрын
@@mjremy2605 Thanks a lot for your positive feedback, and for thoughtful comment 🙏
@foogod4237
Жыл бұрын
BTW, the technical term for the alternating walls you built on the input and output is "baffles". To be honest, i probably would have just created a big box lined with acoustic foam, with standard air filters leading to a few feet of 6-inch insulated flexible air ducting, (which I'd either run to some other location or just leave coiled up for sound reduction), and called it a day. I suspect it would have gotten the same or better sound reduction results as this much more complicated and time-consuming construction...
@kihestad
Жыл бұрын
Ahh, baffles it is 👍 I might have overcomplicated it, hard to tell if a much simpler box would had worked as well 🤔
@cognitor900
Жыл бұрын
I’ve got a silent generator. Noisiest little trucker I’ve ever had…. Mass plus rubber plus heavy adhesive weighted rubber = a start….! Thanks for the video and the honest assessment.
@kihestad
Жыл бұрын
At least air compressors turns off once in a while whenever the air pressure is high enough. A generator needs to run all the time to produce electricity. I can totally understand that can be tiresome 😣
@TheXDred
8 ай бұрын
I constructed a DIY air compressor using a compressor from a refrigerator. It doesn't produce large volumes of air, but it's so quiet that you can use it comfortably at home. I utilized it for airbrushing, and the tank was a repurposed refrigerant cylinder. In essence, if you don't need large volumes of air, for instance for spray painting with a gun, I would recommend this setup. Additionally, you could use a large receiver and create a multi-stage system: the quiet compressor operates by default, and a more powerful one kicks in only if the quiet one is not sufficient.
@coreygrua3271
2 жыл бұрын
A thinker’s video. It is so easy to convince yourself that all is well and even fantastic. This video is brutally honest and quite Edison-esque. Try and try and try. Learn and learn and learn. Brilliant!
@kihestad
2 жыл бұрын
Thank's a lot for your comment! Very cool to see that you found the underlying story 😊Not sure if you could tell from the video, but I was actually quite disappointed when I tested the old noisy air compressor inside the box for the first time. I had expected it to work a lot better 😣 I am glad I took one step back when it happened - and not just settled with a lame result 😁
@CarlessShoptalk6776
Жыл бұрын
my favourite part about home shops is the bespoke elements people add to them; your silent compressor box is awesome for that reason alone
@datawasteland2287
Жыл бұрын
you would be amazed how quiet "California air tools " compressors are ,, try to find a video on KZitem or at their website but in person it is truly incredible . i have had one for a few years now
@kihestad
Жыл бұрын
A lot of people have recommended California Air, and I have seen a lot of positive reviews online for their products as well. It seems solid! Unfortunately, they dont sell them here in Europe. I'm not 100% sure, but I have at least never seen any ad for them over here 😞
@MikkoRantalainen
8 ай бұрын
I think you should raise the compressor from the ground inside your box using a mount on springs system similar to optional accessories for outdoor unit of split heat pumps. It sounded like you still received quite a bit low frequency rumble and it's probably caused by the whole enclosure vibrating along with the compressor. We have our outdoor unit for split heat pump on both rubber feets and pretty soft springs stacked and that's very good for the low frequency noise via physical vibrations.
@kihestad
8 ай бұрын
I think you are spot on! Vibrations are the remaining issue I have. Thanks for the tips!!!
@reasoningtruth
Жыл бұрын
As I remember about 40 years ago or so, I made a noisy compressor considerably quieter just by hanging carpet around it. It absorbed the sound enough to make the hundreds of people around it making more noise than the compressor with all their squawking. I hung the carpet on the 4 sides, leaving gaps between them. Then I suspended a piece over the top, of course with gaps. Someone had the great idea to cushion the feet and that also helped. Done in minutes at a very low cost with huge results.
@andrewnajarian5994
7 ай бұрын
A few thoughts, add a remote drain so you can drain the tank without pulling it out. Also, you didn’t add any sound deadening to the exhaust side baffles, which would probably help, as well as some rubber or other insulating material on the bottom of the box. Finally, you have your intake air up top and exhaust on the bottom which isn’t efficient for cooling. I would have the exhaust side be near the top and intake near the floor and use the fan to pull hot air out rather than push air in. Trapping too much heat in there is going to reduce the life of the motor and compressor and cause excess water to build up in the tank.
@kihestad
7 ай бұрын
Very good improvement suggestions 👍 The reason I put the vent output at the rear was: 1) built in fan on compressor blows in that direction 2) I have ventilation between the floor and ceiling upstairs so it blows the hot air out from the garage, it avoids the hot air going back into the room 3) I did not want the fan blowing air into the case located close to the floor, to avoid sucking in dust/dirt from the floor and not that easy to damage it. The temp difference is anyway minimal those few centimeters.
@ronstiles2681
Жыл бұрын
Hi I'm a auto tech and my solution is put a actual car muffler on the compressor intake sometimes it takes a bit to make a adapter but you will see it's worth the time and takes less space
@kihestad
Жыл бұрын
From what I have found a muffler on the intake / exhaust helps a bit, but not very much. I could be wrong though... I did some research but did not find any solution that I thought was very efficient, not even the ones fitted a big car muffler (found some here on KZitem). The tank itself also emits noise because it acts like a sound chamber. I would guess that if a muffler really worked, the vendors would have added it as a standard solution? 🤔
@Cheordig
Жыл бұрын
It's making a huge difference!
@robertcairone3619
8 ай бұрын
Excellent build. My suggestions for improvements (sorry if these were mentioned elsewhere): Vary the separations between the baffles to inhibit resonance. Also the baffles don't all have to be at right angles for similar reasons. Thicker carpeting will make the enclosure quieter, , with acoustic foam being the most expensive. Place a rubber gasket (or the thicker padding) between interior boards and only screw together finger tight without glue. I used rubber washers under metal washers with my screws. Anything that isn't structural shouldn't be rigid. Put soft rubber pads under the feet of the compressor. Anything to prevent transfer of vibration to the exterior box. A sack of sand on top of the box will also absorb some energy that would otherwise radiate as sound. All just design changes or minor cost, but they all add up. It's fun to see such a build work.
@kihestad
8 ай бұрын
Very good improvement suggestions! 👍 Thanks for all the tips!!!
@lenBrill1971
2 жыл бұрын
Build a three sided weather shelter for your air compressor out side, facing away from behind your shop. Rubber mat under compressor footing. Run Plumbing through an exterior wall. You'll barely notice any noise. It cools. It's accessible for regular servicing etc.
@kihestad
2 жыл бұрын
I wish I could 😊I just dont have space for it. My garage is placed with minimum distance to two of my neighbors. The side facing my own property is not usable either, as it's just a slim path between my garage outer wall and a concrete retaining wall. In front of the garage door is no good either 😋
@emmabird9745
Жыл бұрын
In your installation, you might be able to reduce the noise further by placing your box on top of a block of thick foam and thereby decoupling it from the loft floo/garage roof. Putting it in another room was maybe the best advice.
@kihestad
Жыл бұрын
Yes, vibrations are the biggest source of noise now. Will try to improve it by adding soft rubber, dampening foam or springs on the compressor and/or between the box and the floor to improve it. Thanks for the tips! 😊
@emmabird9745
Жыл бұрын
@@kihestad You're welcome. I have to do something about the sound level on our old SIP airmate when I can find the time.
@mark2020
2 жыл бұрын
Fun video so I had a shop at one point and it was zoned in such a way that I couldn't install the air compressor outdoors. It had to be installed in the shop. We built an entire room that held brooms and mops and all sorts of things that hung off the wall but the room was built in such a way that it had loads of sound deadening on the floor rubber mounts for the air compressor sound dedoning in the walls, cielimg and then we built the stairwell on top of this room in order to get to the second level. It wasn't as clever as your box/muffler but it was large enough that the heat level was not destructive and we used the heat to dry all mops and wet rags and such. It never got too hot because the room was four times the size of the air compressor. And it was very quiet. This solution probably wouldn't work for you because our shop was quite a bit larger and the air compressor was approximately 70-80 gallons or 300 liters something like that. It's just nice if you could do something synergistic with that wasted space. We ended up creating a room to hang stuff, dry stuff, support the stairwell for the second level, house the compressor as well as deadin the noise.
@kihestad
2 жыл бұрын
Ahh, that sounds to be a very good solution. Having a "separate" room for it is almost as putting it in a box, but as you say it's better when it comes to cooling. I wish I had a bigger workshop, but since I dont I have just made it as a challenge to create smart solutions and utilize my space as good as i can. Thanks a lot for your comment, it was very enjoyable 😊
@AsitShouldBe
2 жыл бұрын
The main problem is about speed of air compressor, silent ones, except for screws one are extremely slow and unusable with many tools, nice video😉💪
@kihestad
2 жыл бұрын
You have a valid point there, the new silent one takes twice or perhaps three times to fill up the tank compared to the old one. However, I do not run a professional workshop, this is my hobby so I can wait a bit now and then when I am using air-hungry tools. The sandblaster (and just blowing air) requires a lot of air, I just need to be a bit patient when doing that. Thanks for the comment 😊
@AsitShouldBe
2 жыл бұрын
@@kihestad thanks , the sandblaster is the most thirsty tool, you need very good air compressor for using it continuosly. There are screws air compressors, fast and silent but the cost is very high.. Bye bro.😉
@phox0999
Жыл бұрын
Thank you for the honest opinion. Everyone wants to DIY sometimes just for the sake of DIYing a solution that already exists.
@kihestad
Жыл бұрын
I guess you are right about that 😊 The satisfaction of you making something is of course there, regardless if it is an objective success or not 😊
@seanworkman431
Жыл бұрын
I like your tidy, clean workshop and a very good video presentation, the inlet and outlet are called 'baffles'. We had a large industrial compressor and it was loud, one of the mechanics put the air intake up through the roof and it was much better, if you have the room, just put it outside with a roof over.
@kihestad
Жыл бұрын
Thanks 😊Ahh, yes - battles it is! I agree, putting it outside of the workshop is probably the easies and smartest solution to the problem 😊Unfortunately, I just dont have space for it. My garage is placed with minimum distance to two of my neighbors. The side facing my own property is not usable either, as it's just a slim path between my garage outer wall and a concrete retaining wall. In front of the garage door is no good either 😋
@Guitarpicker21
12 күн бұрын
Great video, and I thank you for the time and effort you put into this. One thing I would like to point out- I seem to see holes drilled for your air lines in your trusses. If your structure uses engineered trusses, they are never, repeat Never, to be drilled. They are structural and the loads they are intended to carry are carefully calculated.
@kihestad
12 күн бұрын
Hope you found the video useful 👍 The holes all the way on top of the trusses are placed so they don't weaken the structure noticably. You can see they are above the main trusses mendig plates, the load on the trusses at this position is minimal, close to none. The trusses are also overdimensioned, as I typically do in most of my projects 😁 (I have built the garage myself, from ground up). It has been like this for about 20 years now, so I am quite sure it's OK 😊
@Guitarpicker21
12 күн бұрын
@@kihestad Ah, very good. Thanks for the explanation. I didn’t know that you had built the garage yourself. My comment refers to my area (Canada), and engineered trusses in particular. My main concern is people who see a video, don’t know the background of your video or anything about truss specifications, and just go around drilling holes wherever they please.
@michaelguckian5373
2 жыл бұрын
Don't forget that dB is on a logarithmic scale. Half the dB isn't half the noise, check it out. Great video well done. Especially your honest review at the end.
@Coyote27981
2 жыл бұрын
I had a similar small compressor, noisy as hell. Replaced it with a vertical 150 liter, 3hp twin piston compressor. Same footprint on my shop, way more powerful and quieter.
@kihestad
2 жыл бұрын
Great solution 👍
@gregwillis7767
Жыл бұрын
I actually forgot this before watching this video, but when i was a child, air compressor was always outside in a brick enclosure. No door, just red brick and a back wall. I'm 63 now and don't remember how loud they were. I would think the density of brick would be an excellent sound deadener, but i really don't remember.
@kihestad
Жыл бұрын
I would guess the brick wall did the trick. Putting the air compressor outside is very smart, unfortunately it was not an option for me 😏
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