Heatful noisy air compressor

After so many noisy hours to preserve my hearing I decided to intervene on my air compressor and this is the solution.
I hope this is the right section.

https://youtu.be/kIggZZgOl2s

Good work :2tsup: and I like the baffle system you have used to allow air to get into the box.

It looks like you placed the compressor direct onto the foam?

This obviously works with your compressor because it is small and hence light weight and maybe you don't use it that often? For anyone else doing this with a larger/heavier compressor they need to be aware that the weight of the compressor will compress the foam and the vibrations will eventually turn the foam into powder. The compressor will then make contact with the box and the vibrations will be transferred to the outside. Because the sides of your box are thin they would then flex and transfer sound to the outside.

A larger compressor will need to be mounted on something like rubber isolators . This will still transfer some vibrations to the outside so the box will need to much heavier.
For example my V4 3kW compressor with a a 70L tank weighs about 80kg uses a box made of of 32 mm hardwood and has 50 mm foam insulation.
My enclosure does not even have a floor, the compressor sits on rubber isolators on a concrete slab pad and the enclosure just sits over the top. I also have my enclosure outside my shed so it has to be weather proof.

Thanks for the video and the ideas.
In my case, I think it would be too hot and be a fire risk to do exactly the same as you. My compressor is small but it is not as small as yours and I live in a subtropical climate. However the general principle has got me thinking about applying this basic idea to my situation. Probably even a halfway measure would be helpful.

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Originally Posted by DaveVman

Thanks for the video and the ideas.
In my case, I think it would be too hot and be a fire risk to do exactly the same as you. My compressor is small but it is not as small as yours and I live in a subtropical climate. However the general principle has got me thinking about applying this basic idea to my situation. Probably even a halfway measure would be helpful.

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His setup uses 2 x100 mm fans so I'd say its probably more than adequately covered although I'd like to see a bit more space inside the box. In my box only use 1 x 100mm fan and I have a digital thermometer to monitor the air temperature inside the box, A single compressor recharge increases the air temperature by about 5ºC. I also have the fan running for at least 10 minutes after the recharge.

great idea, for a small air compressor, it works and would work well for the odd use in a built up urban environment

but you should be draining there air compressor at least once a week to get rid of any water in the tank, i don't think i saw anything while watching it, i may have missed it.

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Originally Posted by BobL

Good work :2tsup: and I like the baffle system you have used to allow air to get into the box.

It looks like you placed the compressor direct onto the foam?

This obviously works with your compressor because it is small and hence light weight and maybe you don't use it that often? For anyone else doing this with a larger/heavier compressor they need to be aware that the weight of the compressor will compress the foam and the vibrations will eventually turn the foam into powder. The compressor will then make contact with the box and the vibrations will be transferred to the outside. Because the sides of your box are thin they would then flex and transfer sound to the outside.

A larger compressor will need to be mounted on something like rubber isolators . This will still transfer some vibrations to the outside so the box will need to much heavier.
For example my V4 3kW compressor with a a 70L tank weighs about 80kg uses a box made of of 32 mm hardwood and has 50 mm foam insulation.
My enclosure does not even have a floor, the compressor sits on rubber isolators on a concrete slab pad and the enclosure just sits over the top. I also have my enclosure outside my shed so it has to be weather proof.

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You're absolutely right, I use it for yourself.
Also I homebuilt with a refrigerator motor and as a fire extinguisher cylinder that use the stapler.

BobL the next modify is a thermometer with thermostat.:2tsup:

Indeed, I made the independent controls of fan and compressor so that even if the compressor turns off the fans will continue to extract air.
Also add a filter to prevent the saw dust or other dust from being sucked.
I hope I explained despite my bad english

How much air do you need? I've used air brushes for decades.
I bought a regulator for MIG/TIG at a welding supply, I rent a 3,000psi bottle of nitrogen. Does not get much quieter than that.
Then, 20+ years of stage craft and silent running back stage. Paint, airbrush make-up, you name it.

Vibration, noise, excrement, waste, none of those things are problems.

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Originally Posted by fatmansat

Indeed, I made the independent controls of fan and compressor so that even if the compressor turns off the fans will continue to extract air.
Also add a filter to prevent the saw dust or other dust from being sucked.
I hope I explained despite my bad english

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You explained it very well. Thank you.
I admire your engineering skills.

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Originally Posted by Robson Valley

How much air do you need? I've used air brushes for decades.
I bought a regulator for MIG/TIG at a welding supply, I rent a 3,000psi bottle of nitrogen. Does not get much quieter than that.
Then, 20+ years of stage craft and silent running back stage. Paint, airbrush make-up, you name it.

Vibration, noise, excrement, waste, none of those things are problems.

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I have a DA nailer, stapler, air brushes and a saw. I've also wondered if a sander would be a good idea.

The thing is that in my part of the world a medium compressor is fairly cheap. Made in China I expect. The issue is that you get what you pay for so they're also loud.
Hence this video was very interesting but would need to be compromised for a commercial compressor in a hot climate I expect.

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Good work.

Those direct drive compressors are noisy buggers.

Airflow will be better (only if needed) if you divide your fans ie; one fan to suck air in at the inlet, one fan to to exhaust at the outlet.


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Originally Posted by graham.murfett

Good work.

Those direct drive compressors are noisy buggers.

Airflow will be better (only if needed) if you divide your fans ie; one fan to suck air in at the inlet, one fan to to exhaust at the outlet.

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And make sure the air flow is across the compressor - its not much good when the fans are next to each other.

I use my compressor to mount my winter tire on my car

It's a good solution at the moment I did not think about it thanks to the idea

Unfortunately I have the garage on the third floor below ground and the neighbors are not very happy with the noise of the compressor

Thanks for the compliments I am happy to have helped you to solve some problem. This motivates me to make more videos.

Thank's:2tsup:

you are absolutely right.
I had not calculated it:D