Why is Yong Heng so noisy ?

[bandg]

Another thing people might want to check. The "fan" on the two (one Tuxing and now a YH) I've had are not what I would call "fan blades". The "blades" are not helical as most fan blades are but instead are basically square fins. I've often wondered how much cooling could be improved if a true helical fan that fits could be found.

 

[airgunfans]

All the noise come sfrom them using a sintered bronze intake filter. You can replace the filter with any other using 1/4 bsp or npt thread.

I have just removed the original intake filter and check the noise level after covering up the intake hole with my finger, WOW ! the noise is cut down by two third I would say. Of course the intake hole cannot be covered up but it does prove that some muffler can be installed at the intake to cut down the noise substantially. I have ordered this intake filter to see if it will be good enough, if not, I will make a DIY muffler 

 

[Eaglebeak]

That filter won't make any difference to the noise level. My pump came with one of them and I replaced it with the sintered brass one because the plastic thread was stripped and it was only pressed in place. You will need to mount a quieter filter remotely as suggested by heavy-impact because the 1st stage separator block will have clearance issues with anything larger than the OEM one. From memory, I think the thread is 1/4 BSP. Just screw in a barb or spigot and run a hose to whatever works the best for your situation but make sure you don't choke it. 

 

[airgunfans]

That filter won't make any difference to the noise level. My pump came with one of them and I replaced it with the sintered brass one because the plastic thread was stripped and it was only pressed in place. You will need to mount a quieter filter remotely as suggested by heavy-impact because the 1st stage separator block will have clearance issues with anything larger than the OEM one. From memory, I think the thread is 1/4 BSP. Just screw in a barb or spigot and run a hose to whatever works the best for your situation but make sure you don't choke it.

Thanks for the info. Just cancelled the order. Will make a muffler instead.

 

[ImpactX]

Some think it's the intake filter. I don't think the intake filter is the reason. I own a yong Heng and yes it's loud but not too loud. There are other equipment such as lawnmower, chain saw, table saw, etc we use daily and they are much louder. 

 

[mtshawn]

In 2020, It may not changes every step in quieting your air tools but adding few cool ideas in how you do it. 
Here you'll find, few updated ways, in quiet your air tools. Hope it will bring more help. #Thanks.

Source: https://reviewerguides.com/how-to-quiet-an-air-compressor/

 

[Queequeg]

I have mine in an enclosed cabinet. Problem solved. Put a intake muffler on it and stick it inside something. Even putting a cardboard box over it shuts the noise down. A lot of the noise after installing a muffler is the first stage cooling fins resonating, and only enclosing it like a Honda generator will shut that up.

 

[Bigragu]

I quieted down my already not so noisy lightning by removing all four side panels and lining the edges that attach to the frame when reassembly, with a rubber tube type gasket found at the local Home Depot. It’s about 1/4” wide, oval in shape, and has a peel off sticky back. Comes in a role. It pretty much got rid of any panel vibration when the compressor is running. Can you possibly do that to the Yong Heng case cover?