Author Topic: Compressed air filtering ?  (Read 859 times)

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Online mwildt

  • Posts: 373
Compressed air filtering ?
« on: September 24, 2017, 11:51 AM »
Looking for recommendations for compressed air filtering. My water filter broke and I need to get another one. Figured I might as well get a coalescent filter to get oil mist out as well since the compressor is oil lubed.

Ideally I should cool the air before it hits the tank, but due to space that won't happen.

With so many brands out there it's hard to tell what's decent. Figured the list or requirements should be

- high flow so I can upgrade compressor without worry. Could use converters to match right pipe size
- availability of replacement filters
- potentially a regulator as well though I can put one at the end of the line separately

No need for an oiler. For automotive tools I just add oil to the tools it self.
I'm not doing painting only air nailers (non lubricated)

Any recommendations ?

Offline Peter_C

  • Posts: 462
Re: Compressed air filtering ?
« Reply #1 on: September 24, 2017, 01:01 PM »
Why use anything? If you aren't painting, nor running a plasma cutter, a little oil won't hurt anything. The cost of the filter housing and replacement elements is not going to be cheap. A good cooling system to remove the water is important, and typically depending on how hard you are running your pump, may require a long run of copper, with drops. I have never found the cheap filter/regulators to work.

I use a Motorguard filter. Looks like a roll of toilet paper and works excellent. Only time it gets used is for plasma cutting and painting. My air tools get plenty of oil, as my rule is if they come out of my tool box they get oiled, and if used a lot on one job they get oiled often. I have air tools that are over 20 years old without rebuilding.
https://www.amazon.com/Motor-Guard-M-30-Submicronic-Compressed/dp/B00YCLUK76?th=1

Offline Holmz

  • Posts: 4010
Re: Compressed air filtering ?
« Reply #2 on: September 24, 2017, 08:25 PM »
Looking for recommendations for compressed air filtering. My water filter broke and I need to get another one. Figured I might as well get a coalescent filter to get oil mist out as well since the compressor is oil lubed.

Ideally I should cool the air before it hits the tank, but due to space that won't happen.

With so many brands out there it's hard to tell what's decent. Figured the list or requirements should be

- high flow so I can upgrade compressor without worry. Could use converters to match right pipe size
- availability of replacement filters
- potentially a regulator as well though I can put one at the end of the line separately

No need for an oiler. For automotive tools I just add oil to the tools it self.
I'm not doing painting only air nailers (non lubricated)

Any recommendations ?

I put a big devilblis job which is ~6" in diameter and 2' log with a desiccant bag inside. Was 2-300$ from memory.
It is for painting, but works for tyres, and everything else.

Offline online421

  • Posts: 72
Re: Compressed air filtering ?
« Reply #3 on: November 28, 2017, 04:06 PM »
I have a refrigerator, pre filter and post filter setup on my compressed air line.

any compressed airline should have a refrigerator and two filters setup, its better for your tools.
Robland NX410Pro
Masterwood OMB1V
Omga AL129
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Holytek DC006
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