Compressor types for air, 8:1 compression, oil free?
Compressor types for air, 8:1 compression, oil free?
(OP)
I am trying to work with some ideas for an emergency use air compressor up to 8:1 compressor and possibly run oil free? I am familiar with the "oiless" piston designs common at big box stores but I am also looking at a sliding vane type. Issue is I seem to find them up to about 2 bar ONLY as a dry compressor, then they jump right up with oil and the works like a rotary.
I am curious if a sliding vane system can be done to run dry to these pressures in one stage? This is NOT a continuous use unit and I am sure heating could be an issue. We have other ways to keep it cool if needed, just need compact and find piston types to be rather bulky for their performance.
I am curious if a sliding vane system can be done to run dry to these pressures in one stage? This is NOT a continuous use unit and I am sure heating could be an issue. We have other ways to keep it cool if needed, just need compact and find piston types to be rather bulky for their performance.





RE: Compressor types for air, 8:1 compression, oil free?
Speaking of wear, note that siding vane compressors normally produce a lot of dust as wear products, so if you are thinking of using one for breathing air, think again.
Mike Halloran
Pembroke Pines, FL, USA
RE: Compressor types for air, 8:1 compression, oil free?
I notice commercial shop air systems not in the USA offer vane systems but looks like they run oil mist just like twin screw and need post separation.
Is piston really the only way?
RE: Compressor types for air, 8:1 compression, oil free?
RE: Compressor types for air, 8:1 compression, oil free?
RE: Compressor types for air, 8:1 compression, oil free?
I've never seen one "in the wild" however.
RE: Compressor types for air, 8:1 compression, oil free?
Here's a link to their British website: http://www.atlascopco.co.uk/ukus/products/navigati.... Looks pretty similar to the stuff I had to hand, slightly newer looking design.
RE: Compressor types for air, 8:1 compression, oil free?
RE: Compressor types for air, 8:1 compression, oil free?