A rotary screw pump has a fixed rotor and yields more CFM efficiency, at higher pressure ranges, up to 218 PSI, if needed.
Vane-style compressors also lose efficiency in higher PSI ranges. When pump speeds are reduced, a sliding vane pump loses RPM and its centrifugal force to operate, yielding more leak paths and lower performance, at lower pump speeds. A vane-type compressor depends on the high RPM to slide the cylinder vanes to create compression. Rotary screw units do not depend on centrifugal force to operate the compressor, like a vane type compressor.
#OIL FREE COMPRESSOR 4 HP 60 GALLON FULL#
Our trained service and support team is ready to assist you, if you ever need them and we carry a full line of air compressor replacement parts.Ĭlick to View Our Warranty Comparison Rotary Screw VSD/VFD Advantage Option over a Rotary Vane CompressorĪ rotary screw air compressor is the most efficient in variable speed applications. This ensures the correct oil and filters to keep your rotary screw air compressor running for years to come. With our warranty, we don’t ask you to buy a service plan, or extended warranty – we just ask that you purchase and use our oil and filters. A Pro-Rated warranty means that, the older the compressor gets, the more risk that you may have to pay out of your own pocket should it need repair. Be certain, when you buy, that you are getting a FULL warranty. Make sure to research and ask questions, when comparing warranty information. Polar Air, by Eaton Compressor, backs all of our rotary screw air compressors with the best warranty in the industry – a full 10 years – and it is NOT pro-rated.
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