The difference between oil-free scroll air compressor and oil-free screw air compressor

Many customers have some difficulties in the difference between oil-free scroll air compressor and oil-free screw air compressor. There are many similarities and differences between the two. The following is a comparison between oil-free scroll compressor and oil-free screw compressor based on compressed air quality, pressure ratio, structure, manufacturing cost, operating cost, exhaust pipe working pressure, power range and flow range.

Compressed air quality: they can produce all oil-free clean gas, to achieve high-grade gas requirements.

Pressure ratio: oil-free scroll air compressor single pole pressure ratio is high, can achieve 10. General oil-free screw machine single-pole pressure ratio is low, generally <3, for power with refrigeration compressor to use 2-stage compression.

Manufacturing cost: In comparison, the cost of oil-free scroll air compressor is lower, with no oil seal, no shell, no interlayer, no synchronous gear, no air seal, and low manufacturing precision.

Operating cost: The operating cost of the two oil-free air compressors is lower than that of general equipment.

Discharge pressure: oil-free scroll compressor in the middle of 0.6 ~ 0.9Mpa, oil-free screw <0.25mpa (single pole).

Power range: oil-free scroll compressor 0.3 ~ 37Kw middle, oil-free screw compressor in the middle of 45 ~ 250Kw.

Flow range: oil-free scroll compressor 0.39~6.8m & sup3;/min, oil-free screw compressor 7.2~44.0m & sup3;/min.