Many users find it difficult to distinguish between oil-free scroll air compressors and oil-free screw air compressors. There are many similarities between the two, and there are many similarities and differences. Here we pass through the compressed air mass, pressure ratio, and structure. , Manufacturing costs, operating costs, exhaust pressure, power range, flow range in several aspects to compare the difference between oil-free scroll compressors and oil-free screw compressors.
Compressed air quality: They all provide clean, oil-free air to meet the high-end air demand.
Pressure ratio: Oil-free scroll air compressor has a high single-stage pressure ratio, which can reach 10. The general oil-free screw machine has a low single-stage pressure ratio, generally <3, and uses two-stage compression for the power compressor.
Manufacturing cost: In comparison, the oilless scroll compressor has a low cost, no oil seal, no housing, no interlayer, no synchronous gear, no air seal, and low manufacturing precision.
Operating costs: The operating costs of the two oil-free air compressors are lower than those of ordinary machines.
Exhaust pressure: Oil-free vortex machine between 0.6 ~ 0.9Mpa, oil-free screw machine <0.25Mpa (single-stage).
Power range: between 0.3~37Kw of oilless scroll compressor and 45~250Kw of oilless screw machine.
Flow range: 0.39 to 6.83/min for oil-free vortex machines and 7.2 to 44.03/min for oil-free screw machines.