Features of Atlas Copco Air End 1.Using standard Atlas Copco profile (SAP), the rotor adopts 4/6 tooth combination, and the diameter of the rotor is equal. Compared with 5/6 tooth (Sigma) or 4/5 tooth (Cyclon) combination, the female rotor has higher rigidity , So it is not easy to deform, and the internal leakage loss is small. 2.SAP type line: due to compression force, it contacts the...