... two types: Type DA with single shaft and Type H with double shaft for dozens of specifications, flow ... of oil free lubrication oxygen/nitrogen compressors, such as single row, double rows, three rows, four rows, ... discharge capacity of single unit is 300m3/min~7500m3/min, discharge pressure ... PRESSURE(Mpa a)ROTATING SPEED(r.p.m)SHAFT POWER(kw)DA350-616061Bsingle-shalft(S)3700. ...