... .Motor unloading pumpThe device adopts the unloading equipment composed of GMTB cam rotor pump and YS explosion-proof speed adjustable motor ... (m3/h)Supporting power(kw)Maximum speed(r.p.m)GMTB-1000-6302600GMTB-1500-6504600GMTB-2000-61005600 Unloading Hydraulic Oil Pump ...