... transmission power, gearbox, sets of windlass, mud pump, sewage pump,mast are setup on the chassis.The rig ... drilling can be switched by changing mud pump and sewage pump.The power of drilling rig comes ... night.We can setup the 7.5KW vacuum pump for water-absorbing systerm,it will be more ... and mast are hydraulic operated. Distribute box, sewage pump, master driving clutch system are air operated. ...