(a) Hydraulic Torque Wrench Pumps - Electric & Pneumatic (1) Working pressure - 70 ~ 700 bar. (2) The pressure can be adjusted precisely. (3) 2-stage pump, quick retract and highly efficient. (4) 2 to 8 oil output, 1 to 4 hydraulic wrenches can work simultaneously. (5) Oil tank volume: 3.7 to 9.5 Ltr. capacity. (6) Special twin hose with quick coupling. (7) Can be operated by remote control. (8) Cooling system inbuilt in specific models. (9) Power Pack can be available with higher flow rate. (10) Fan cooled heat exchanger optional can provide on request.