-Compact automatic three stage flow,max efficiency.-Applicable on both one or two wrenches simultaneously.-Aluminum oil tank with oil gauge and thermometer.-Have Φ100 high pressure gauge.-Infinitely variable pressure adjustment between 40~700 bar.-With the high efficiency radiator the pump can work 24 dirtct hours.-Can change the motor to fit the different current around the world-You could change the export components(FP-4), driven four wrenches at the same time.