The basic circuits of the hydraulic system include power source system (quantitative pump system, pump accumulator system, variable pump system, multi-stage constant pressure power source system, stepless constant pressure power source system),pressure building circuit (pressure reducing valve circuit, remote pressure reducing valve circuit, proportional pressure reducing valve circuit), boost circuit (bipolar boost cylinder circuit, two-stage bidirectional boost cylinder circuit), pressure maintaining circuit (oil pump pressure maintaining circuit, accumulator pressure maintaining circuit) Pressure relief circuit, support circuit, speed control circuit, speed increase circuit, constant speed circuit, braking circuit, synchronization circuit (mechanical synchronization, diverter valve synchronization, cylinder series synchronization, diverter cylinder synchronization, diverter motor synchronization, flow valve, rectifier bidirectional synchronization, variable synchronous motor control, electro-hydraulic proportional directional valve synchronization control) Sequential circuit (pressure sequence valve, pressure relay solenoid valve, mechanical directional valve, fast slow fast, priority valve), oil replenishment circuit, spool valve function circuit, variable pump system, press synchronization control, bending machine synchronization control.

















