Rexroth A4VG_32 Series Variable Piston Pumps

A4VG_32 Series High Pressure Piston Pumps Specifications 28、40、56、71、90、125、180、250 Working pressure Nominal pressure 40 MPa, peak pressure 45 MPa Control mode: NV type, no control device DG-hydraulic control, direct control EZ-Electric Two-Point Control, Switched Electromagnet HD-hydraulic control, related to pilot pressure HW-Hydraulic Control, Mechanical Servo EP-Electrical Control with Proportional Electromagnet DA - Hydraulic control, related to deceleration Characteristics _Swashplate Axial Plunger Variable Pump for Closed Loop Hydrostatic Transmission _Flow rate is proportional to driving speed and displacement and can be variable steplessly. _The flow rate increases from zero to its maximum with the swashplate swing angle. _The liquid flow direction can be changed smoothly by making the swashplate swing over the middle. _Variable modes that are easily matched with various control and regulation systems; The pump is equipped with two relief valves at the high pressure oil side to protect the hydrostatic transmission (pump and motor) from overloading. High pressure relief valve also has the function of filling valve. _Built-in auxiliary pumps are used as refueling pumps and control pumps. _The maximum filling pressure is limited by a built-in filling relief valve. _Full series with built-in pressure shut-off valves;