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BOSCH REXROTH
R902557653

  • BOSCH REXROTH
  • Material:R902557653
  • Model:PA4CSG500EPG/33R-VZH85F994N

Due to extremely high demand, please call 877-366-7226 for availability

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth P A4CSG 500 EPG /33R-VZH85F994N-S2703 (R902557653) is a high-efficiency, robust high-pressure axial piston pump designed for use in closed circuit applications. This particular model is characterized by its integrated boost pump which ensures the supply of boost and pilot oil, enhancing the overall reliability and performance of the system. It comes equipped with integrated pressure relief valves that provide protection for boost, control, and high-pressure circuits, thus ensuring safe operation under various conditions. The pump is built to endure with a very long service life and features an integrated flushing valve that contributes to its maintenance efficiency. Its through-drive capability allows for the mounting of additional pumps up to the same nominal size, which can be beneficial in complex hydraulic systems requiring multiple pump configurations. One of the key attributes of this Bosch Rexroth pump is its smooth flow direction changeover as the swashplate moves through the neutral position. The drive shaft can handle both axial and radial loads effectively, which makes it suitable for heavy-duty operations. The P A4CSG 500 EPG /33R-VZH85F994N-S2703 operates with low noise levels contributing to a more pleasant working environment. Additionally, this model includes a visual swivel angle indicator that provides immediate feedback on the swashplate position, allowing for precise control over the output flow and pressure. The short control response times enable quick adjustments to system demands, further enhancing operational efficiency. With a nominal pressure rating of bar and a maximum pressure capacity of bar in its metric version, this pump is designed to meet demanding performance requirements while maintaining high total efficiency thanks to its swashplate design.

Table of values

Size

250 355 500 750

Displacement
geometric, per revolution

Vg max

cm³

250 355 500 750

Nominal pressure

pnom

bar

350 350 350 350

Maximum pressure

pmax

bar

400 400 400 400

Maximum speed

at Vg max

nnom

rpm

2200 2000 1800 1600

Flow

at Vg max and nnom

qV nom

l/min

550 710 900 1200

Power

at qV nom and Δpnom 1)

P

kW

321 414 525 700

Torque

at Vg max and Δpnom

M

Nm

1391 1976 2783 4174

Weight (approx.)

m

kg

214 237 350 500
1) Δpnom = 350 bar

Pilot-pressure related proportional control

HD

technical illustration-R902557653-Integrated boost pump for boost and pilot oil supply Integrated pressure relief valves for boost-, control- and high-pressure Robust pump with very long service life Integrated flushing valve Through drive for mounting of further pumps up to same nominal size Flow direction changes smoothly when the swashplate is moved through the neutral position Axial and radial load capacity of drive shaft Low operating noise Visual swivel angle indicator Short control response times High total efficiency Swashplate design

Pilot-pressure related proportional control

HD

Available for A4VSO, A4VSG and A4CSG Control is pilot-pressure related Different pilot-pressure ranges available Power control, pressure control and electrical pilot pressure supply optional Standard spring-centering of the stroking cylinder

Data sheet

Spare parts & repair

Electrohydraulic control with proportional solenoid

EP

technical illustration-R902557653-Integrated boost pump for boost and pilot oil supply Integrated pressure relief valves for boost-, control- and high-pressure Robust pump with very long service life Integrated flushing valve Through drive for mounting of further pumps up to same nominal size Flow direction changes smoothly when the swashplate is moved through the neutral position Axial and radial load capacity of drive shaft Low operating noise Visual swivel angle indicator Short control response times High total efficiency Swashplate design

Electrohydraulic control with proportional solenoid

EP

Available for A4VSG and A4CSG Electro-proportional control by a current signal High control accuracy Resets to neutral position in the event of a signal failure With manual override

Data sheet

Spare parts & repair

Electrohydraulic control systems

HSx, HMx, EOx

technical illustration-R902557653-Integrated boost pump for boost and pilot oil supply Integrated pressure relief valves for boost-, control- and high-pressure Robust pump with very long service life Integrated flushing valve Through drive for mounting of further pumps up to same nominal size Flow direction changes smoothly when the swashplate is moved through the neutral position Axial and radial load capacity of drive shaft Low operating noise Visual swivel angle indicator Short control response times High total efficiency Swashplate design

Electrohydraulic control systems

HSx, HMx, EOx

Available for A4VSO, A4VBO, A4VSG and A4CSG Electrohydraulic control with servo, proportional and control valve Digital electrohydraulic control systems with amplifier Control of swivel angle, pressure and power (HS5P) Usable as a special version in mooring operation (overcenter)

Data sheet

Spare parts & repair