The A4CSG axial piston pump is a variable displacement pump in a tilting plate design for closed-loop hydraulic drives. The flow rate is proportional to the drive speed and displacement. The flow rate can be continuously varied by changing the tilt plate. The pump incorporates the supply pump required for closed-loop operation and the corresponding valve technology. A common auxiliary pump is used for supply and EP variable speed control. Compact design with an extremely short length. Good power-to-weight ratio, low noise, long service life and high performance. The new EP electrohydraulic variable speed control has a proportional solenoid valve and reset function in the event of a power failure.
This manual describes the A4CSG compact axial‑piston unit, including its nominal sizes (250 mm, 355 mm, 500 mm, 750 mm) and operating ranges. It details hydraulic fluid requirements, viscosity ranges, pressure limits and performance data such as flow, power and torque.
Installation, mounting and commissioning instructions are provided, together with safety warnings, bearing‑wash procedures, filter options and torque‑tightening recommendations. The document also lists the available variators and their functions. This manual is written in Spanish.
| Tamaño nominal (mm) | 250, 355, 500, 750 |
|---|---|
| Presión nominal | 350 bar |
| Presión máxima | 400 bar |
| Viscosidad de servicio (mm²/s) | 6 – 36 |
| Velocidad de rotación máxima (rpm) | 2200 (250 mm), 2000 (355 mm), 1800 (500 mm), 1600 (750 mm) |
The nominal pressure is 350 bar.
The maximum pressure is 400 bar.
Use a service viscosity between 6 cSt and 36 mm²/s.