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Description
- High pressure pump for applications in closed circuits up to 530 bar
- Size 56 … 90
- Nominal pressure 400 bar
- Maximum pressure 530 bar
- Closed circuit
Features
- High power density due to very high pressure level
- Integrated boost pump for boost and pilot oil supply
- Flow direction changes when the swashplate is moved through the neutral position
- High-pressure relief valves with integrated boost function
- Boost-pressure relief valve
- Through drive for mounting additional pumps
- High total efficiency
- Swashplate design
- Compact design
- High power density
- Especially suitable for use in electronified travel drives thanks to integrated sensors
- Supports the cross-linking of motor and machine control with the travel drive
Technical data
Table of values
| Size | 56 | 71 | 90 | |||
| Displacement | Vg max | cm³ | 56 | 71 | 90 | |
| Nominal pressure | pnom | bar | 400 | 400 | 400 | |
| Maximum pressure | pmax | bar | 530 | 530 | 530 | |
| Maximum speed 1) | at Vg max | nnom | rpm | 3600 | 3300 2) | 3050 |
| Intermittent 3) | nmax | rpm | 4050 | 3500 | ||
| Flow | at Vg max and nnom | qV nom | l/min | 202 | 234 | 284 |
| Power | at qV nom and Δpnom 4) | P | kW | 134 | 156 | 189 |
| Torque | at Vg max and Δpnom 4) | M | Nm | 357 | 452 | 573 |
| Weight (approx.) | m | kg | 37 | 48 | 49 | |
| 1) | These values are valid at: - for the optimum viscosity range from vopt = 36 to 16 mm2/s - with hydraulic fluid based on mineral oils (for HF hydraulic fluids, observe the technical data in 90225) |
| 2) | Valid for a suction pressure of 0,9 bar abs. With a suction pressure of 0,8 bar abs., the maximum permissible rotational speed is 3200 rpm. |
| 3) | At Δp = ≥ 40 bar and t < 15 s |
| 4) | Δpnom = 400 bar |
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