PZS Series Piston Pump
- Half-cylindrical swash plate and 11 pistons for low noise and low pulsation.
- Spherical valve plate for high efficiency.
- Multiple string option with our IPH series inscribed gear pump.

Features
Application
Main text
PZS Series Piston Pump
- Ideal for a wide range of uses, as hydraulic source for general industrial machinery such as forging/forming equipment.

- Constant horsepower control type and load sensing control type also available in addition to the control options listed in the catalog. For details, please contact us.
Specifications
Main text
PZS Series Piston Pump
Type | Capacity (cm3/rev) |
Maximum working pressure (MPa) |
Rotational speed (min-1) |
Mass (kg) |
|
---|---|---|---|---|---|
Minimum | Maximum | ||||
PZS-3B | 70 | 28 | 500 | 1800 | 37 |
PZS-4B | 100 | 28 | 500 | 1800 | 58 |
PZS-5B | 130 | 25 | 500 | 1800 | 86 |
PZS-6B | 180 | 25 | 500 | 1800 | 123 |
PZS-6B | 220 | 25 | 500 | 1500 | 126 |
Various control options enable circuit simplification and energy saving.
Control system | Symbol | Features | Characteristics |
---|---|---|---|
Pressure compensation type (manual) |
N | Discharge amount automatically decreases to maintain the set pressure when discharge pressure reaches the value specified in the compensator. Remote control is also available using the attached pilot port. | ![]() |
2-pressure, 2-flow control type |
NQ | Discharge pressure can change by two levels through the sequence valve embedded in the pump; therefore, one unit can perform conventional high/low pressure control and circuit energy can be saved. | ![]() |
Solenoid cutoff control type |
RS | Solenoid valve for unloading is mounted on the pressure compensation type model, with the aim of minimizing energy loss when hydraulic pressure is not necessary. | ![]() |
2-pressure control type |
WS | Two types of pressure compensation are obtained by turning on/off the solenoid valve embedded in the pump. The two kinds of output can be controlled while maintaining a constant actuator speed. | ![]() |
2-pressure, 2-flow control type with solenoid cutoff |
RQS | Unload function is added to the 2-pressure, 2-flow control type, to enable unloading with the solenoid valve embedded in the pump when hydraulic pressure is not necessary. | ![]() |
2-cutoff control type | CS | Two kinds of pressure and flow characteristics can be obtained with the solenoid valve embedded in the pump and the discharge control mechanism. | ![]() |