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Nachi PZS Series Piston Pump

Made in: Japan
Manufacturer: NACHI
Model: PZS Series (PZS-3B, PZS-4B, PZS-5B, PZS-6B)

Features

  • 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.

Application

  • Ideal for a wide range of uses, as hydraulic source for general industrial machinery such as forging/forming equipment.

PZS Series Piston Pump

  • 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

TypeCapacity
(cm3/rev)
Maximum working pressure
(MPa)
Rotational speed
(min-1)
Mass
(kg)
MinimumMaximum
PZS-3B7028500180037
PZS-4B10028500180058
PZS-5B13025500180086
PZS-6B180255001800123
PZS-6B220255001500126

Various control options enable circuit simplification and energy saving.

Control systemSymbolFeaturesCharacteristics
Pressure
compensation
type (manual)
NDischarge 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.Pressure compensation type (manual)
2-pressure,
2-flow control
type
NQDischarge 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.2-pressure, 2-flow control type
Solenoid cutoff
control type
RSSolenoid valve for unloading is mounted on the pressure compensation type model, with the aim of minimizing energy loss when hydraulic pressure is not necessary.Solenoid cutoff control type
2-pressure
control type
WSTwo 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 control type
2-pressure,
2-flow control
type with
solenoid cutoff
RQSUnload 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-pressure, 2-flow control type with solenoid cutoff
2-cutoff control typeCSTwo kinds of pressure and flow characteristics can be obtained with the solenoid valve embedded in the pump and the discharge control mechanism.2-cutoff control type

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