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Poocca Hydraulic (Shenzhen) Co., Ltd.
Poocca Hydraulic (Shenzhen) Co., Ltd.
Axial variable Piston Pump PZ/PZS
PZS series piston pump High pressure, high reliability deliver the perfect combination of high pressure (28MPa {286kgf/cm2}maximum) and high reliability. Hydraulic device energy efficiency is ensured because variable volume capabilities provide the means to keep the discharge rate to the desired level.
The PZ Series load sensitive variable piston pump employs the semi-cylindrical swash plate that is part of the basic technology used by the PVS series variable piston pump. To this it adds a hydrostatic bearing mechanism, valve plate, and other noise reducing mechanisms for operation that is even quieter than that of PVS Series pumps.
Name | PA-PZ/PZS Series Variable Piston Pumps |
Series | Series PZ/PZS |
Sizes | 35 45 70 100 130 180 220 |
Nominal Pressure | 210 bar |
Maximum Pressure | 250 bar |
Operation Mode | Open Circuit |
Technical parameters PA-PZS series | |||||||||
Model No. | Pump Capacity | Rated Voltage MPa | Maximum Working Pressure MPa | Pressure Adjustment Range MPa | Revolution Speed min −1 | Weight kg | Fixed Discharge Pump (Note 1) | ||
Capacity | Pressure MPa {kgf/cm2} | ||||||||
Min. | Max. | PZS | |||||||
PZS-3B-70* 1-10 | 70 | 21 | 28 | 2 to 7 {20.4 to 71.4} | 500 | 1800 | 37 | 3.6 to 15.8 | 21 |
3 | 2 to 21 {20.4 to 214 } | ||||||||
4 | 2 to 28 {20.4 to 286 } | ||||||||
PZS-4B-100* 1-10 | 100 | 2 to 7 {20.4 to 71.4} | 58 | ||||||
3 | 2 to 21 {20.4 to 214 } | ||||||||
4 | 2 to 28 {20.4 to 286 } | ||||||||
PZS-5B-130* 1-10 | 130 | 25 | 2 to 7 {20.4 to 71.4} | 86 | 3.6 to 32.3 | ||||
3 | 2 to 21 {20.4 to 214 } | ||||||||
4 | 2 to 25 {20.4 to 255 } | ||||||||
PZS-6B-180* 1-10 | 180 | 2 to 7 {20.4 to 71.4} | 123 | 3.6 to 63.9 | |||||
3 | 2 to 21 {20.4 to 214 } | ||||||||
4 | 2 to 25 {20.4 to 255 } | ||||||||
PZS-6B-220* 1-10 | 220 | 2 to 7 {20.4 to 71.4} | 126 | 3.6 to 63.9 | |||||
3 | 2 to 21 {20.4 to 214 } | ||||||||
4 | 2 to 25 {20.4 to 255 } |
Model No. | Pump Capacity | Maximum Working Pressure MPa | Pressure Adjustment Range MPa | Flow Control | Revolution Speed min −1 | Weight kg | Fixed Discharge Pump (Note 1) | ||
Capacity | Pressure MPa | ||||||||
Min. | Max. | PZ | |||||||
PZ-2B-*- 35E1A-11 | 35 | 21 | 2 to 7(20.4 to 71.4) | 1 to 63 | 600 | 2000 | 36 | 3.6 to 8.18 | 21 |
2 | 2 to 14(20.4 to 143) | ||||||||
3 | 2 to 21(20.4 to 214) | ||||||||
PZ-2B-*- 45E1A-11 | 45 | 14 | 2 to 7(20.4 to 71.4) | 1 to 80 | |||||
2 | 2 to 14(20.4 to 143) | ||||||||
PZ-3B-*- 70E1A-10 | 70 | 21 | 2 to 7(20.4 to 71.4) | 1 to 126 | 1800 | 60 | 3.6 to 15.8 | ||
2 | 2 to 14(20.4 to 143) | ||||||||
3 | 2 to 21(20.4 to 214) | ||||||||
PZ-4B-*-100E1A-10 | 100 | 21 | 2 to 7(20.4 to 71.4) | 1 to 180 | 76 | ||||
2 | 2 to 14(20.4 to 143) | ||||||||
3 | 2 to 21(20.4 to 214) | ||||||||
PZ-5B-*-130E1A-10 | 130 | 21 | 2 to 7(20.4 to 71.4) | 3 to 234 | 100 | 3.6 to 32.3 | |||
2 | 2 to 14(20.4 to 143) | ||||||||
(Note 2) 3 | 2 to 21(20.4 to 214) | ||||||||
PZ-6B-*-180E1A-20 | 180 | 21 | 2 to 7(20.4 to 71.4) | 3 to 324 | 160 | 3.6 to 63.9 | |||
2 | 2 to 14(20.4 to 143) | ||||||||
3 | 2 to 21(20.4 to 214) | ||||||||
PZ-6B-*-220E1A-20 | 220 | 21 | 2 to 7(20.4 to 71.4) | 3 to 330 | 1500 | 162 | |||
2 | 2 to 14(20.4 to 143) | ||||||||
3 | 2 to 21(20.4 to 214) |
The PA-PZ/PZS Series pump body houses an electrohydraulic proportional control valve, compensator, and surge cutoff valve, which eliminates the need for superfluous piping.
The electro-hydraulic proportional control valve uses the proven force feedback system for improved hysteresis, repeatability, and response.
Low noise, low vibration
operation The semi-cylindrical swash plate of the PVS series provides high support and rigidity, making it possible to increase the number of pistons (from nine to 11) and equip optimal valve plates, all of which make low-noise operation possible.
High reliability, long life
O-ring seals used for mating surfaces eliminate worries about oil leaks. A spherical valve plate maintains optimal hydraulic pressure balance, for stable operation across a wide range and better contamination resistance characteristics
A wide range of possible
applications In addition to use as a stand-alone pump, a PVS Series pump can be combined with another IP pump in a wide range of possible applications.