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{"title":"Rexroth Original German Quantitative High-Pressure Hydraulic Gear Pump with 28cc","imgUrl":"https:\/\/img.chinax.com\/nimg\/18\/b4\/95207730f3b799eff1119aca8867-200x200-1\/rexroth_original_german_quantitative_high_pressure_hydraulic_gear_pump_with_28cc_140cc_displacement.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"PGH4-2X\/025LE11VU2 PGH4-2X\/025LR11VU2 PGH4-2X\/032RE11VU2 PGH4-2X\/032RE11VE4 PGH4-2X\/032RR11VU2","Certifiion":"ISO","Place of Origin":"German"}}
The A4VSO71 series represents Rexroth's high-performance variable displacement axial piston pumps, designed for demanding hydraulic appliions. These German-engineered pumps deliver reliable operation with features including long service life, low noise operation, and excellent power-to-weight ratio.
The A4VSO71 series includes multiple configurations with working ports 13 and 25, flat key splines P and Z, seals P and V, and various control modes:
A4VSO71DR/30R-PPB13N00
A4VSO71DR/30R-PPB25N00
A4VSO71DR/30R-PZB13N00
A4VSO71DR/30R-PZB25N00
A4VSO71DR/30R-VPB13N00
A4VSO71DR/30R-VPB25N00
A4VSO71DR/30R-VZB13N00
A4VSO71DR/30R-VZB25N00
A4VSO71LR2G/30R-PPB13N00
A4VSO71LR2G/30R-PPB25N00
A4VSO71LR2G/30R-PZB13N00
A4VSO71LR2G/30R-PZB25N00
A4VSO71LR2G/30R-VPB13N00
A4VSO71LR2G/30R-VPB25N00
A4VSO71LR2G/30R-VZB13N00
A4VSO71LR2G/30R-VZB25N00
A4VSO71DFR/30R-PPB13N00
A4VSO71DFR/30R-PPB25N00
A4VSO71DFR/30R-PZB13N00
A4VSO71DFR/30R-PZB25N00
A4VSO71DFR/30R-VPB13N00
A4VSO71DFR/30R-VPB25N00
A4VSO71DFR/30R-VZB13N00
A4VSO71DFR/30R-VZB25N00
A4VSO71DRG/30R-PPB13N00
A4VSO71DRG/30R-PPB25N00
A4VSO71DRG/30R-PZB13N00
A4VSO71DRG/30R-PZB25N00
A4VSO71DRG/30R-VPB13N00
A4VSO71DRG/30R-VPB25N00
A4VSO71DRG/30R-VZB13N00
A4VSO71DRG/30R-VZB25N00
Additional Models
AA4VSO250LR2/22R-PZB13N00
AA4VSO71DRG/10R-PPB13N00-SO318
AA4VSO250LR2G/30R-PZB13N00
AA4VSO40LR2D/10R-PPB13G40
AA4VSO125DR/22R-VPB13N00-SO292
AA4VSO40DR/10L-PZB13KB3-SO127
AA4VSO250LR2/22R-PPB13N00-SO5
AA4VSO71DRG/10R-PPB13K68
AA4VSO250DR/30R-PPB25U33-S2369
AA4VSO180DR/30R-FPB13K01
Frequently Asked Questions
1. What is the fundamental working principle of the A4VSO series pump?
The A4VSO series is a swashplate-type axial piston pump designed for open-circuit systems. Its flow output is proportional to the input drive speed and its displacement volume. The displacement is infinitely variable by adjusting the angle of the swashplate. It's known for its excellent suction characteristics, low noise, long service life, and high power-to-weight ratio. Multiple control options are available to meet various system requirements.
2. What are the common control methods for the A4VSO pump?
The A4VSO series offers a wide range of variable control methods. The most commonly used include:
DR/DRG: Pressure Control (Constant Pressure)
LR: Constant Power Control (Hyperbolic)
EO/EO2: Electroproportional Control
Other available controls include FR (Flow Control), MA (Manual Control), EM (Electric Motor Control), HW/HM/HS/HD (Various Hydraulic Controls), and DS (Secondary Control for speed sensing).
3. How does the DR Pressure Control (Pressure Cut-Off) work?
The DR control maintains a constant system pressure by changing the swashplate angle. When the system pressure reaches the spring-set value on the DR valve, the control mechanism acts to reduce the pump's displacement, delivering only the flow required to maintain the set pressure. This functionality is sometimes referred to as "Pressure Cut-Off" in some pump literature. It's important to note that a system safety valve is still essential because the DR control's response is relatively slow compared to sudden pressure shocks; the safety valve handles transient pressure spikes.
4. What is the difference between DRG and DP control types?
Both DRG and DP are forms of constant pressure control, but they are designed for different appliions.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
