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R902423294 A4VSO71DR/10R-PPB13N00 German Rexroth Axial Variable Displacement Piston Pump
Product Overview
The A4VSO71DR/10R-PPB13N00 is a heavy-duty industrial axial variable displacement piston pump from Rexroth, designed for high-pressure appliions requiring reliable performance and energy efficiency.
Technical Specifiions
Parameter egory
Parameter
Specifiion / Description
General Information
Manufacturer / Model
Rexroth, A4VSO Series (Heavy-Duty Industrial)
Part Number
R902423294
Pump Type
Swashplate Axial Piston Pump (Open Circuit)
Hydraulic Performance
Displacement
71 cm³/rev
Nominal Pressure (Continuous)
350 bar
Peak Pressure (Intermittent)
400 bar
Nominal Speed
1500 rpm (Max ~2200 rpm, requires good inlet conditions)
Control Type
DR - Pressure Control (Pressure Limiting)
Mechanical Interface
Shaft Type
Parallel Key Shaft (DIN 6885)
Rotation Direction
Clockwise (R) (viewed from shaft end)
Mounting Flange
ISO 3019-2 (4-bolt, metric)
Port Configuration
PPB13: SAE flanged ports, metric screws, Series 13 interface
Through Drive
N00: No through-drive (cannot mount auxiliary pump)
Media & Sealing
Seal Material
NBR (Standard for mineral oil)
Compatible Fluids
Mineral Oils (HL/HLP), Water Glycol (HFC)
Weight
Approx. 54 kg
Product Image
Related Models
Compatible A4VSO Series Models
A4VSO40DP/10R-PZB13N00
A4VSO71DRG/10R-PPB13K99
A4VSO250HSE/30R-PZB13K34
A4VSO71DRG/10R-PPB13K24
A4VSO125EO1/30R-PPB13N00
A4VSO71DRG/10R-PPB13K04
A4VSO40EM1039/10R-PPB13N00
A4VSO500DS1E/30W-PZH13N000N
A4VSO71DFR1/10R-PZB13N00
A4VSO40DR/10L-PPB13N00
Frequently Asked Questions
Q1: What is the main difference between the A4VSO and A10VSO series?
The A4VSO is a heavy-duty industrial pump designed for a continuous operating pressure of 350 bar. It features a more robust bearing and construction, making it suitable for high-pressure appliions like metal forming and injection molding. The A10VSO series is typically used for 280 bar in general mobile or industrial appliions.
Q2: How does the DR control work?
DR is a pressure-compensating control. When system pressure is below the set value, the pump delivers full flow at maximum displacement (71 cc). Once pressure reaches the set point (adjusted via the screw on the control cover), the pump automatically reduces the swashplate angle, delivering only the minimal flow needed to maintain that pressure (to compensate for leakage), thereby saving energy.
Q3: Can I mount a gear pump on the through-drive of this model?
No. The suffix N00 explicitly indies no through-drive capability. The shaft does not protrude from the rear cover. If an auxiliary pump (e.g., a charge pump) is required, you must select a model with a through-drive suffix like K01 or K02.
Q4: What are the suction (inlet) requirements?
At 1500 rpm, the absolute pressure at the suction port (S) should be ≥ 0.8 bar (approx. -0.2 bar gauge/vacuum). If the speed is increased to 2200 rpm, the inlet must be pressurized (e.g., using a boost pump) to prevent severe cavitation and pump damage.
Q5: How do I adjust the pressure setting?
Turn the large hex screw on the DR control cover (usually with a locknut). Clockwise rotation increases the pressure. It is recommended to adjust under load with the system at the desired pressure. Always tighten the locknut securely after setting.
Q6: How should the case drain (L port) be connected?
The case drain port (L) must be connected directly to the reservoir via a dedied line with zero backpressure (maximum allowable is typically 0.5 bar). A blocked or pressurized drain line will immediately damage the shaft seal, causing oil leakage.
Q7: Can I use Water Glycol (HFC) fluid with this pump?
Yes. The standard NBR seals are compatible with Water Glycol (HFC). However, note that the pump's rated pressure and speed may need to be derated. Refer to the Rexroth alog for the specific fluid compatibility and derating tables.
Q8: What is the required fluid cleanliness level?
The requirement is very high. Fluid cleanliness must be at least NAS Class 9 (ISO 4406 18/16/13) or better. A 10 μm high-pressure filter with βₓ≥75 is strongly recommended on the pressure line. Contamination is the primary cause of wear on the piston/slipper assembly.
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...
