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{"title":"A4VSO71EO1\/30L-PPB13N00 A4VSO71LR2\/30L-PPB25N00 German piston bar axial","imgUrl":"https:\/\/img.chinax.com\/nimg\/35\/dd\/d32d0532f1879d4c55968ff91d80-200x200-1\/a4vso71eo1_2f30l_ppb13n00_a4vso71lr2_2f30l_ppb25n00_german_piston_bar_axial_excavator_motor_rexroth_brand_new_original_warranty_fo.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A4VSO71EO1\/30L-PPB13N00 A4VSO71LR2\/30L-PPB25N00","Certifiion":"ISO9001","Place of Origin":"German"}}
{"title":"German Rexroth ISO9001 Certified Piston Pump for Mobile and Industrial Hydraulic","imgUrl":"https:\/\/img.chinax.com\/nimg\/73\/0e\/c4fe575b539956cb89a167a3ff3d-200x200-1\/german_rexroth_iso9001_certified_piston_pump_for_mobile_and_industrial_hydraulic_systems_with_clockwise_or_counterclockwise_rotati.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"A2FO107\/61R-NBD55 A2FO107\/61R-PPB05 A2FO107\/61R-VPB05 A2FO107\/61R-VSD55 A2FO107\/61L-VSD55","Certifiion":"ISO","Place of Origin":"German"}}
Approx. 2000 - 2400 rpm (Limited by suction conditions)
Rotation Direction
R (Clockwise viewed from shaft end)
Mounting Flange
ISO 3019-2 / Series 32
Shaft Type
Splined shaft (SAE standard)
Through-drive Capability
No (Code N00, cannot drive a second pump)
Port Configuration
VPB12 (SAE flange, suction and pressure ports opposite)
Seal Material
FKM (Fluoroelastomer, standard for mineral oil and HFC fluids)
Fluid Temperature
-20°C to +80°C
Recommended Viscosity
16 - 68 mm²/s (ISO VG 32-68)
Weight
Approx. 69 kg
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Model Code Breakdown
A10VSO: Axial piston variable pump (Open circuit)
100: Geometric displacement 100 cm³/rev
DRS: Control type (Pressure cut-off + Load Sensing)
32R: Series 32, Right-hand rotation
VPB12N00: Mounting and connection
VPB12: SAE flange, suction and pressure ports opposite
N00: No through-drive (This model cannot be used in a tandem configuration)
S1439: Special manufacturing code (typically refers to a specific seal/bearing package or factory batch)
Frequently Asked Questions
1. How does DRS control work?
DRS is a combined Pressure cut-off + Load Sensing (LS) control.
Pressure Cut-off: When system pressure reaches the set value (e.g., 280 bar), the pump automatically reduces its displacement to maintain constant pressure.
Load Sensing (LS): The pump automatically senses the flow required by the actuator and delivers only the matching flow, maintaining a constant pressure differential (Δp, typically 10-20 bar) between the pump outlet and the load pressure. The advantage is energy savings and reduced heat generation from overflow.
2. Can this pump be used in a tandem configuration to drive a second pump?
No.
The N00 code in the model number explicitly indies that this pump has no through-drive. The drive shaft is enclosed within the rear cover and cannot extend to drive a second pump. If you need to mount a gear pump or another piston pump in series, you must select a variant with a through-drive code, such as VPB22U....
3. What is the most common installation mistake?
Case Drain Port (L Port): Must be connected separately and directly to the tank, with a backpressure not exceeding 0.5-2 bar. It is strictly forbidden to connect it in series with the main return line (T port) or downstream of a return line filter. Doing so will cause shaft seal leakage and pump overheating.
Suction Conditions: The absolute pressure at the suction port (S port) must not fall below -0.8 bar (vacuum) to prevent cavitation. It is recommended to use a short, large-diameter suction line, and monitor the pressure drop across the suction filter.
4. What could be the cause of excessive pump noise or overheating?
Noise (Cavitation): Check for air leaks in the suction line, clogged suction filter, or oil temperature being too low (causing excessively high viscosity).
Overheating: The most common causes are excessive case drain backpressure (undersized or restricted drain line) or prolonged operation at high pressure with small displacement (high power loss).
5. How do I adjust the pressure setting on the DRS control?
Loe the pressure adjustment screw on the control head (usually with a locknut, under a cap).
Always adjust with the system running under controlled conditions and a pressure gauge installed.
Loosen the locknut.
Turn the screw clockwise to increase pressure, counterclockwise to decrease.
Tighten the locknut and recheck the setting.
6. Do I still need an external relief valve?
Yes, absolutely. While the DRS control limits pressure, it is a control function, not a safety device. You must install a separate system safety relief valve (e.g., a DB/DBW type) in the main pressure line as a backup in case of control failure.
Disclaimer: For precise installation, commissioning, and maintenance, always refer to the official Rexroth technical documentation, specifically the data sheet RE 25700 for the A10VSO Series.
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...
