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R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump

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R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump

R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump
R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump

Large Image :  R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump

Product Details:
Place of Origin: German
Brand Name: Rexroth
Certification: ISO
Model Number: R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: wooden box
Delivery Time: 2 weeks
Payment Terms: Western Union,D/P,T/T,D/A,L/C
Supply Ability: 100
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R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump

Description
Max. Flow​: ~117 L/min (at 2600 Rpm, Theoretical) Max. Speed​: 2600 Rpm (at Full Displacement)
Mounting Flange​: ISO 3019-2 (SAE 2-bolt) Port Size​: Code 12 (Metric Threads)
Nominal Pressure​: 280 Bar
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German made Rexroth piston pump

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AA10VSO45DFR1 piston pump

R902452707 AA10VSO45DFR1/32R-VPB12N00-S2655 German made Rexroth piston pump
Technical Specifications
Manufacturer / Series Rexroth A10VSO Series 32
Order Code R902452707
Full Model AA10VSO45DFR1/32R-VPB12N00-S2655
Pump Type Axial Piston Variable Pump (Swashplate Design, Open Circuit)
Control Type DFR1 (Pressure & Flow Control / Load Sensing)
Max. Displacement 45 cm³/rev
Nominal Pressure 280 bar
Peak Pressure 350 bar (intermittent)
Nominal Size NG 45
Rotation Direction Right-hand (R, viewed from shaft end)
Shaft Type Tapered shaft 1:5 with parallel key (DIN 6885)
Ports S (Suction), B (Pressure), L (Case Drain), X (LS Control)
Port Size Code 12 (Metric threads)
Mounting Flange ISO 3019-2 (SAE 2-bolt)
Max. Speed 2600 rpm (at full displacement)
Max. Flow ~117 L/min (at 2600 rpm, theoretical)
Seal Material FKM (Viton)
Hydraulic Fluid Mineral oils (HL, HLP), HETG, HEES, HFDU
Operating Temperature -20°C to +80°C
Weight Approx. 23.5 kg
Country of Origin Germany
Rexroth A10VSO45DFR1 piston pump technical diagram
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Frequently Asked Questions
Q1: What is the function of the "DFR1" control?
The DFR1 is a combined Pressure and Flow Controller. It provides two key functions:
  • Pressure Limiting: Acts as a pressure compensator, destrokeing the pump when system pressure reaches the set value.
  • Load Sensing (Flow Control): Automatically adjusts displacement to maintain a constant pressure differential (Δp) across a downstream orifice, providing load-independent flow control for improved energy efficiency.
Q2: What does the "VPB12N00" suffix indicate?
This code defines the mechanical configuration:
  • V: FKM (Viton) seals, offering superior chemical and temperature resistance.
  • P: Tapered shaft (1:5) with a parallel key.
  • B12: Port size code 12 (metric threads).
  • N00: No through-drive (solid shaft end, cannot mount additional pumps on the shaft).
Q3: What is the key difference between this A10VSO45 and the previously mentioned A10VSO28?
The primary difference is the displacement size:
  • A10VSO45: 45 cm³/rev, providing higher flow output (~117 L/min vs ~84 L/min at same speed).
  • A10VSO28: 28 cm³/rev, smaller size for lower flow requirements.
Both share the same DFR1 control type and Series 31 design.
Q4: What are the X and L ports used for?
  • X Port (Control): Load-Sensing (LS) Feedback. It connects to the downstream system to sense the load pressure, allowing the pump to adjust its displacement to maintain the set Δp.
  • L Port (Case Drain): Must be connected directly to the tank. It relieves internal leakage pressure to protect the shaft seal (max backpressure typically 2 bar).
Q5: Can this pump be used in a closed-loop system?
No. The A10VSO DFR1 is designed exclusively for open-circuit applications (pump → valve → actuator → tank). For closed-loop hydrostatic transmissions, you would need an A4VG or A2FM series unit.

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rexroth piston,

axial piston pump,

electric piston pump

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