Rexroth A22VG45 & A20VG45 Pump | A22VG045EP1P | R992001322 | Loader Hydraulic Piston Pump
| Model Number | A20VG, A22VG, A22VG045, A20VG045, A22VG045HT, R992001322 A22VG045EP1P0100/40BRNB2XX3UB2S5A-S |
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Product Description
Rexroth A22VG45 & A20VG45 Series Tandem Variable Piston Pumps for Loaders
Product Overview: The Rexroth A22VG45 and A20VG45 series are high-performance axial piston tandem pumps specifically engineered for hydrostatic closed-circuit transmissions. Serving as the primary power source for Skid Steer Loaders, compact wheel loaders, and mobile machinery, this series features a dual-pump configuration. Featured models like the A22VG045EP1P… (Part No. R992001322) utilize advanced EP (Electric Proportional) control to independently and precisely modulate speed and torque for both drive sides. This ensures exceptional handling smoothness and peak fuel efficiency across demanding terrains.
Key Technical Advantages:
Integrated Tandem Design: Two independent variable pumps on a single drive shaft provide a compact footprint, maximizing space in constrained engine compartments.
Advanced EP Electric Proportional Control: Delivers lightning-fast response times, translating electronic joystick signals into instantaneous displacement changes for smooth starts and precise steering.
High-Pressure Traction Capability: Rated for continuous operation at 300-350 Bar with peak capabilities up to 400 Bar, providing the massive tractive force needed for heavy-duty climbing and rough terrain.
Integrated Charge Pump & Valve Groups: Features a built-in charge pump, high-pressure relief valves, and charge relief valves to simplify external plumbing and enhance overall system reliability.
100% OEM Standard Compatibility: Manufactured to strict Rexroth Series 40 specifications, ensuring mounting flanges, splined shafts, and electrical connectors align perfectly for a seamless “drop-in” replacement.
Detailed Models & Parameters:
Core Series: Rexroth A22VG / A20VG Series 40.
Representative Model: A22VG045EP1P0100/40BRNB2XX3UB2S5A-S.
Key Part Number: R992001322.
Displacement: 45.0 cm³/rev (per section).
Pressure Ratings: Rated at 300 Bar (4350 PSI) continuous; Peak capability up to 350-400 Bar.
Control Type: EP1P (Electric Proportional Control with Pressure Cut-off).
Target Applications: Skid Steer Loaders, harvester drive systems, pavers, and mobile machinery hydrostatic chassis.


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