Product Overview
The Rexroth A A10VSO 28 DFR1/31R-VPA12N00 is an open-circuit, swashplate-type variable axial piston pump used in industrial hydraulic systems. It varies displacement to match system demand, making it suitable for hydraulic power units, machine tools, presses and production machinery.
The size 28 designation identifies the nominal displacement class, while DFR1 identifies the pressure and flow control configuration. Material Number R910916805 and the complete type code should stay together throughout an RFQ and replacement review.
Before purchase, compare the controller, rotation, shaft, flange, ports, installation dimensions and operating requirements with the original pump and approved hydraulic documentation.
Confirmed Specifications
| Brand | Rexroth |
|---|---|
| Complete Type Code | A A10VSO 28 DFR1/31R-VPA12N00 |
| Material Number / MNR | R910916805 |
| Product Family | A10VSO variable-displacement axial piston pump |
| Series | 31 |
| Nominal Size / Displacement Marking | 28 cm3 |
| Controller Code | DFR1 |
| Rotation | Clockwise symbol on nameplate |
| Speed Marking | 1500 min-1 |
| DR Pressure Marking | 280 bar |
| FR Pressure Marking | 14 bar |
| Mass Marking | 17.8 kg |
| Manufacturing Date Code | 26W02 |
| Country Marking | Made in China |
Key Features
- Open-circuit swashplate design
- Complete A A10VSO 28 DFR1/31R-VPA12N00 type code
- Material Number R910916805
- Variable-displacement axial piston pump design
- Size 28 nominal displacement class
- DFR1 controller configuration code
- Clockwise rotation configuration
- Designed for industrial hydraulic power systems
Typical Applications
- Industrial hydraulic power units
- Machine tools and production machinery
- Presses and material-forming equipment
- Factory automation hydraulic systems
- Hydraulic pump maintenance and replacement
- Mixed industrial MRO spare-parts orders
These are typical sourcing contexts only. Final pump selection must be based on the hydraulic system and equipment requirements.
Compatibility / Selection Notice
Do not order from A10VSO 28 or DFR1 alone. Compare the complete type code, Material Number R910916805, rotation, shaft, flange, ports, controller and installation dimensions with the existing pump or an approved drawing.
Pressure and speed values on this page are identification references for this supplied configuration. Final system suitability, operating limits, hydraulic fluid requirements and commissioning should follow applicable Rexroth technical documentation and qualified engineering review.
Information Required Before Ordering
- Clear nameplate photo showing the complete type code
- Material Number / MNR
- Old pump photos from every side
- Machine brand, model and hydraulic function
- Required pressure, flow and operating speed
- Rotation direction
- Shaft type and dimensions
- Port thread, size and orientation
- Flange and mounting dimensions
- Required quantity and destination
MAVORIX Sourcing Support
MAVORIX acts as an independent China-side sourcing and supplier coordination partner. Related requests can connect with our industrial sourcing, factory spare parts, industrial machinery and contact workflows.
- Pump label and complete model-code checking
- Supplier sourcing and quotation coordination in China
- Shaft, port and mounting-information follow-up
- Supplier-side product and packing photo collection
- Exact-code or proposed-alternative comparison
- Consolidation with valves, seals, sensors and other MRO parts
- Export packing and shipment coordination