Rexroth A2FE250 - Heavy-Duty Fixed Motor of the A2FE Family
250 cm³ displacement · 350 bar nominal · sustained high-torque service
250
cm³/rev Displacement
400
bar Peak Pressure
~1,393
N·m Torque @ 350 bar
2,000
rpm Max Speed (typical)
Product Introduction
The Bosch Rexroth A2FE250 is the largest standard displacement of the A2FE bent-axis fixed motor family. It is engineered for sustained high-torque service in shredders, heavy rotary drives, mining conveyors and marine winches - applications where downtime is expensive and output must stay predictable hour after hour.
Its fixed displacement architecture keeps the hydraulic system simple: with constant flow, shaft speed follows directly, and torque scales with pressure up to the 400 bar peak rating. This page summarizes the technical parameters, advantages, selling points, industries, equipment and frequently asked questions for the A2FE250.
Technical Specifications
| Parameter | Value |
| Model | Bosch Rexroth A2FE250, fixed displacement motor |
| Displacement | 250 cm³/rev |
| Design | Axial piston, bent-axis, fixed displacement |
| Nominal pressure | 350 bar |
| Maximum pressure | 400 bar (peak) |
| Max. speed | ~2,000 rpm (typical, pressure-dependent) |
| Theoretical torque @ 350 bar | ~1,393 N·m |
| Case drain | Required (recommended) for continuous duty |
| Direction of rotation | Reversible |
| Service class | Continuous heavy-duty |
Speed and torque figures are typical catalog values (RE 91053). Verify the exact numbers for your order code before final design.
Core Advantages
1Extreme Torque Output
The highest torque class in the family, sized for the heaviest rotary loads.
2Continuous-Duty Design
Built to sustain high loads for long operating hours without derating.
3Rugged Construction
Robust housing and bearings resist shock, vibration and contamination.
4Low Maintenance Cost
Simple fixed design means fewer wearing parts and longer service intervals.
5Project-Level Partnership
Sizing, integration and commissioning support for machine builders.
Key Selling Points
01 Sustained torque delivery for the toughest rotary applications.
02 Predictable speed behavior under fluctuating load.
03 Robust housing that protects against dust and impact.
04 OEM-style documentation package for machine builders.
05 Dedicated logistics for heavy units to any destination.
Application Industries
Application Equipment
▸ Shredder rotors and feed units
▸ Large rotary tables and indexers
▸ Mill and crusher drives
▸ Tunnel conveyor head drives
▸ Marine winch drums
▸ Heavy industrial mixers
Frequently Asked Questions
Q1. What torque can the A2FE250 produce?
The theoretical torque is about 1,393 N·m at 350 bar. Effective torque depends on mechanical efficiency, typically above 90% for this design.
Q2. Is it suitable for continuous heavy duty?
Yes, it is designed for sustained high-load service. Ensure adequate cooling and a properly sized case drain line.
Q3. Do you supply couplings or adaptors?
Yes, we can supply or advise on couplings, bell housings and adaptor plates for your drive train.
Q4. How does it differ from smaller A2FE sizes?
It shares the bent-axis fixed displacement architecture, scaled up for much higher displacement and torque, with a larger mounting footprint.
Q5. Are spare parts available?
Full spare part support follows the catalog structure; commonly requested parts are kept in stock.
Q6. Do you offer commissioning support?
Yes - remote guidance, installation instructions and start-up checklists are included with project orders.
Q7. How are heavy units packed for export?
Units are crated with export-grade protection and lifting provisions; seaworthy packing is available.
Q8. Can several motors be combined for higher torque?
Systems with multiple motors or gearbox integration are possible; our engineers will size the combination for your application.
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