Product Overview
The A6VM200EP6D1P001G/65MWV0S4A210F-0 (Material No. R902276877) is a bent axis axial piston variable motor from Bosch Rexroth’s A6VM Series 65, with a nominal displacement of 200 cm³/rev, designed for hydrostatic drives in both open and closed circuits. The motor features a bent axis design with high power-to-weight ratio, excellent starting characteristics, a wide displacement adjustment range, and high reliability, capable of meeting diverse requirements from high speed to high torque.
The core control method is EP6 electric proportional control with a swivel angle sensor, enabling precise and dynamic speed regulation. EP6 control allows continuous adjustment of motor displacement via electrical signals, suitable for travel drive and industrial applications requiring precise speed and torque control. The motor incorporates an integrated pressure relief valve (set at 210 bar), providing overload protection for enhanced operational safety.
Model code breakdown: A6VM = bent axis axial piston variable motor; 200 = nominal displacement 200 cm³/rev; EP6 = electric proportional control (with swivel angle sensor); D1 = control device version; P001 = factory setting parameters; G = DIN 5480 splined shaft; 65 = Series 65; MWV0S4 = mounting and port configuration; A210 = integrated relief valve (set at 210 bar); F-0 = variant identifier.
The A6VM200 shares the A6VM series design architecture and control philosophy with other models in the range, including the A6VM115, A6VM170, A6VM215, A6VM80, and A6VM107, collectively forming a complete product matrix covering displacement ranges from 28 to 1000 cm³/rev.
As a drop-in replacement, the motor is fully compatible with the OEM Rexroth specification in mounting interface, control method, and performance characteristics. Every unit undergoes 100% simulation-based testing prior to shipment, covering displacement calibration, pressure holding, control response, and internal leakage.
Technical Specifications
All parameters below are based on Bosch Rexroth official technical documentation, verified supplier technical pages, and industry-standard specifications:
A6VM200EP6D1P001G/65MWV0S4A210F-0 Technical Specifications:
Complete Model: A6VM200EP6D1P001G/65MWV0S4A210F-0
Material Number (MNR): R902276877
Brand: Bosch Rexroth
Product Series: A6VM series, Series 65
Product Type: Bent axis axial piston variable motor
Nominal Displacement (Vg max): 200 cm³/rev
Displacement Adjustment Range: 0 – 200 cm³/rev (stepless variable)
Nominal Pressure: 400 bar
Peak Pressure: 450 bar
Maximum Speed (at Vg max): 2900 rpm
Maximum Speed (at Vg min): 4600 rpm
Maximum Flow: 580 L/min
Theoretical Torque (Δp = 400 bar): 1273 N·m
Control Method: EP6 electric proportional control with swivel angle sensor
Control Device: D1 control version
Integrated Relief Valve: A210, set at 210 bar
Direction of Rotation: Reversible
Drive Shaft: G — DIN 5480 splined shaft
Mounting Flange: ISO 3019-2 (SAE J744 — 152-4 (C)) 4-hole
Working Ports: U — SAE flange ports, side, opposite
Sealing Material: W — NBR (Perbunan)
Filtration Feature: VOS4 — special version for open circuit, without filter in high pressure circuit
Circuit Type: Open and closed circuits
Hydraulic Fluid: Mineral oil (ISO 11158 / DIN 51524), HFA, HFB, HFC
Viscosity Range: 10 – 1000 mm²/s (15 – 45 mm²/s recommended)
Fluid Temperature Range: -30°C to +90°C
Cleanliness Requirement: ISO 4406 minimum 20/18/15
Weight: Approx. 78 – 80 kg
Mounting Position: Any position (fixed or movable)
A6VM Series Other Model Specifications Reference:
A6VM80: Nominal displacement 80 cm³/rev, nominal pressure 400 bar, peak pressure 450 bar, max speed 3900 rpm
A6VM107: Nominal displacement 107 cm³/rev, nominal pressure 400 bar, peak pressure 450 bar, max speed 3550 rpm
A6VM115: Nominal displacement 115 cm³/rev, nominal pressure 400 bar, peak pressure 450 bar
A6VM160: Nominal displacement 160 cm³/rev, nominal pressure 400 bar, peak pressure 450 bar, max speed 3100 rpm
A6VM170: Nominal displacement 170 cm³/rev, nominal pressure 400 bar, peak pressure 450 bar
A6VM215: Nominal displacement 215 cm³/rev, nominal pressure 400 bar, peak pressure 450 bar
A6VM250: Nominal displacement 250 cm³/rev, nominal pressure 350 bar, peak pressure 400 bar
Note: Specifications are based on Bosch Rexroth official technical documentation, verified supplier technical pages (ZXAN Hydraulic, Gidromir, Paro Component Library, etc.), and industry-standard specifications. The A6VM Series 65 covers displacement ranges from 28 to 200 cm³/rev. Always verify against the complete model code and consult the latest Rexroth official technical documentation during selection.
Key Technical Advantages
1. Bent Axis Design for High Power Density and Excellent Starting Characteristics
The A6VM200 employs a bent axis axial piston design, with the rotor group positioned at an angle to the drive shaft. Compared with swashplate designs, bent axis motors offer a wider displacement adjustment range, higher starting torque, and superior low-speed operating characteristics. The motor’s high power-to-weight ratio delivers greater torque for the same weight, making it suitable for demanding travel drive and industrial applications.
2. EP6 Electric Proportional Control for Precise Dynamic Speed Regulation
The EP6 electric proportional control device features a swivel angle sensor, enabling continuous and precise adjustment of motor displacement. Through electrical signal control, the system can adjust motor displacement in real time based on load changes, achieving precise speed control and torque matching. The swivel angle sensor provides closed-loop position feedback, ensuring consistency and repeatability of displacement control, suitable for travel drives and industrial transmission systems requiring precise speed control.
3. Integrated 210 bar Relief Valve for Built-In Safety Protection
The motor incorporates an integrated pressure relief valve (set at 210 bar), which automatically relieves pressure when system pressure rises abnormally, protecting both the motor and hydraulic system from overpressure damage. The integrated design eliminates the additional piping and leakage points associated with external relief valves, simplifying system structure and enhancing operational safety.
4. High Pressure Rating with Wide Operating Range Adaptability
With a nominal pressure of 400 bar and peak pressure of 450 bar, the motor handles high-pressure heavy-duty applications. The displacement adjustment range of 0 to 200 cm³/rev, combined with a speed range of 2900 rpm (at Vg max) to 4600 rpm (at Vg min), flexibly accommodates diverse operating requirements from low-speed high-torque to high-speed low-torque. Suitable for both open and closed circuits, with compatibility for mineral oil and HFA, HFB, HFC fire-resistant fluids.
5. 100% Simulation-Based Testing and Drop-In Interchangeability
Every A6VM200 undergoes 100% simulation-based testing prior to shipment. Test protocols cover displacement calibration, pressure holding performance, control response characteristics, and internal leakage detection. As a drop-in replacement, the motor is fully compatible with the OEM Rexroth specification in mounting dimensions (ISO 3019-2 flange), drive shaft (DIN 5480 spline), port configuration (SAE flange), and control interface, enabling direct replacement without hydraulic circuit or control system modification.
Application Areas
Mobile Machinery Travel Drives: Travel motors for excavators, loaders, and wheeled excavators, with BVD balance valve for stable travel control
Rotary Drilling Rig Power Heads: Providing high-torque, high-speed hydraulic drive for rotary drilling rig power heads — one of the most typical A6VM200 applications
Lifting Equipment: Hoisting and slewing mechanisms for crawler cranes and truck cranes, utilizing large displacement for high torque output
Mining Machinery: Hydraulic drive systems for continuous miners and roadheaders, providing stable power under demanding conditions
Marine & Offshore: Hydraulic transmission systems for marine winches and deck machinery, utilizing wide displacement range for precise control
Industrial Transmission: Metallurgical equipment, presses, and test rigs requiring high torque and precision speed control
Forestry & Agricultural Machinery: Travel and implement drives for harvesters, forwarders, and other equipment
Expert Maintenance Tips
Pre-Installation Checks:
Verify mounting flange conforms to ISO 3019-2 (SAE J744 — 152-4 (C)) standard; mounting surface clean and free of burrs
Inspect DIN 5480 splined shaft mating surface for wear or corrosion; apply appropriate grease
The motor must be fully filled with hydraulic oil via the housing drain port prior to installation to prevent dry friction damage to bearings and pistons during startup
Confirm SAE flange port connections are secure and seals are intact
Operational Maintenance:
Maintain hydraulic oil cleanliness to ISO 4406 minimum 20/18/15; use pressure filters with ≤ 10 μm filtration accuracy
Replace hydraulic oil every 1,000 to 3,000 operating hours or every six months to prevent oxidation and degradation
Maintain fluid temperature within -30°C to +90°C; avoid overheating
Periodically verify the integrated relief valve (A210, set at 210 bar) setting is accurate
Periodically verify EP6 control swivel angle sensor signal integrity and electrical connection reliability
Periodically check housing drain line for unobstructed flow; return back pressure must not exceed allowable limits
Troubleshooting Guide:
Motor fails to rotate or speed abnormal: Check hydraulic system supply pressure, verify EP6 control signal reaches the motor correctly, check swivel angle sensor feedback signal
Insufficient output torque: Confirm system pressure reaches rated value (400 bar); check relief valve setting has not been misadjusted; inspect piston/cylinder for wear
Abnormal noise or vibration: Check housing oil fill level; verify suction line is unobstructed; check splined shaft alignment
External leakage: Inspect shaft seal for aging or damage; verify drain line back pressure is within allowable range
Displacement control failure: Check EP6 control device electrical connections; verify control signal and swivel angle sensor signal are functioning properly
