A6VM Construction Machinery Piston Motor-250cc/r Heavy Load 400 Bar Nominal Pressure

A6VM Construction Machinery Piston Motor-250cc/r Heavy Load 400 Bar Nominal Pressure

Features:

1. Bent-Axis Construction for optimized efficiency and torque

2. Tapered Piston Arrangement Enhancing Hydraulic Efficiency

3. Designed for Open-Loop Hydraulic Systems

4. Engineered for Closed-Loop Hydraulic Circuits

5. Extensive Control Range for variable operating conditions

6. High power density design

7. Output speed depends on pump flow and motor displacement

8. Output torque increases with pressure differential and displacement

9. Hydrostatic transmission with wide range control capability

10. Multiple control device options

Technical data:

Specifications:

Applications:

Competitive Advantage:

1. Utilizing modular additive‑manufactured components such as an aluminum fluid channel network and lightweight composite housing, the Rexroth A6VM axial piston motor achieves up to a 15% weight reduction while maintaining mechanical strength and corrosion resistance. This lightweight hydraulic motor improves equipment energy efficiency and payload capacity, making it ideal for weight‑sensitive mobile machinery and aerial work platforms. By combining innovation in manufacturing with proven hydraulic performance, this piston motor supports greener operations and enhanced machine agility.

2. Compatible with a wide voltage range electro‑hydraulic proportional control unit, the Rexroth A6VM piston motor interfaces seamlessly with various power systems. Its modular proportional valve cartridge design enables smooth transitions between high‑ and low‑pressure operating modes, preventing shock loads from damaging system components. Widely employed in rail vehicle drives, electric port stackers, and power grid failover applications, this axial piston motor maintains stable operation under variable electrical conditions, enhancing reliability and extending service intervals.

3.  With optimized trigger logic and valve spool dynamics, the Rexroth A6VM hydraulic motor reduces valve shifting delays to under 10 milliseconds, enabling rapid transition and precise positioning. This high‑response performance is critical in automated assembly lines, stamping presses, and multi‑station machining centers, where micro‑position adjustments and fast repeatability are essential. The piston motor’s quick actuation capabilities translate to higher throughput and tighter process control, making it a top choice for high‑speed automated manufacturing environments.

The Analysis For Rexroth A6VM Piston Motor Common Breakdown:

1. In failure scenario number 25, insufficient fluid flow in the cooling circuit or a clogged heat exchanger can cause localized overheating and thermal runaway, leading to film breakdown and metal-to-metal contact. Symptoms include localized scuffing, accelerated wear, and thermal fault alarms. Recommended measures include cleaning or replacing the heat exchanger, increasing the cooling pump flow rate, and installing temperature monitoring and thermal protection devices to ensure effective cooling and even temperature distribution within the motor.

2. In failure scenario number 26, incorrect positioning of the return line inlet relative to the reservoir can cause poor fluid return and vacuum conditions, leading to cavitation and severe performance fluctuations. Symptoms include unstable power output and increased noise. It is recommended to redesign the return inlet elevation and reservoir height, maintain proper fluid level and return line slope, and install check valves where necessary to ensure stable return flow.

3. In failure scenario number 27, improper parallel or series pump configurations can result in mismatched pressure and flow during multi-mode switching, causing system oscillations and efficiency losses. Symptoms include impact loads and increased energy consumption during transitions. It is recommended to review and adjust the parallel or series arrangement based on operational requirements, calibrate valve switching logic, and incorporate bypass valves or accumulators into the circuit to smooth transitions and mitigate shock loads.