A6VM Piston Motor
5 month ago
Product details
A6VM Axial Piston Variable Motor: A High-Performance Core Component in Hydraulic Systems
I. Product Overview
TheA6VM seriesis a high-performance axial piston variable motor designed for both open and closed hydraulic circuits. Its key feature lies in itsswashplate-type axial tapered piston rotor group, enabling stepless displacement adjustment to meet varying speed and torque requirements under different operating conditions. Widely used in construction machinery, mining equipment, marine machinery, and industrial applications, this series is renowned for its efficiency, reliability, and adaptability.
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II. Core Features
1. Swashplate Design
• Pistons are arranged at an angle to the drive shaft, allowing stepless displacement adjustment (from maximum displacementVg maxto zero displacementVg min = 0) by varying the swashplate angle.
• Compact structure with strong shock resistance, suitable for high-load, high-pressure applications.
2. Wide Control Range
• Output speed is proportional to pump flow and motor displacement, while output torque increases with pressure differential and displacement.
• Supports hydraulic, electrical, or mechanical control methods (e.g., proportional control, two-position control, or automatic control) for complex operating conditions.
3. Energy Efficiency
• Eliminates gear transmission mechanisms, reducing energy loss.
• Enables the use of smaller pumps, lowering system costs and energy consumption.
4. Long Service Life & High Reliability
• Robust bearing system designed for continuous high-load operation.
• Key components (e.g., pistons, cylinder blocks, valve plates) use high-strength wear-resistant materials to minimize leakage and wear.
5. Low Inertia & Fast Response
• Small rotational inertia ensures excellent starting characteristics, ideal for applications requiring frequent starts/stops or dynamic adjustments.
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III. Technical Specifications (Typical Models)
【表格】
Parameter A6VM 80 A6VM 160 A6VM 355
Rated Pressure 400 bar 400 bar 400 bar
Peak Pressure 450 bar 450 bar 450 bar
Displacement Range 0 ~ 80 cm³/rev 0 ~ 160 cm³/rev 0 ~ 355 cm³/rev
Speed Range 0 ~ 4,000 rpm 0 ~ 3,500 rpm 0 ~ 2,800 rpm
Control Methods HD/HZ/EP/EZ, etc. HD/HZ/EP/EZ, etc. HD/HZ/EP/EZ, etc.
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IV. Typical Applications
1. Construction Machinery
• Travel drives and slewing mechanisms in excavators, loaders, and rollers.
• Winch and luffing systems in cranes.
2. Mining Equipment
• Cutting and traction systems in shearers and roadheaders.
• Hoisting machinery power transmission.
3. Marine Machinery
• Hydraulic drives for deck equipment (e.g., anchors, winches).
• Steering gear and bow thrusters.
4. Industrial Equipment
• Clamping and injection systems in injection molding and die-casting machines.
• Hydraulic drives in steel mills (e.g., continuous casting machines, rolling mills).
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V. Selection & Configuration Recommendations
1. Determine Displacement & Pressure Rating Based on Operating Conditions
• High-load, low-speed applications: Choose larger displacement models (e.g.,A6VM 355).
• High-speed, light-load applications: Opt for smaller displacement models (e.g.,A6VM 55).
2. Match Control Methods
• Precise speed control: Prioritize electrical proportional control (EP) or hydraulic proportional control (HD).
• Simple two-position control: Select hydraulic two-position control (HZ) or electrical two-position control (EZ).
3. System Compatibility
• Confirm hydraulic fluid type (mineral oil or environmentally friendly hydraulic oil) and viscosity range.
• Choose motor size and port configuration based on installation space.
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VI. Maintenance & Care
1. Regularly Monitor Hydraulic Fluid Cleanliness
• Replace hydraulic fluid every1,000 operating hoursor6 monthsto prevent contamination-induced wear.
2. Inspect Sealing Performance
• Check for leaks at shaft seals and connections; replace aged seals promptly.
3. Avoid Overloading
• Ensure operating pressure and speed remain within rated limits to extend bearing and piston life.
4. Long-Term Storage Precautions
• Clean the motor surface and apply anti-rust oil before shutdown.
• Verify parameter normality upon restart.
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