Rexroth A6VM250 Variable Motor | A6VM250HA, A6VM250EP2D | 450 Bar
| Model Number | A6VM250HA1/63W1-VZB027B, A6VM250EP2D/63W1-VZB017B |
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Product Description
Rexroth A6VM250 Series High-Pressure Axial Piston Variable Motors
Product Overview:
The Rexroth A6VM250 Series motor is a recognized powerhouse in hydrostatic transmissions, engineered specifically for high-load and wide-range speed adjustment in heavy-duty machinery. Featuring an axial piston bent-axis design, the A6VM250 is renowned for its exceptional power-to-weight ratio and a displacement ratio of up to $V_{max}/V_{min} = 3.47$. This selection covers core and customized configurations: A6VM250HA1/63W1-VZB027B-SO99 (Automatic high-pressure control), VZB027A-SO164 (Special customized variant), and A6VM250EP2D/63W1-VZB017B (Electric proportional control). Whether in large crawler drives, winch systems, or rotary drilling rigs, these motors deliver consistent torque at peak pressures up to 450 Bar.
Key Technical Advantages:
Intelligent Control Synergy: * HA1 (High Pressure Control): Automatically adjusts displacement based on working pressure to balance torque and speed, preventing system overload and optimizing fuel efficiency.
EP2D (Electric Proportional Control): Offers extremely precise flow regulation via electronic signals, perfect for highly automated electro-hydraulic systems.
Superior Speed Versatility: Stepless displacement adjustment from maximum to minimum enables high starting torque and high-speed cruise capabilities.
High-Pressure Robustness: Rated for 400 Bar (5800 PSI) continuous and 450 Bar (6500 PSI) peak pressure. Built with reinforced rotating groups and heavy-duty bearings for an extended service life in harsh environments.
Specialized Customization (SO99/SO164): Includes optimized sealing and port configurations for specific applications, ensuring seamless compatibility with major global heavy machinery.
Target Applications: Crawler travel drives, heavy-duty crane winches, rotary drilling power heads, Tunnel Boring Machines (TBM), and industrial conveyor systems.
Detailed Models & Parameters:
Core Series: Rexroth A6VM Series 63 (Axial Piston Variable Motor).
Model Keywords: A6VM250, A6VM250HA1, A6VM250EP2D, VZB027B-SO99, VZB027A-SO164, VZB017B.
Technical Specs Decoding:
250: Nominal displacement of 250 cm³/rev.
63W1: Denotes the latest design series and component standards.
VZB: Identifiers for shaft types, porting arrangements, and FKM (Viton) sealing materials.
Pressure Specs: Nominal pressure 400 Bar, Peak pressure 450 Bar.





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