Danfoss 51V 51C 51D Motor | 51V080-1-RS1N | 51V110-1-RC8N | Variable Bent-Axis Motor
| Model Number | 51V080-1-RS1N E2B1 NNU1 NNN 029AAF0 0000, 51V110-1-RC8NE2B1 NNU1 NNN 055AAF0 0000 |
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Product Description
Danfoss 51 Series Bent-Axis Variable Displacement Hydraulic Motors
Product Overview: The Danfoss 51 Series represents the pinnacle of hydrostatic drive actuators. Utilizing advanced Bent-Axis technology with a wide displacement range (swiveling up to 51°), the 51 series delivers an unparalleled speed-to-torque ratio. This page features two precision-configured models: 51V080-1-RS1N-E2B1-NNU1-NNN-029AAF0-0000 and 51V110-1-RC8N-E2B1-NNU1-NNN-055A. Renowned for their elite power density, these motors are the premier choice for crawler track drives, high-speed skid steer propulsion, large industrial fan systems, and agricultural travel drives.
Key Technical Advantages:
Ultra-Wide Displacement Range: The 51° swivel capability allows seamless transitions between heavy-load startup (max displacement) and high-speed roading (min displacement), significantly boosting machine efficiency.
Tiered Configuration Design: * 51V: Variable displacement motor with full-featured control interfaces.
51C / 51D: Versions optimized for cartridge mounting or specific control logic.
High-Pressure Resilience: Rated for a nominal pressure of 480 Bar (6960 PSI) with peak capabilities reaching 510 Bar. The robust rotor group ensures extended service life under severe duty cycles.
Advanced Control Options (E2B1): Integrated precision control valves support various modes (Proportional, Hydraulic, etc.), ensuring perfect compatibility with complex hydraulic systems.
Extreme Speed Limits: Optimized spherical piston designs minimize friction at high velocities, enabling exceptional output speeds at minimum displacement.
Target Applications: Heavy excavator travel drives, paver propulsion, rotary drilling rig auxiliary power, and forestry harvesters.
Detailed Models & Parameters:
Core Series: Danfoss Power Solutions 51 Series Bent-Axis Variable Motor.
Model Keywords: 51V080, 51V110, 51C, 51D, RS1N, RC8N.
Technical Specs Decoding:
51V080-1-RS1N: 80cc/rev displacement frame, single-side distribution, equipped with speed sensor ports and specific control blocks.
51V110-1-RC8N: 110cc/rev reinforced displacement frame, offering massive torque reserves and porting optimized for heavy-duty apps.
NNU1 / NNN: Refers to specific sealing configurations and auxiliary port options (e.g., flushing valve ports).
Performance Specs: Mechanical efficiency exceeding 95%, engineered for continuous high-frequency load variations.






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