Danfoss 51V Series Motor | 51V080, 51V250 | Variable Displacement Piston Motor | 51V080-1-RS1N

Danfoss 51V Series High-Pressure Variable Bent Axis Piston Motors

Product Overview: The Danfoss 51V series represents the pinnacle of performance in bent-axis variable displacement motors for hydrostatic drives. Engineered to meet the rigorous demands of heavy-duty mobile equipment, this series provides an extremely wide speed range and exceptional power density. The range includes core displacements from the mainstream 80cc (51V080) to the massive 250cc (51V250). Featured models like the 51V080-1-RS1N and the fully configured 51V250RF2NE2A5ANG0NNN133AANN0300 deliver unmatched stability. With its unique bent-axis rotating group technology, the 51V motor enables seamless modulation from maximum to zero displacement, making it the premier choice for rotary drilling rigs, crawler drives, large offshore winches, and forestry machinery.

Key Technical Advantages:

• Premium Bent Axis Technology: Utilizing an advanced bent-axis architecture, it provides superior mechanical efficiency and starting torque, ensuring smooth operation under high-load, low-speed conditions.

• Wide Displacement Ratio: Supports precise adjustment from maximum to minimum (including zero) displacement, significantly enhancing vehicle top speeds and tractive effort control.

• Extreme High-Pressure Durability: Rated for continuous operation at 450 Bar (6525 PSI) with peak capabilities up to 480 Bar, designed to handle frequent shock loads in heavy machinery.

• Versatile Control Modalities: Supports hydraulic two-point control, electric proportional control, and pressure compensation, allowing for seamless integration with modern electronic vehicle control units.

• Compact High-Power Design: Despite its immense output, the physical dimensions are optimized for easy integration within narrow crawler chassis or confined power unit compartments.

Detailed Models & Parameters:

• Core Series: Danfoss 51 and 51-1 Series (Bent Axis).

• Model Keywords: 51V080, 51V110, 51V160, 51V250, 51V080-1-RS1N.

• Full Config Code: 51V250RF2NE2A5ANG0NNN133AANN0300.

• Displacements: 80 cm³/rev (4.88 in³), 250 cm³/rev (15.25 in³).

• Pressure Ratings: Rated at 450 Bar (6525 PSI) continuous; Peak capability up to 480 Bar (6960 PSI).

• Max Speed: Capable of high-speed output at minimum displacement settings.

• Target Applications: Rotary drilling rig heads, crawler drives, heavy material handlers, and marine winches.