Danfoss 51D080 Motor | 51D080-1-RD3NE | 51D080-RD2N-HSA2 | Variable Bent Axis Motor

Danfoss 51D080 Series High-Pressure Variable Bent Axis Motors

Product Overview: The Danfoss 51D080 Series represents the gold standard for high-performance variable displacement motors in the hydraulic industry. Utilizing advanced Bent Axis technology, the 51 Series motors operate at extreme speeds and pressures, offering a massive adjustment range from maximum to zero displacement. This category features the 80cc precision configurations: 51D080-1-RD3NE… and 51D080-RD2N-HSA2…. These motors are the definitive choice for crawler drives, rotary drilling rigs, concrete pump drives, and heavy-duty material handling machinery.

Key Technical Advantages:

• Extensive Variation Range: The bent-axis architecture supports a displacement ratio of up to 5:1, enabling smooth transitions from high-torque startup to maximum travel speeds without mechanical gear shifts.

• Superior Mechanical Efficiency: Precision spherical piston designs minimize internal friction and leakage, ensuring elite power conversion even under high-pressure duty cycles.

• High-Speed Performance: Optimized fluid paths allow for exceptional operational RPMs, significantly boosting overall machine cycle productivity.

• Versatile Control Logic:

  • RD3NE / RD2N: High-precision hydraulic or electric proportional displacement control.

  • HSA2: Specialized pressure compensation or automatic feedback adjustment mechanisms.

• Target Applications: Crawler travel motors, winch drives, road milling machines, and forestry harvester heads.

Detailed Models & Parameters:

• Core Series: Danfoss 51 Series (Variable Bent Axis).

• Technical Spec Decoding:

  • 51D080-1-RD3NE…: Size 80cc, Series 1 design, RD3 control logic.

  • 51D080-RD2N-HSA2…: Size 80cc, equipped with HSA2 specialized feedback adjustment block.

• Core Performance Specs:

  • Displacement: 80 cm³/rev.

  • Rated Pressure: 450 Bar (6500 PSI).

  • Peak Pressure: 480 Bar (7000 PSI).

  • Control Signal: Supports hydraulic pilot or electronic proportional regulation.