Danfoss 90 Series Pump | 90R075, 90L100 | 90R075HF1C | 90L100KA5NN | Closed Circuit Piston Pump

Danfoss Series 90 Heavy-Duty Closed Circuit Axial Piston Pumps

Product Overview: The Danfoss Series 90 axial piston variable displacement pumps are the global performance standard for hydrostatic transmissions (HST) in mobile machinery. This series covers a wide displacement matrix, with featured models including the 90R075HF1CD80P3S1D03GBA141424 (75cc Right-hand) and 90L100KA5NN60S4C7E02FAC (100cc Left-hand). Engineered specifically for closed-circuit systems, Series 90 is renowned for its “High Power Density” and “Extreme Reliability” in harsh environments. Capable of maintaining stable, infinitely variable speed and direction reversal at continuous pressures up to 420 Bar, it serves as the vital core for road rollers, pavers, harvesters, and heavy-duty mobile chassis.

Key Technical Advantages:

• Heavy-Duty High-Pressure Ratings: Rated at 420 Bar (6000 PSI) continuous; peak capabilities up to 480 Bar. Reinforced rotating groups and heavy-duty bearings ensure durability under frequent reversing and shock loads.

• Fully Integrated Closed-Loop Solution: Built-in charge pumps, high-pressure relief valves, and charge relief valves significantly simplify external piping and minimize potential leakage points.

• Precision Control Options: Supports HF/KA series controllers (including EDC and MDC), providing operators with incredibly fine-tuned control and feedback.

• Superior Suction & Heat Dissipation: Optimized charge flow paths for high-speed travel prevent cavitation and maintain consistent volumetric efficiency in extreme high-temperature conditions.

• 100% Industrial Compatibility: Strictly adheres to SAE mounting standards (e.g., 14-tooth splined shafts), ensuring ports and flanges align perfectly for a seamless “drop-in” replacement on global OEM platforms.

Detailed Models & Parameters:

• Core Series: Danfoss Sauer Series 90 (Closed Circuit).

• Model Keywords: 90R075, 90R075HF1C, 90L100, 90L100KA5NN.

• Displacements: 75 cm³/rev (90R075) / 100 cm³/rev (90L100).

• Pressure Ratings: Rated at 420 Bar continuous; Peak capability up to 480 Bar.

• Rotation: R (Clockwise/CW); L (Counter-clockwise/CCW).

• Target Applications: Vibratory rollers, asphalt pavers, combine harvesters, and concrete mixer travel drives.