Danfoss 90 Series Pump | 90L075, 90L100 | 480 Bar Closed Circuit Piston Pump

Danfoss 90 Series Heavy-Duty Closed Circuit Axial Piston Pump

Product Overview: The Danfoss (formerly Sauer-Danfoss) 90 series is a flagship range of high-performance hydrostatic components designed for Closed Circuit transmissions. Covering displacements from 42cc to 130cc (including 055, 075, and 100), the 90 series is synonymous with reliability, high power density, and modular versatility. Capable of operating at continuous pressures up to 480 Bar, these pumps—available in 90L (Counter-clockwise) and 90R (Clockwise)—feature integrated charge pumps and a vast array of control options (e.g., KN Servo Control or KA Electrical Control) for mobile machinery travel drives.

Key Technical Advantages:

• Industry Standard for Heavy Duty: Engineered for the most demanding 24/7 duty cycles. Rated at 420 Bar (6090 PSI) with peak cycles reaching 480 Bar (6960 PSI), effortlessly handling rapid reversal and aggressive shock loads.

• Highly Integrated System Architecture: Features integrated charge pumps, high-pressure relief valves, and charge relief valves within the pump housing, streamlining system plumbing while enhancing cooling efficiency.

• Versatile Intelligent Controls (GBA):

  • KN Control (90L075KN): High-performance servo regulation, indicated by codes like GBA323224, ensuring exceptionally smooth speed modulation and precise feedback.

  • KA Control (90L100KA): Supports Electronic Displacement Control (EDC), as seen in code GBA424224, facilitating seamless integration with modern digital BUS-control systems.

• Superior Power-to-Weight Ratio: The compact housing combined with heavy-duty swashplate supports allows for massive power output in a miniaturized footprint—ideal for everything from compact rollers to large-scale agricultural harvesters.

Detailed Models & Parameters:

• Core Series: Danfoss 90 Series (90L & 90R).

• Representative Models: 90L75KN1NN80R4 S1D03GBA323224, 90L100KA1NN80R4S1 E03GBA424224.

• Displacements: 042, 055, 075, 100, 130 cm³/rev.

• Pressure Ratings: Rated at 420 Bar (42 MPa); Peak cycles up to 480 Bar (48 MPa).

• Configuration: S1D03/S1E03 (Standard spline and flange specifications).