Danfoss 90 Series Pump | 90R075, 90R130 | 480 Bar Closed Circuit Piston Pump

Danfoss 90 Series Heavy-Duty Closed Circuit Axial Piston Variable Pump

Product Overview: The Danfoss (formerly Sauer-Danfoss) 90 series is a world-renowned range of high-performance hydrostatic components designed for Closed Circuit transmissions. Spanning displacements from 42cc up to 250cc (including 055, 075, 100, 130, and 180), 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 90R (Clockwise) and 90L (Counter-clockwise)—feature integrated charge pumps and a vast array of manual, hydraulic, or electro-proportional control options 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 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 (GDA/GBA):

  • Models like the 90R075MB utilize high-performance manual or hydraulic servo controls (GBA/GDA codes) to ensure smooth speed modulation and precise feedback for mixer drums, drills, or travel drives.

  • KA/BC codes signify various regulator configurations, including Electronic Displacement Control (EDC), facilitating seamless integration with modern electronic 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 forestry harvesters.

Detailed Models & Parameters:

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

• Representative Models: 90R075MB1BC80S3S1D03 (GBA353524), 90R130 KA5BC80L4C8 (GDA 454528).

• Displacements: 042, 055, 075, 100, 130, 180, 250 cm³/rev.

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

• Configuration Codes: H21 (High-performance bearings), S3S1 (Spline/Flange specs).