Danfoss 90M Series Motor | 90M030, 90M055, 90M100, 90M130 | 90M100NC0N8 | Fixed Displacement Piston Motor

Danfoss Series 90M Heavy-Duty Closed Circuit Fixed Piston Motors

Product Overview: The Danfoss Series 90M is a high-efficiency axial piston fixed displacement motor engineered specifically for hydrostatic transmission (HST) systems. As a global performance standard for closed-circuit machinery, this series spans a full displacement portfolio from the compact 30cc (90M030) and 55cc (90M055) to the heavy-duty 100cc (90M100) and 130cc (90M130). Featured models such as the 90M100NC0N8N0S1 W00NNN000020 are renowned for their “High Power Density” and “Extreme Environmental Durability.” Typically paired with Series 90 pumps, 90M motors deliver precise torque and efficient power transmission at continuous pressures up to 420 Bar, making them the premier choice for vibratory rollers, pavers, harvesters, and diverse heavy-duty mobile drive systems.

Key Technical Advantages:

• Exceptional High-Pressure Performance: Rated for continuous operation at 420 Bar (6000 PSI) with peak capabilities up to 480 Bar. Built to handle frequent starts, stops, and direction reversals over a long service life.

• High-Speed Efficiency: Optimized valve plate design minimizes internal friction and fluid loss, maintaining superior volumetric efficiency even at high RPMs.

• Rugged Closed-Circuit Engineering: Specifically optimized for closed-loop systems with excellent resistance to shock loads, ensuring stability in harsh job site conditions.

• Versatile Configuration Options: Supports various shaft specifications (e.g., splined or keyed) and mounting flanges, such as the NC0N8 configuration, ensuring seamless “drop-in” integration with major gearboxes and drivetrains.

• Superior Reliability: Core rotating groups (pistons, slippers) undergo specialized anti-wear treatments to significantly extend maintenance intervals under high-load duty cycles.

Detailed Models & Parameters:

• Core Series: Danfoss Sauer Series 90M (Fixed Displacement).

• Model Keywords: 90M030, 90M042, 90M055, 90M075, 90M100, 90M130.

• Configuration Strings: 90M100NC0N8N0S1, 90M100NC0N8W0F1.

• Pressure Ratings: Rated at 420 Bar (6000 PSI) continuous; Peak capability up to 480 Bar.

• Target Applications: Vibratory roller drives, asphalt paver travel systems, harvester drum drives, concrete mixer drum drives, and large-scale HDD rigs.