Sauer Danfoss 90 Series Motor | 90C055 90V055 | 90C055PT008N

LIC Hydraulic specializes in the Sauer-Danfoss 90 Series, the industry-leading axial piston motor for high-pressure closed-circuit hydrostatic transmissions. Available in both 90V (Flange Mount) and 90C (Cartridge) designs, the series—headlined by the 90C055—is engineered to handle the most demanding mechanical walking and engineering machinery duty cycles. With a peak pressure rating of up to $480\text{ bar}$, the 90C055PT008N offers a compact yet powerful solution that integrates seamlessly into planetary gearboxes, providing maximum gradeability and speed control for harvesters, pavers, and crawlers.

Technical Highlights

• Space-Saving Cartridge Design: The 90C models are designed for direct insertion into final drives, reducing overall machine width and optimizing ground clearance.

• High Power Density: Delivers exceptional torque-to-weight ratios, allowing for more efficient machine designs without sacrificing power.

• Advanced Control Logic: Available with various control options to match the specific speed and torque requirements of mobile applications.

• Rugged Reliability: Proven track record in the world’s harshest agricultural and construction environments, ensuring long service intervals.

Application Areas

• Agricultural Machinery: Primary drive motor for high-performance combine harvesters.

• Construction Equipment: Hydrostatic propulsion for pavers, soil stabilizers, and track-mounted rigs.

• Industrial Engineering: Reliable power for heavy-duty rotary and winching systems.

Expert Maintenance Tips

• Proper Priming: Always fill the motor case with clean, filtered oil through the drain port before the initial run. A dry start will cause catastrophic failure of the cylinder block and piston slippers.

• Monitor Case Pressure: Maintain low case drain backpressure to ensure the integrity of the shaft seal and the internal lubrication flow.

• Fluid Condition: Particulate contamination is the primary cause of internal “scoring” in high-pressure motors. Maintain an ISO cleanliness level of 18/16/13 to maximize the lifespan of your 90V055 components.