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Sunfab Hydraulics
fixed displacement axial piston hydraulic motor

fixed displacement axial piston hydraulic motor

Product catalog summary

Overview: The document provides technical specifications and operational guidelines for the Sunfab SCM M2 range of axial piston motors, suitable for applications such as winch, slewing, wheel, and track drives. The motors are characterized by their robust design, high starting torque, and reliability.

Specifications: The SCM M2 motors cover a displacement range of 47–108 cm³/rev with a maximum working pressure of 40 MPa. They feature double tapered roller bearings for high shaft loads and excellent speed characteristics. The motors are designed with spherical pistons and a bent-axis configuration.

Performance Parameters: The motors have intermittent and continuous power ratings based on maximum continuous speed and working pressure. Intermittent duty is defined as a maximum of 6 seconds per minute.

Installation and Maintenance: The motor housing should be filled with oil to at least 50% before starting. The drainage pipe must be connected to the topmost drainage outlet and the oil tank below the oil level. Recommended oil velocity in the pressure line is a maximum of 7 m/sec, and cleanliness should adhere to ISO norm 4406, code 16/13.

Temperature and Cooling: System temperature should not exceed 60 °C, and drain flow temperature should not exceed 90 °C. Cooling or flushing of the motor housing may be necessary to maintain acceptable temperatures.

Hydraulic Fluids: High-performance oils meeting ISO specifications such as HM, DIN 51524-2HLP, or better, are required. The ideal viscosity range is 20 - 40 cSt.

Safety Warnings: Users are cautioned against touching pressure pipes, being aware of rotating parts, and noting that the motor and pipes can reach high temperatures during operation.

Additional Information: The document includes formulas for calculating flow rate, speed, torque, and power, as well as guidelines for housing flushing and simplified circuit diagrams.

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