Gerotor Hydraulic Motor M+S Hydraulic MMS12.5C

Manufacturer: M+S Hydraulic (Bulgaria). The MMS12.5C gerotor hydraulic motor is a reliable, compact unit from the MM series, designed for low-speed operation with high efficiency. Devices in this series feature a roller-free gear ring, making them suitable for extended periods of operation at moderate pressure or for short cycles at high pressures. The main pressure ports are located on the side with G3/8" threads, and the drain port has G1/8" threads.

Brief Overview of Characteristics

• Displacement: 12.5 cm³/rev
• Maximum Operating Power: 2.4 kW
• Series: MM (low-speed, compact design)
• Port Positioning: main ports on the side (G3/8"), drain port G1/8"
• Suitable for extended duty cycles at moderate pressure or for short-term operation at high pressure
• Various shaft, flange, and port options available upon request

Dimensions and Construction

• Shaft Type: cylindrical with parallel key
• Key Diameter: 16 mm, A5x5x16 DIN6885
• Pressure Port: G3/8"
• Drain Port: G1/8"
• Other shaft options available upon request (see specifications in PDF)

Main Operating Parameters

• Displacement: 12.5 cm³/rev
• Maximum Operating Speed: 1550 rpm
• Maximum Torque: 16 Nm
• Maximum Operating Power: 2.4 kW
• Maximum Operating Pressure: 100 bar
• Flow Rate: 20 l/min
• Weight: 2 kg
• Detailed information and technical drawings: PDF

Applications

• Various special and industrial machinery: loaders, manipulators, construction and agricultural equipment, conveyor and drive systems

Operating Recommendations

• Short-term high speed and short-term high pressure should not occur simultaneously
• Recommended hydraulic fluid cleanliness: ISO cleanliness code 20/16; nominal filtration 25 microns or higher
• Recommended use of mineral-based hydraulic oils HLP (DIN 51524) or HM (ISO 6743/4)
• Recommended minimum oil viscosity: 13 mm²/s (70 SUS) at 50°C
• Maximum recommended system operating temperature: 82°C
• To ensure optimal service life of the hydraulic motor, before operating under maximum load, fill the system with fluid and allow the motor to run at moderate load and speed for 10–15 minutes

The M+S Hydraulic MMS12.5C gerotor hydraulic motor is an excellent choice where compactness, reliability, and stable operation under moderate loads are required. Thanks to various shaft, flange, and port configurations, the model easily integrates into existing hydraulic systems. If you need detailed technical specifications or individual selection of an option, refer to the PDF specification or contact the supplier's specialists.

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