
Sauer-Danfoss MMF044 MMV044 — hydraulic motor
Sauer-Danfoss Series 40 hydraulic motors MMF044 and MMV044 are axial piston units with a swashplate design for closed-circuit hydrostatic transmissions of medium power. The MMF044 is a fixed displacement hydraulic motor with a constant ratio between fluid flow and output shaft speed. The MMV044 is a variable displacement version that allows output speed and torque to be adjusted without changing pump flow. The M44 frame size provides greater displacement and torque compared to the M35 while maintaining the compact dimensions characteristic of the Series 40 swashplate design. The mechanical swashplate control of the MMV044 provides precise regulation across a wide load range, making this model suitable for drives with variable speed requirements — including fan drives and mobile machinery transmissions.
Full model range in the section Sauer-Danfoss Series 40.
Technical specifications MMF044 MMV044
- MMF044 — Fixed displacement motor
- MMV044 — Variable displacement motor
- Displacement: 35.0–43.5 cm³
- Max. working pressure: 350–415 bar
Installed in equipment
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Equipment types
- Agricultural machinery
- Construction equipment
- Crane
- Material handler
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JCB
- VM132D — Roller / Compactor
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BOMAG
- BW211 — Roller / Compactor
- BW213 — Roller / Compactor
- BW220 — Roller / Compactor
OEM numbers MMF044 MMV044
Spare parts for Sauer-Danfoss MMF044 MMV044
- Cylinder block Rotor
- Drive Shaft motor
- Ball guide
- Disk Spring
- Friction Plate
- Coupling of drive shaft
- Cylinder block press pin
- Roller Bearing
- Cradle Bearing Set
- Retainer Plate
- Swash plate (cam rocker)
- Piston
- Rotor Spring
- Seal kit motor
- Shaft Seal
- Valve plate
- Ball guide washer
- Washer
- Pressure Override Valve
- Control Valve Regulator
- Servo Piston
Repair and service MMF044 MMV044
Diagnostics and repair of motor Sauer-Danfoss MMF044 MMV044: monitoring operating pressure and leaks, inspection of the piston group and valve plate, and bench testing after repair.
Contact us — we will repair motor MMF044 MMV044 and select genuine spare parts.
Technical specifications verified by the Aspect Plus technical catalog.