The Danfoss / Eaton-M39 Hi-Speed Fixed Motor is suitable for a wide range of applications, including transit mixers, road rollers, motor graders, dozers, cranes, sweepers, lift trucks, tractors, windrowers, planters, and marine applications.
This cast iron motor features a compact design, dynamic machine control, and Pro-FX readiness. It has a flow rate of 67.3 gallons per minute and a torque rating of 397 newton metres.
Got a transit mixer that's been chewing through motors, and I keep hearing about this M39 setup. What kind of torque we talking here, and is the flow rate gonna hold up on a rig like that?
Answer by: Customer Support on Oct 6, 2025, 7:05 PM
For a transit mixer, those numbers are solid. You're looking at 397 newton metres of torque and a flow rate of 67.3 gallons per minute. That combination is built for exactly the kind of sustained, heavy-duty demand a mixer drum puts on a hydraulic motor. The cast iron construction helps hold up under the kind of continuous loading that tends to wear out lighter units fast.