Staffa HMC two speed piston motor 1.Low speed,high torque 2.Completely interchangeable with original 3.Very competitive ... performance6. Wide range option of displacement7. Switchable displacement while the motor is running8. Switch option: electromagnetic, manual, automatic. 9. Wide applicable ... . Staffa HMC of HMC080,HMC100,HMC125,HMC200,HMC270,HMC325 two speed hydraulic piston motor