MRO Magazine

Eaton’s Hydre-MACTM Motor Offers Range of Displacements Helping a Variety of Machines Meet Torque Requirements

February 4, 2016
By Business Wire News


Power management company Eaton today announced five new displacement sizes for its Hydre-MACTM low-speed, high-torque (LSHT) direct drive, radial piston motor. Now available in eight sizes, including 13, 16, 20, 25, 30, 36, 42 and 50 liters per revolution, the Hydre-MAC motor displacement options provide flexibility for heavy equipment manufacturers in the pulp and paper, offshore and mining industries.

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Eaton’s Hydre-MAC  low-speed, high-torque (LSHT) direct drive, radial piston motor is now available  ...

Eaton’s Hydre-MAC low-speed, high-torque (LSHT) direct drive, radial piston motor is now available in eight sizes to help a variety of machines meet torque requirements. (Photo: Business Wire)

The Hydre-MAC motor update also includes a standard hollow shaft with shrink disc coupling and several optional features, such as shaft encoders, integral multi-disc brakes and internal or external spline shafts.

“At Eaton, we are committed to understanding our customers’ challenges and finding innovative solutions. The complete line of displacement ranges for the Hydre-MAC motor provides manufacturers with a variety of torque capabilities to meet the needs of each individual machine,” said Lyle Meyer, product manager, Industrial Drives, Eaton. “In addition, Eaton now offers standard torque arm kits for all motor sizes.”

Depending on a manufacturer’s needs, the Hydre-MAC motor can adjust to deliver the right torque for the application. The new displacement sizes provide a full range of options, with each motor delivering constant power with a range of torques depending on the speed of the machine. In all, Hydre-MAC motor can deliver up to 900 kilowatts (kW) of power and up to 280,000 Newton meters (Nm) of torque at maximum pressures up to 350 bar.

The Hydre-MAC motor, created using a MacTaggert Scott heavy-duty motor design, is a direct drop-in replacement for the industry’s most installed motor.

To learn more about Eaton’s Hydre-MAC motor, visit

Eaton is a power management company with 2015 sales of $20.9 billion. Eaton provides energy-efficient solutions that help our customers effectively manage electrical, hydraulic and mechanical power more efficiently, safely and sustainably. Eaton has approximately 97,000 employees and sells products to customers in more than 175 countries. For more information, visit

Eaton Communications
Mary Rapaport, 952-937-7317