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High shock rated dc motor for harsh operating conditions

29 March 2015

Astrosyn International Technology has delivered the first of a new design of high shock rated permanent magnet dc motor for a hydraulic application in an all-terrain vehicle.

Required for use in dusty salt-laden conditions, the motor has to operate at high altitude over a wide ambient temperature range, with low EMC emissions. To meet these requirements, a high efficiency design was essential, with low losses and a low input current. The design incorporates rare-earth permanent magnets, low-loss lamination steel and novel designs in the windings and construction.

Operating at 2,100rpm continuous duty, the 5kW dc motor delivers an output torque of 22.5Nm. For short periods the motor can provide an output power of 8kW at 92 percent efficiency. An internally fitted encoder provides position or speed monitoring.

To cope with a variety of environmental conditions, the motor is available with ratings from IP20 to IP68. Customised options include power and control signal configurations, flanges, mounting orientation and shaft specification.

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