DC micro motors target medical applications
Mclennan Servo Supplies has announced the availability of the PITMANN range of high speed brushless/slotless DC micro motors.
With speeds up to 70,000rpm, motor diameters from less than 10mm and strong torque to size performance, the range is aimed at demanding medical device applications and other miniature power transmission systems where very high rotary speeds and compact size characteristics need to be combined with smooth velocity control, low audible noise, long life and high reliability.
The 12 and 24VDC motors are being used increasingly as the medical industry moves away from pneumatic driven devices towards miniature electromechanical systems that require more precise control for the next generation of surgical, dentistry and microsurgery tools.
The PITTMAN high speed slottless/brushless motor construction effectively eliminates the stator teeth by forming and encapsulating the entire stator winding along the inside surface of the back iron. The design removes magnetic cogging, resulting in zero detent torque, low inductance and fast response rates that ensure very rapid acceleration/deceleration and excellent speed regulation.
The range covers motor diameters from 9.5 to 28mm and torque ratings from 0.2 to 10.5Ncm, with a choice of stack lengths in five frames sizes for application sizing flexibility. Standard features include shielded ball bearings, stainless steel construction and high energy neodymium rotor magnets. Permanent magnet rotors are balanced for smooth and quiet operation at high speeds.
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