Case Studies
Member Since 2015
Bodine Electric Company is a leading manufacturer of fractional horsepower (FHP = less than 1 HP/746 watts) small gearmotors, motors and motor speed controls in North America. Bodine Electric offers over 1,400 standard products, and thousands of custom gearmotor solutions.
Content Filed Under:
Industry:
Laboratory Equipment & Automation
and Medical Devices
Laboratory Equipment & Automation
, Medical Devices
, Motion Control Component Manufacturing
, and Robotics
Application:
N/A
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Bodine PMDC Motor and Control System Mixes it up Globally
POSTED 06/27/2019
Bodine Delivers System-Matched Performance
A manufacturer of laboratory mixers contacted Bodine Electric to assist in the development of an enhanced mixer and speed control system. The new design required a through-bore motor shaft that could accept an adjustable height impeller shaft and locking mechanism. It also called for an encoder to accurately measure the speed of the mixer. Finally, the mixer needed a reliable dual-voltage speed control because it would operate at a wide speed range with varying torque loads. As with all laboratory equipment the new motor had to be quiet, dependable, and long-lasting.
Benchtop Mixer / Laboratory Equipment
Our engineering team provided a solution based on our 33A-frame PMDC motor (90 VDC, SCR rated) and our UPM series DC speed control. The custom motor and control system included:
Motor
A threaded, stainless-steel motor shaft with a hollow bore through the entire motor allowed the impeller shaft to be adjusted to a wide range of heights. The impeller locked in position via a threaded collet chuck.
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An integral dual channel encoder contained entirely within the motor housing linked to the digital speed display.
Long-life, pre-shaped and easily serviced motor brushes. Constant force brush springs ensure consistent performance over the full life and travel of the motor brushes.
A single cord connected both the power and feedback between the motor and control.
Speed Control
A dual voltage AC input speed control (115/230 VAC, 50/60 hz) allowed global operation using a single 90 VDC motor, eliminating the need to stock multiple motors for various input voltages.
The system-matched speed control for the motor provided longer brush life, quieter operation and lower motor heating.
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