Baldor AC Axis Motor, Large, 8192 Line ENC - VMC6535
Whats the difference between Baldor and Glentek AC Brushless Motors?
David de Caussin, an original Fadal family member was directly involved with the Fadal the Brushless servo system from the initial design to production with John Vasak, one of the sons of Dick Vasak, the owner of Glentek. And still we work with them even today.
The history of the AC motors goes back to 1997 when we first introduced the brushless axis drive system. After the Glentek began production, Baldor was selected as a second source supplier for the large and small versions of the brushless axis motors.
When they first received the Baldor motor Dave was curious about the cost difference between the Glentek and Baldor. He tore the Baldor completely apart in order to verify nothing was of sub standard quality. He even used a 5 ton press and pressed the windings out of the case to examine the internal differences.
Nothing was different between the motors except, the only difference found was that Baldor uses direct lamination exposure rather than aluminum housings. Exposed laminations are more efficient when transferring heat from the windings. Better heat removal equals better duty cycle.
The division that makes the Baldor brushless is not related to the brush division. There were quality issues with the Baldor brush motors. The brushless motor is far superior to a brush motor based on simplicity; no internal TACH or Brushes, much simpler in design and manufacturing.
One of the main reasons for Baldors price difference is their magnitude of scale in purchasing power; it provides them tremendous cost savings that Glentek can't provide.
Unfortunately after David left Fadal, the Glentek switched from the original HEIDENHAIN encoders to a cheaper Tamagawa encoder which uses "simulated" 8192 line counts. This is something that can affect the finish during contouring and create other problems.
All in all, we have used far more Baldor brushless motors than the Glentek motors, without any issues. David would be glad to answer any specific question you might have about the differences between Baldor and Glentek Motors.
Former VP of Control Design
Fadal Engineering Company, Inc.
Brushless 8192 Line AC Motor by Baldor.
This "product" has been designed to meet or exceed the original factory specifications. In many cases they are manufactured by the Original Equipment Manufacturer.
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