Low Base RPM Motors
Image courtesy of – Yellow Submarine Original Artwork copyright 2015

Low Base RPM Motors

Clarence Klassen Clarence Klassen

Clarence Klassen

President at KlassENgineering Inc

发布日期: 2024年5月22日
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Bill Gilbert of Siemens presented a great method of saving on drive costs for center winders and unwinders at AIMCAL 's Web Handling Conference in 2014.

The basic premise is to use a low base RPM for these motors. This RPM should be as close to the RPM required by the roll at its maximum diameter and maximum line speed. We probably cannot get the RPM as low as needed, but 400 RPM Motors are available.

Turns out the low RPM motors are the same physical size, weight, and cost as a high RPM motor sized for the winder. The saving is in a reduced current rating of the low-speed motor. We save money on the current rating of the drive and the cables between the drive and the motor. There is also a cost saving in the speed reducer with a reduced gear ratio.

We are still waiting for the extremely low-speed motors (50 RPM) needed in many converting lines for electronics. These are not yet available.

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