ChallengeGeneral Kinematics Variable Force feeder

At the bottom of their rotary train dump, a power plant on the Ohio River near Paducah, KY had two reciprocating feeders that were no longer feeding reliably and needed to be replaced.


After inspecting the installation, General Kinematics Vibratory Feeders with Variable Force (VF) wheels were recommended. With these feeders, a feed range of 10-2000TPH with surges would be achieved without damping and causing outages. GK’s VF wheels reduce the rotating unbalance to minimum setting for startup and shutdown, eliminating the need for resistance braking upon shutdown.

VF wheels provide variable force output as a function of air pressure, resulting in an improved range of flow capacity, without the use of a variable frequency drive.  GK’s two mass system with VF wheels offers superior performance with less motor horsepower and simplified controls, as compared to brute force type feeders, or inverter controlled systems.


The installer, Power Techniques, took out the reciprocating feeders that were unreliable and couldn’t give consistent feed rates, and the GK feeders were installed. According to Cary Henken at Power Techniques: “They were well built and go from 10 to 2000 tons per hour reliably.”


The installation went smoothly and the feeders have run reliably. The power plant has expressed their satisfaction that the feeders have met and exceeded all their expectations.

Installing a GK Variable Force feeder

Visit this page to learn more about GK’s vibratory feeders with variable force configurations. Or, reach out to our team of GK experts today!

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Amy Donahue-Kelley

Global Marketing Manager

Amy Donahue-Kelley joined General Kinematics in 2013 and manages the Marketing Department. Amy received a Communications degree and is near completion of her MBA from Lake Forest Graduate School of Management. Since Amy started at GK, she has managed the global marketing efforts and written several technical articles. She enjoys visiting customers and understanding how GK equipment can improve their processes.
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