Joy Mm Delaware, Inc.

Joy Global Underground Mining LLC

Edward L Doheny, Ii

Anthony Reid

David Stryffeler

Ben Snyman

Hekkie Van Dyk

A mining machine including a chassis, an actuator, a cutter drum supported by the chassis, the cutter drum driven by the actuator, a cutter bit coupled to the cutter drum, and a controller. The controller includes a processor and memory and is configured to measure a characteristic of the actuator, determine the cutter bit is worn based on the measured characteristic of the actuator, and output a signal when the cutter bit is determined to be worn.

Growing community of inventors

River Hills, WI, United States of America

Edward L Doheny, Ii