At EMCC/Thistle Industries, we manufacture more V-Ring commutators than any other type. V-ring commutators are composed of copper bars and a steel core that is insulated from each other by segments of mica. Insulated steel V-rings are forced together under pressure on the dovetails machined into the commutator. Nuts or bolts are then tightened while under pressure locking the copper mica assembly in place. V-ring commutators come in a wide variety of types and sizes. Some V-ring commutators may have an inserted riser with a vented steel core, while others may have a stepped bore with a key-way alignment. Often, molded commutators are re-engineered and converted into a v-ring style commutator with a re-usable steel core. Having a re-usable steel core allows for more economical repairs and replacements (re-fills) in the future.

Whether repairing, replacing or re-engineering, we have the machining capabilities to get the job done right. This includes broaching keyways, threading, welding (arc, mig, & tig), boring & milling, cooling holes, vented bores, and stepped bores. Our machines range from boring mills, lathes, CNC lathes, CNC milling machines, broaching machines, automated shearing, brazing, to burn out ovens.

When failures occur, EMCC has the capacity and ability to work around the clock to manufacture or service the commutators and coils you need. 24/7 production capability allows EMCC to deliver unmatched quality, with the best turnaround times in the industry. Often, coils within 24-hours and commutators between 24-48 hours.