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.
24/7 Emergency Repairs
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.