Commutators

The Electric Materials Company has been a leader in commutator manufacturing for over 90 years. Our expertise is recognized throughout the world as our commutators are in service in some of the most demanding applications and harshest environments on earth. From the rail industry to the steel mills and even naval submarines, commutators built by The Electric Materials Company are trusted for their exceptional quality, performance, longevity, mechanical and electrical integrity. 

With complete start-to-finish commutator manufacturing capabilities, we provide a variety of clients with high-quality OEM commutators, rebuilt commutators and rotor bars. 

Many of the world's leading original equipment manufacturers specify motors built with Electric Materials commutators. The Electrical Materials Company is the largest domestic manufacturer of commutators.
 
The Electric Materials Company can produce commutators as small as 5" in diameter and as large as 12' in diameter.
 
Commutator Design
Whether you require a commutator based on an existing commutator model or an all-new commutator design, our engineers can create a commutator to meet your exact specifications. We have in-depth design capabilities and are registered to IS0 9001. The Electric Materials Company is fully compliant to the ISO 9001 Standard. What this means to you is that we can create our own engineering drawings reflecting your exact specifications.
 
Commutator Production
 
The Electric Materials Company has been producing quality high-end commutators for over 90 years. We can manufacture commutators built to existing model specifications or we can produce new commutators with all new steel parts. V-Ring, glass band and shrink ring designs are standard commutator types readily produced. We also offer wire banded assemblies, commutator bar packs and mica V-Rings designed and produced to your requirements. For additional information on our custom commutator production capabilities, please review our online commutator quote form.
 
 
 
Commutator Rebuilding and Refilling Services
 
The Electric Materials Company also specializes in the rebuilding and refilling of existing commutators. Our experience is second to none when it comes to refurbishing commutators. Units are disassembled and rebuilt with new copper and mica segments using the same quality assurance processes applied to new commutators. Our extensive database of commutator specifications and history ensures that your unit is rebuilt to meet the operational demands of the final application.
 
When a commutator comes in for repair, our engineers conduct a failure analysis and then disassemble the unit inspecting each component. If the steel components are within tolerance, they will be cleaned and reused. All new hard drawn silver bearing copper bars, mica segments and hardware will be utilized to complete the unit. Depending on the application and customer requirements, the assembly will be processed to the applicable engineering instruction resulting in a finished product that is of the highest quality and will provide years of trouble free service.
 


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