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    • V-ring-commutators

    With the oldest direct current motor commutator technology in the world, this commutator is still the most commonly used worldwide for traction or for large commutators that cannot be molded.

    With this technology, the commutator is installed by tightening two steel cones that constitute the hub, which is insulated from the commutator segments by two mica cones. The biggest advantage of this type of commutator is that it can be completely dismantled and then reassembled. Therefore, the entire copper segment pack can be changed after several “maintenance” grindings or an isolated repair can be carried out easily, for example, following segment movement.

    This technology has virtually no size limits. In fact, mechanically welded-hub commutators can be produced that are several meters in diameter. However, it comes at a cost much higher than a molded commutator as its production, assembly and stabilization cannot be automated and are effectively performed manually.

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    Nelco-Commutators is a 30 years old company involved in commutators design and manufacture. With more than 100 thousands pieces builded from the beginning, Nelco acquired a large experience of all type of Commutators. Most of the industrial production is now using Molded type but nelco is also able to build or rebuild your V-rings commutators from 3inch to 6 feet.

    From June 2016, Nelco is integrated in the Drekan-Group, a French based company specialised in rotating machine repair witch operate 8 repair/rewind shops in the country. The group launch Nelco-Service, a DC coils manufacture and an DC armature repair shop to complete its commutator offer.
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