The commutator in machinery and plant engineering is a device for current reversal in electrical machines. In this process, a special measuring head ensures that its concentricity is precisely determined.
During the commutator concentricity check, the true running and the long or short stroke are documented and graphically represented. Any defect detected on the commutator surface can be reworked, if necessary. In this process the commutator is stripped or ground and the mica coating milled out. The commutator can thus be restored to mint condition if enough commutator coating is available for processing. This minimizes brush wear and brush sparking.

Preventive maintenance work

Precise diagnostic action

This inspection can also detect system or control errors, such as burnouts on the commutator surface caused by the current running through the commutator and rotor winding when the rotor is not turning.
The commutator concentricity check can be used to identify unplanned changes and to plan any downtime measures in advance.

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Our goal is your benefit: Optimum downtime planning for maintenance work

Your benefit

  • Identification of system and control errors
  • Burnouts are quickly and reliably identified
  • In many cases it is possible to restore the commutator to its like-new condition