Commutator stones (or collector grindstones) are used in electric motor construction. To grind the commutator or slip ring. We manufacture commutator stones in the dimensions and grain sizes you require.

  • Commutator stones Zische

These commutator stones are used to process deformations of a commutator or slip ring of rotating electrical machines. By grinding the collector or slip ring, damage can be processed and the exact roundness and required roughness can be restored.


Are you looking for the right collector grindstone for your application or do you have individual questions about grinding? Contact us now by phone, e-mail or contact form – we will be pleased to help you!

We analyse your grinding tools – free of charge!

At your request, we examine your existing grinding tools free of charge using three different measuring methods: modulus of elasticity (Young’s modulus), Zeiss-Mackensen method and HZ-Rockwell. With the results of the analysis, we are able to make statements about the suitability of the grinding tools for your grinding process and optimize their composition.