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+39 0424 85688 info@cidoniostampi.it ISO 9001:2015 · TÜV SÜD
Stamped electric motor laminations

Technical guide

Electric motor lamination dies

Dies for electric motor laminations blank stators and rotors with consistent slot and tooth geometries and minimal burrs over large volumes: progressive dies are used, with WIDIA or sintered-steel cutting edges, active parts finished by wire EDM and tryout with dimensional inspection.

Quick answer

In brief

Dies for electric motor laminations blank stators and rotors with consistent slot and tooth geometries and minimal burrs over large volumes: progressive dies are used, with WIDIA or sintered-steel cutting edges, active parts finished by wire EDM and tryout with dimensional inspection.

Key requirements

  • Consistent slot and tooth geometries
  • Low burrs so as not to compromise the lamination stack
  • Long cutting-edge life
  • Active-part finishes between 0.1 and 0.2 Ra

Mistakes to avoid

  • Underestimating burr on the stack
  • Choosing cutting-edge materials unsuited to the volumes

How Cidonio Stampi works

Since 1969, we have been designing and building sheet metal dies in Rosà (VI): feasibility study with the customer, 3D CAD design, construction in our own toolroom and tryout with dimensional inspection. UNI EN ISO 9001:2015 certification by TÜV SÜD.

Cidonio Stampi production floor in Rosà, Vicenza (Italy)

FAQs

Do you make dies for stators and rotors?

Yes, we design and build dies for blanking stator and rotor laminations.

What surface finishes do you achieve?

Between 0.1 and 0.2 Ra with wire EDM and a superfinishing unit.

Do you have a project?

Send drawings or 3D models: our technical office replies within 24 working hours.

PDF, STEP, IGES, DXF, DWG, ZIP, JPG or PNG – up to 4 files, 20 MB each. Files are used only to assess your request.

Send us your drawing. Technical reply within 24 hours.

Talk directly to the people who design and build your die: no middlemen, reliable lead times and certified quality since 1969.

  • Since 1969
  • ISO 9001 · TÜV SÜD
  • Reply in 24 h
  • Sheet 0.05–12 mm