We manufacture machines for processing individual sheets and sheet packages.

Standard machines for transformer production

Welding machine type ASM 60 – 120
Welding machine type ASM 60 – 120

Our core sheet processing machines allow for the economic manufacturing of transformers, throttles and transmitters using standardised transformer sheets. Our machine range includes manual nesting machines for small batch production and goes all the way up to automated welding machines for use in assembly lines. For separated, snap-in core sheets, we have developed special tamping machines which, together with the appropriate sheet types, allow for the cost-effective manufacturing of small, medium and large batches of EI transformers. As long as the manufacturing task comprises the quick and reliable production of sheet packages within tolerances, our packaging machines can be used economically. Our standard machines:

  • manual nesting machines for EI sheets
  • tamping machines for separated EI sheets
  • welding machines for EI sheets

Special machines

For the production of customer-specific sheet packages, we develop and manufacture special machines which are specially adapted for the product requirements such as:

  • laser and TIG welding machines
  • packaging machines
  • pushing devices
  • measuring and pressing machines

Erich Grau GmbH
Stanzwerk für Elektrobleche
Uhlandstr. 3-7
D-74372 Sersheim 

Tel.: 0 70 42 / 83 63 - 0
Fax: 0 70 42 / 83 63 - 63 


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Medical technology

Founded in 1952, ERICH GRAU GMBH is today a renowned, internationally active company in the field of stamping technology.

All of our customers' requirements are handled with great care and attention. This applies for simple items as well as for technically challenging parts.