BK Stanz- und Umformtechnik

Tool design & construction / Sheet Metal forming

Success – a matter of shape

Our family business consists of two companies – the Berthold Kunrath GmbH (Berthold Kunrath Ltd) with it’s highly productive and modern tool making and fixture construction departments along with the BK Stanz- und Umformtechnik (BK die cutting and forming technology Ltd) which produces high-precision and complex metal parts using mechanical and hydraulic presses with press forces of up to 800 t.

What makes our company stand out is that we offer the entire spectrum starting with the tool design and construction to cutting techniques, the tool assembly and try-outs as well as the production of the parts. And with the use of our 3D laser technology we are able to fulfill our clients’ requests in a fast and effective manner.

Since 1996 we are certified as per DIN EN 9001 and since 2016 as per DIN EN 14001 (both KIWA International Cert GmbH).

Berthold Kunrath GmbH
BK Stanz- und Umformtechnik

0049 (0)6853 – 91450/914540




Our experts in the design and construction department are equipped with the latest data processing and transfer systems.



Tool Making

We manufacture all types of complex tools, primarily for the automotive, engineering and building industry.


Sheet Metal Production

In our manufacturing plant, we use progressive, transfer and manual tools with a length of up to 4000 mm for the part production.

3D Laser Technology

As well as offering laser machining to create fast and cost-effective prototypes and small series, flexible laser processing can also be commissioned.