Your partner for rolling mill technology since 1982

About us

Exterior view of the HDW Diesing Walzwerkstechnik company building with modern metal façade and clear signage - representative company location in the industrial area.

For over 40 years, HDW Diesing has stood for maximum precision and reliability in rolling mill technology. As an owner-managed company based in Radevormwald, we support our customers worldwide – from the initial idea to the ready-to-install product.

Whether wire, tube or bar steel production – our products are used in rolling mills all over the world. A specially developed program for calibre calculation and the continuous expansion of our portfolio make us a valued partner in the industry.

Globally active, locally rooted

Wear parts for rolling mills worldwide

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Milestones of a family business

From the foundation to modern production

Horst Diesing founded Diesing Walzwerkstechnik GmbH in 1982. What began as a small business developed into a leading manufacturer of high-speed steel rolls.

Certified quality

So that you can rely on every detail.

As an ISO 9001-certified company, we stand for tested processes and consistently high quality. Our quality management is not an end in itself, but a lived practice – transparent, efficient and customer-oriented.

Certified according to ISO 9001

Structured workflows and documented processes for reproducible quality.

Tested procedures & control

Our production is subject to continuous control and batch tracking.

Focus on customer satisfaction

For us, quality is not a promise - it's standard.

Production at the highest level

Our production facilities in Radevormwald

HDW Diesing has grown steadily since it was founded. Our production area in Dahlienstraße was expanded as early as 1989. This was followed in 2004 by the construction of our foundry in the nearby Schüttendeich industrial estate – the foundation stone for our current casting qualities.

In the following years, a warehouse was also built there, which was later converted into a hardening shop. In 2011, another hall was added for pre-assembly. Since 2016, we have been manufacturing many core products completely in-house with our own hardening shop – for shorter delivery times and maximum quality control.