The History of DIENES

DIENES Group was founded by Karl Rudolf Dienes of Remscheid, Germany in 1913. His goal was to adapt cutting products and developments to meet customers’ exact requirements.

Today, the DIENES Group is led by the third and fourth generation of managing directors Rudolf Supe-Dienes and his son Julian Supe-Dienes. DIENES remains the world’s leading precision supplier in the fields of knives, knife holders and cutting systems for industrial applications.


Founded in 1954, DIENES USA operates from a modern 40,000 sq. ft. facility in Spencer, Massachusetts and services the United States and Canada. Our 50+ employees design, manufacture and distribute the full range of DIENES products, including circular knives, knife holders, and slitting systems with manual and automatic positioning systems.

Together with our customers, we work to ensure that operating processes become better and safer. High-quality products, comprehensive CAD consulting and reverse engineering, professional design, and support for rapid realization of projects make DIENES a full-service partner for all knife and system technology needs.

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