At the recent GrindingHub 2026 exhibition in Stuttgart, NUM showcased new developments in its NUMROTO tool grinding software, including advanced feed-rate optimisation capabilities and the launch of the next-generation NUMROTO X platform.

The latest enhancements to NUMROTO are designed to help tool manufacturers improve productivity, flexibility and process reliability. A key innovation is the new feed-rate optimisation feature within NUMROTOplus, which automatically adjusts machining feed rates based on the calculated material removal volume generated through 3D simulation.

The technology is particularly beneficial for applications involving variable material removal, including grooving, tapered tools, multi-spiral cutters and step drills. By dynamically adapting feed rates to actual grinding conditions, manufacturers can reduce cycle times without compromising quality or tool life.

According to NUM, the new functionality has already demonstrated significant productivity gains in real-world applications. Grinding times for a multi-flute milling cutter were reduced by 14%, while the production of a stepped tool with insert seats delivered time savings of 29%.

NUM also unveiled NUMROTO X, a completely redeveloped software platform designed to provide greater flexibility and future-proof functionality for digital tool manufacturing. Built on a modular architecture, the new software introduces enhanced movement strategies between grinding operations to minimise idle time and improve axis efficiency.

Additional capabilities include a significantly expanded range of configurable geometric elements for complex tool designs such as barrel and circular segment cutters.

NUMROTO X is available in modules, including ‘Infrastructure’ and ‘Milling Cutter’, each offered in basic, advanced and professional tiers. This structuring allows manufacturers to tailor the software to specific production and tool design requirements while benefiting from a modern, scalable licensing structure.

More information www.num.com