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Retrofitting instead of replacing: How used machines become like new

Junker Group's RETROFiT service provides many benefits for customers by modernizing used machines and bringing them up to the latest technical standards. Compared with purchasing a new machine, RETROFiT supplies savings of up to 60%. Renault Portugal SA took advantage of this program and opted to retrofit two Quickpoint cylindrical grinding machines.

Chatter Chat

In the 100th episode of CTE's Grinding Doc video series, Dr. Jeffrey Badger discusses his least favorite subject—chatter.

About Jeffrey Badger, Ph.D., and the Grinding Doc Video Series: Thanks to his work as an independent grinding consultant and the author of the "Ask the Grinding Doc" column in Cutting Tool Engineering magazine, Badger routinely receives questions about grinding from shops all over the world. Through the magazine column and this video series, he provides shops with the insight and guidance they seek.

Are grinding machine safety guards overdesigned?

Guards on grinding machines are particularly important for ensuring operator safety. Grinding wheels seldom burst, but when they do, there is a great risk of serious injury to the machine operator. Recent studies suggest, however, that the enclosures commonly used in gear grinding machines, for example, could be overdesigned at present. Investigations conducted by the VDW (Verein Deutscher Werkzeugmaschinenfabriken – German Machine Tool Builders' Association) and the Institute of Machine Tools and Factory Management (IWF) at TU Berlin reveal that it is possible to use safety guards which are up to 70% thinner, depending on the width of the grinding wheel. These findings are leading to changes in ISO standardization.