The 620/350 CNC TG “twin-grip” centerless grinder runs a 24" OD × 14" wide grinding wheel with a 50-hp spindle. With a new wheel, it can grind a workpiece with a maximum OD of 8". It uses a Fanuc control and is capable of heavy stock removal as well as achieving sub-micron tolerances.
The upgraded casting design features a larger and heavier bed for strength and support under slides and wheel housings. According to the company, the deeper bed design quickly carries away coolant and swarf in high-production applications. The machine also includes oversized modular dresser assemblies with linear needle roller bearings for accurate and repeatable wheel dressing, the company says. Dressers (even on CNC 1 models) are electrically driven and programmable. The full enclosure is designed for safety and air quality control. Also, CNC software enables simple programming of complex forms, the company says. Various machine models are available with 10- to 25-hp spindles and grinding wheel sizes ranging from 12" × 4" to 24" × 20".
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