Gewefa Chuck toolholder features zero run out

UK – Gewefa has introduced its Grindtec range of hydraulic chuck toolholders designed to work with tool grinding machines.

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The company says it features a mechanism that enables adjustment of the run out at the tip of the (clamped) cutter to zero tolerance.

According to the UK-based company, this is achieved by compensating for run out errors between the tool tip and the spindle with the cutter adjustment via three 120° radial screws located in a ring fitted around the toolholder body.

The cutter shank is therefore slightly deformed to allow for accuracy of its position at a distance of 100 mm from the ring. And as a result, run out errors can be eliminated from the tool tip to the spindle.

On the Grindtec, the radial adjustment screws are protected by a cover ring that clips into position after the adjustments have been made.

An additional feature of the new toolholder is that its design of the outside form permits machining close to the cutter when used on grinding machines.

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