Shrink-Fit Toolholder System

The Zoller redomatic features an integrated heat-shrink system with 10-kW capacity for shank diameters measuring from 0. 12" to 1. 26" (3 mm to 32 mm).

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The Zoller redomatic features an integrated heat-shrink system with 10-kW capacity for shank diameters measuring from 0.12" to 1.26" (3 mm to 32 mm). A heating time of 5 to 10 seconds is now also available for tools with minimum quantity lubrication (MQL).

The system can shrink tools suitable for MQL to a nominal length, with repeatable accuracy to 15 microns. Prior to the actual shrinking process, the MQL system detects the MQL screw in any possible, undefined position. By means of the company’s automatic length adjustment device, the screw is then moved to the lower stop position of the tool holder. The tool can thus be shrunk to its desired length.

Following the shrinking process, the screw is moved to a sealing position at the shank end of the tool to ensure that the cooling medium is directly transferred to the through-boring of the tool. According to the company, this procedure is performed automatically and thus independent of the operator. A vision system measures the tool cutting edge to calculate the nominal position.

 

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