Schunk’s Diaphragm Clamping System for Small Parts

The Vero-S SPM-138 diaphragm clamping system from Schunk allows the user to machine the contour of their workpiece into the SPM unit.

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The Vero-S SPM-138 diaphragm clamping system from Schunk allows the user to machine the contour of their workpiece into the SPM unit. When the Vero-S module is engaged with the Turbo function, the SPM-138 unit clamps evenly around the outside of the part.

Vero-S SPM Plus 138 can clamp workpiece sizes: 36 mm – 125 mm diameter, although the workpieces do not have to be round. The SPM unit generates clamping forces up to 50 kN.

The same module clamps small workpieces with the SPM Plus 138 top plate as well as pallets, clamping stations, existing fixtures, and tombstones with one or more clamping pins. The radial aligned clamping slides of the quick-change pallet system pulls in the clamping pin and locks it. This action retracts the diaphragm top plate to hold the workpiece with as much as 50 kN of force with a repeat accuracy of at least 5 microns (0.0002”). The Vero-S is completely compatible and interchangeable with the company’s previous pallet system, and the clamping pins work universally across the new line. Workpieces can be transferred from machine to machine or to a CMM accurately and seamlessly. Hardened stainless steel is used for all the functional components of the system, such as base body, clamping pin and clamping slide. This increases the modules’ life and reliability, and reduces maintenance.