Now available in the UK from Floyd Automatic Tooling is the expanded range of MASA Microconic over-grip spindle collets. The precise and stable clamping of small workpieces in the sub-spindle of sliding-head machines has long been an issue for turned part manufacturers; MASA says it has revolutionised this ‘pain-point’ for manufacturers to deliver precision work-holding operations.

Until now, this solution has been available primarily on 20 and 32mm capacity sliding-head machines. However, MASA is now expanding the series to cater for manufacturers working on 10 and 12mm diameter capacity models.

To truly understand Microconic, manufacturers must first consider that only three things are in physical contact with the workpiece, the cutting tool, coolant/cutting fluid and workholding. MASA’s Microconic over-grip collet system ultimately allows manufacturers to rethink what is possible. This work-holding system consists of a cartridge and precision collet. The over-grip collet fits inside a cartridge and allows accurate adjustment before fitting directly into the existing collet sleeve with no machine adaptations required.

The patented over-grip collets can open up to 4mm larger than the clamping diameter and can also incorporate an ejection guide sleeve blank, which helps the end user to solve the difficulty of ejecting parts from the collets after machining. This allows manufacturers to reach behind flanges, parts with heads or any other enlarged feature.

Suitable for processing components with stepped features such as connectors, screws or other common parts, the over-clamp system can clamp over the protruding features and securely clamp on the main body of components. The collets are available with clamping diameters from 0.2 to 10mm, offering concentricity of 3-5µm.
For further information www.floydautomatic.co.uk