Published 8/18/2011

Collet-Ready Rotary Tables, Indexers Reduce Job Cost

Collet-ready spindle rotary tables and indexers manufactured by Hardinge accept a variety of standard tooling to grip parts of various shapes and sizes.

Edited by: MMS Editorial Team

Collet-ready spindle rotary tables and indexers manufactured by Hardinge accept a variety of standard tooling to grip parts of various shapes and sizes. According to the company, users can output more parts per hour at a lower cost per part.

To increase part quality, parts machined closest to the spindle bearings provide the highest accuracy with less wear on the rotary device, the company says. A hardened collet, step chuck or expanding collet will seat directly in the company’s spindle with the machining process closest to the spindle. Minimal overhang from the spindle bearings ensure that spindle accuracy is transferred directly to the part being machined. Fixtures add weight to the spindle and move the cutting location further away from the spindle bearings.

The company built the same A2 spindles into their rotary tables and indexers as in their Super-Precision collet-ready turning centers. This increases precision and quickens setup and change-over without requiring an adapter, the company says. The collet-ready spindles accept collets, step chucks, Sure-Grip expanding collets, FlexC quick-change vulcanized collet systems, custom collets, manual chucks and Sure-Grip power chucks. The tooling can be shared with common CNC lathes. Collets and chucks provide automatic centering of the part whether it is round, hexagon or square and use less storage space than custom-made fixtures, the company says. An adapter can be used to continue using existing fixturing.

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