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Leader rings the changes with RotoRi

Leader rings the changes with RotoRi
Leader rings the changes with RotoRi
Leader rings the changes with RotoRi
Leader rings the changes with RotoRi

Tamworth-based workholding specialist, Leader Chuck Systems, has recently expanded its product portfolio with the addition of the RotoRi range of chuck jaw boring rings. Able to precisely support the ‘truing’ of jaws fitted to manual or power chucks the RotoRi sets have been specifically designed to be used to bore, turn or grind jaws very accurately under a clamping pressure that reflects that required to hold the workpiece.

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Available in seven standard sets designed to match the diameter range of the machine tools on the shopfloor as well as the types of chucks used, these multiple-patented innovative ring sets allow precise machining of the jaws thanks to the complete adjustability of the segments.

Creating perfectly concentric bores on hard or soft jaws, the RotoRi boring rings allow fine adjustments for minimal skimming of jaws, so only the minimum amount of material from the jaw face ever needs to be removed maximising the life of the jaws. As they can be through bored in one operation it results in better T.I.R (total indicated run out) for any subsequently machined parts. The patented curved segments support easy readjustment of the clamping diameter which saves both time and tool costs.

Managing Director, Mark Jones, says: “Every machine shop that has to regularly set up chucks for the production of accurate components can benefit from the advantages these ring sets offer. First, the precision adjustment saves jaw usage as only fine skims are required to achieve the accuracy required; secondly it reduces the time wasted looking for, or making, turning clamping rings; and, finally, one RotoRi set can be used to support many chucks.”

Made from high-tensile steel the RotoRi sets range from 10 to 52 rings for chuck up to 1,200 mm diameter. For 3-jaw chucks each ring consists of three curved segments (3 x 120°) that can be used both on the internal and external diameter of the jaws to support OD and ID workholding.

For 2-, 4- and 6-jaw chucks Leader recommends the RotoRi-Quattro sets with four (4 x 90°) or RotoRi-Six with six segments (6 x 60°). A patented expansion joint is provided to ensure even power distribution.

To compensate tor large counter-bore tolerances of different jaw manufacturers RotoRi offer the flexible and patented clamping bolt ‘RotoFix’. With the ability to adjust up to 2 mm there is no need to remachine any screw counterbores.

“If the chuck-to-workpiece interface is not optimised then any investment made in a high precision machine tool can be negated. The RotoRi boring ring sets offer a simple and cost-effective way of ensuring the accuracy is achieved and maintained,” Mark Jones concludes.

For more information click here


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