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The PTZ Ring Cutter, available from Saws UK, is a parting-off unit said to deliver around 60 per cent savings in material and cut up to four times faster than conventional methods.

Using the latest chip breaking carbide blades, originally designed for high speed billet cut off machines, kerf wastage is said to be reduced from 20 to 3mm.

Available on a 12-week lead time from the machine manufacturer, the sawing unit with pick-and-place clamping system can be retrofitted to an existing vertical lathe or supplied as a turnkey package.

The saw head rotates simultaneously with the lathe spindle to give a good surface finish whilst the workpiece is held securely by the patented clamping system.

Examples of cutting times are available to assist companies with costing: for example, ring from steel 18Cr Ni Mo 7-6, 1,060mm diameter with 65mm wall resulted in a parting-off time of 20 minutes.

Optional extras can be supplied with the kit such as drill, boring and tapping heads that can be used prior to parting off together with a deburring station to finish off the rings as they are removed by a pick and place unit.

Currently two machines are being installed in Nuremberg – one with 1,000mm capacity and the other with 2,000mm capacity to produce a predicted one million rings per annum.

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