TPT March 2011

T echnology U pdate

Endworking pipes with CNC machines

ARLA Maschinentechnik GmbH, Germany, builds CNC-controlled endworkingmachines that are available for single-sided and double-sided machining. The machine concept is based on a solid frame with one or two precise machining units, including a unique concentric work- holding technology. The machine works like two separate CNC lathes, operating independently for each side. The principal difference is that this endworking concept comprises a fixed workpiece and revolving tools.

All machining units are directly driven by servomotors and are therefore stiff, powerful and designed for high torques. In order to realise several machining steps, the units are built with integrated motor spindles, optionally available with tool changing systems. Typical applications are OD and ID turning, facing, planing, tapping, bevelling, threading, grooving, chamfering, boring, drilling and milling – in particular for the welding end preparation of pipes and tubes.

The new series of ARLA spindle units can be used either with HSK interface or with integrated facing heads. The machining of complex contours with a single tool system is realised by facing heads that are implemented in ARLA’s DX machining units, as used for welding end preparations. Arla Maschinentechnik GmbH – Germany Fax: +49 2267 6585 70

Email: info@arla.de Website: www.arla.de

Arla tube endworking machine

Welding end preparation sample

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M arch 2011

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