TPT March 2011

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42 March 2011 ›
Technology Update
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:
Website:
Endworking pipes with CNC machines
Arla tube endworking machine
Welding end preparation sample