ARLA^® Spindle Unit

Precision Machining Unit for Various Applications

Model DA with direct servo drive	Models DB, DC with motor spindle
Model DX with facing head

ARLA Spindle Units are structured as modular components dedicated to a high variety of machining processes. The integration of servo drives in every unit is a dominant feature to be flexible in manufacturing lines or special purpose machine tools (also reasonable for retrofitting purposes). Furthermore the spindle units may be combined with ARLA Slide & Table Units to realize complete CNC controlled machining units with 1 or 2 axes (or even 3 axes).

There are models for various applications: model DA is used as a universal spindle unit with a directly driven servo motor, the models DB, DC are a powerful motor spindle unit (with water cooling).

All ARLA Spindle Units have excellent performance features:

• high-precision concentric running within a tolerance of 2 µm

• motor power between 10 and 37 kW (depending on the various models)

• speeds depending on the models up to 6,000 rpm

• spindle torques between 20 and 760 Nm (depending on the servo drive)

• tool clamp: HSK-A or HSK-C 50, 63, 80, 100, 125 (for DA, DB, DC)

The spindle units DX with facing head are innovative models with an integrated motor spindle and MAPAL tool system. The facing heads are – according to customer's requirements – available as single slide, or double slide heads optionally counterweighted to support higher spindle speeds. The facing head concept enables the machining of a fixed workpiece. Due to the new ARLA technology this concept is much better, more accurate and flexible so that the machining process is optimized. Please note the following typical applications: contour machining, facing and grooving, taper drilling and boring with a single tool, taper threading, further complex cutting applications, etc.

ARLA Spindle Unit DX (with integrated facing head option)

Due to ARLA's modular concept, all units (slide, table, spindle units) can be combined to a 1-, 2-, 3-axis machining system. See the sample configuration examples: ARLA Multi-Axis Systems.

A typical example of ARLA's spindle units is the endworking of shafts, pipes and tubes. In connection with ARLA's slide units and workholding fixtures a powerful CNC controlled endworking station can be realized (see the following figure).

	ARLA Endworking Station
	ARLA Clamping Device

Example of a tube/pipe-endworking station with ARLA Clamping Device

You can also visit us on several international shows in order to see the latest state of ARLA's machine tool technologies. The realization of ARLA machine products is presented on our site "Applications".

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