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The ACS LP series “ultra low” profile rotary stage with an integrated ER collet chuck provides automated material handling capability for a range of materials and applications. The ER collets provide runout characteristics for applications requiring precise gripping of tubular material, and they are available in sizes that support tube diameters ranging from 0.5 mm to 16 mm. The collet is retained with a threaded retaining cap that enables change-over. It is configured in a (normally) closed mode, where clamping force is applied when no air pressure is present.
Air is delivered to the collet or gripper assembly through a rotary union. According to the company, this “non-contact” rotary-union design promotes virtually maintenance-free operation. The combination collet chuck/rotary union assembly is also said to have less friction and inertia than external assemblies created from discrete parts. This reduced inertia can improve system performance by allowing high peak acceleration, thus reducing position error during laser machining operations.
The series uses direct-drive brushless motor technology to maximize positioning performance. This technology has been developed for 24/7 production environments because there are no brushes to replace and no gear trains or belts to maintain. Direct- drive can also provide quick acceleration and high top speeds, when compared to gear- or belt-driven mechanisms, the company says.
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