MicroCentric Corp. (Plainview, NY) has a new line of high precision front actuated through hole air chucks. The FA series chucks feature a stationary air distributor ring, incorporating special profile seals and locking check valves to maintain air pressure while the chuck is rotating.

Standard repeating accuracy of the FA series chucks is .0001 in (0.002 mm) TIR. In addition, FA series chucks are available with the patented QC precision jaw locating system. The unique QC system maintains .0002 in (0.005 mm) maximum workpiece runout after jaw change without remachining top jaws. The QC system also enables the interchangeability of finished machined jaws between different chucks and still maintains maximum workpiece runout within .0008 in (0.02 mm).

FA series chucks are available in 3 and 2 jaw configurations in the following sizes:

? 6.00 in (150 mm) diameter with 1.33 in (34 mm) through hole

? 8.00 in (200 mm) diameter with 2.00 in (51 mm) through hole

? 10.00 in (250 mm) diameter with 3.00 in (77 mm) through hole

Workholding is a critical factor in the overall quality of a machined workpieces. These precision chucks are designed and manufactured for machining operations such as turning, grinding, and rotary table applications requiring close dimensional tolerances, concentricity, squareness, and parallelism. These precision chucks are also used in inspection applications. Clamping force is adjusted by regulating the input air pressure to enable thin walled parts to be clamped with minimal distortion.

MicroCentric manufactures a full line of precision jaw chucks, diaphragm chucks, quick-change collet chucks, and also specializes in designing and manufacturing hardened and precision ground top jaws, part stops, and other tooling for specific machine and workpiece applications.

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MicroCentric Corporation, 25 Terminal Drive, Plainview, NY 11803, 800-573-1139, Fax: 516-349-9354, www.microcentric.com .