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Sullitool / 5” Diameter Diaphragm Chuck

5” Diameter Diaphragm Chuck


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Northfield Precision Instrument Corporation, a leader in the design and manufacture of precision workholding chucks, introduces their special 5 inch diameter diaphragm chuck with morse taper number three female bore for locators. The chuck has a built-in pneumatic hammer to expel morse taper locators. The diaphragm centers the work piece and pulls it onto the MT-3 stops. The MT-3 type stops (not shown) are hardened and ground to 60/63 RC and ground between centers to guarantee perfect concentricity.

Northfield Precision designs and manufactures the world’s most accurate air chucks for any lathe, boring machine, grinder or VMC. Models include through-hole, high-speed and quick-change. Chucks are available in SAE or metric, in sizes from 3” (76mm) to 18” (457mm). Accuracies of 0.001” to 0.00001” (0.254m) are guaranteed. Custom workholding chucks and jaws are available and FREE engineering assistance is offered.