Product News: Machinery & Machining Tools

Double Diaphragm Chuck grips 2 different diameters.

Press Release Summary:

Double Diaphragm Chuck grips 2 different diameters.

Dec 26, 2012 - Manufactured out of 220 lb slug about 10 in. in diameter and 11 in. in length, Model DPH-800 is extremely accurate, running out about 1 micron on diameter along entire length, which is more than 15 in. Custom-made chuck is designed with air-detect feature so that machine will know when part is properly placed in chuck.

Northfield Precision Instrument Corp. - Island Park, NY

Original Press Release

Model DPH-800 Double Diaphragm Chuck

Press release date: Dec 21, 2012

Island Park, NY… Northfield Precision Instrument Corporation, a leader in the design and manufacture of precision workholding chucks, introduces their Model DPH-800 double diaphragm chuck. On this custom-made chuck, the client had to grip on two different diameters (top and bottom). You can see two sets of jaws in the picture. The part was exceptionally long so Northfield had to manufacture the body out of a 220lb slug about 10 inches in diameter and 11 inches in length. This chuck was extremely accurate, only running out about 1 Micron (on diameter) along the entire length of the chuck, which was more than 15 inches. The end user had to perform a grinding operation on the inside tapered bore of this part (a drive axel for a Volvo truck). This chuck also was designed with an air-detect feature so the machine will know when the part is properly placed in the chuck.

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.

For more information, please contact Northfield Precision Instrument Corp. Call Toll Free 1-800-810-2482 • Fax (516) 431-1928 • Email: