Northfield Precision Instrument Corp.
Island Park, NY 11558
Face Clamping Chuck features center mounted diaphragm.
Ten inch face clamping chuck has adjustable orienting pins and center mounted 3 in. diaphragm plate. Plate centers work piece before two contoured fingers swing into position to face clamp aluminum pump housings for distortion free boring at 4000 rpm.
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Diaphragm Chuck grips circulator pump bearing housings.
Model DPH-400W, 4 in. diaphragm chuck has special jaws and stop to grip circulator pump bearing housing in-between ears on root diameter. Four of six jaws are used because there are 8 ears. Pins are contoured to compensate for clamping diameter tolerance and diamond coated to provide additional grip. O.D. and bore are machined, and part is ejected with internal air piston.
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Diaphragm Chuck grips compressor scrolls.
7 in. Diaphragm Chuck is designed to grip cast-iron compressor scrolls on drive shaft hub for finish milling of scroll walls and face. 8 air-open/spring-clamp chucks are mounted on tombstone. Chucks have pulldown action to pull scroll onto fixed stop for zero Z-axis location. Jaws change out for 2 sizes of scrolls and repeat to 1/10,000 TIR. SAE or metric sizes range from 3 in.(76 mm) to 12...
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