NORTHFIELD PRECISION INSTRUMENT CORPORATION 4400 Austin Blvd., P.O. Box 550, Island Park, NY 11558-0550 • (516) 431-1112 • Fax: (516) 431-1928 Call Toll Free 1-800-810-2482 www.northfield.com • e-mail: sales@northfield.

Precision Air Chucks Guarantee Accuracy Within Millionths NORTHFIELD the world leader in precision workholding air chucks. Guaranteed accuracy from 0.0001" (2.5µ) to 0.000010" (0.25µ) Applications • Turning, grinding, boring, milling, measuring, inspection, material handling, robotics, CNC, EDM. • All machines: rotating, stationary, vertical, horizontal. • Universal workholding: internal, external, thin-wall, rigid. Productivity • Finger-tip control can triple output. • Extremely simple loading/unloading. No indicating or adjusting. Can be used by unskilled operators. • Automatic self-centering....

NORTHFIELD U.S. AND METRIC All dimensions and weights listed in this catalog are in U.S. and metric equivalents. ORDERING INFORMATION To fit the custom-made air tube to your machine, we need: (1) I.D. of the spindle's rear. Within .002" (.051 mm). (2) Overall length of the spindle. (3) I.D. of the spindle's bore at midpoint for spindles over 25 inches (635mm) in length. TERMS: Net 30 days, F.O.B. lsland Park, NY Accessories Available • • • • • • • • Air tube assemblies. Manual operating valve. Adapter plate - machined to your spindle nose configuration. Stationary fixture plates. Air pressure...

Precision Air Chucks Guarantee Accuracy Within Millionths Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder steel, o-ring sealed Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 2 lbs. (.91 kg) with steel jaws: 21/2 lbs. (1.14 kg) Max. Recommended RPM* 6400 with AL-1-3-3/4 Max. Opening of Jaws .020” (0.51mm) on diameter Force per Jaw variable to 316 lbs. (144 kg) Repeatability concentricity — .0001 (2.5µ) T.I.R. max end lengths — .0001 (2.5µ) T.I.R. max Also available with .000010”...

350THS 3 Inch • 3 Jaw (.060” opening) (76mm) (1.52mm opening) 1 /4” (6.35mm) Through Hole Stationary Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder steel, o-ring sealed Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 2 1/2 lbs. (1.14 kg) with steel jaws: 2 7/8 lbs. (1.31 kg) Max. Opening of Jaws .060” (1.5mm) on diameter Force per Jaw variable to 316 lbs. (144 kg) Repeatability concentricity — .0001 (2.5µ) T.I.R. max end lengths — .0001 (2.5µ) T.I.R. max Also available with .000010”...

Precision Air Chucks Guarantee Accuracy Within Millionths Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder aluminum and stainless steel, o-ring sealed Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 71/2 lbs. (3.41 kg) with steel jaws: 8 lbs. (3.64 kg) Max. Recommended RPM* 5400 with AL-1-4-3/4 Max. Opening of Jaws .250” (6.35mm) on diameter Force per Jaw variable to 645 lbs. (293 kg) Repeatability concentricity — .0001 (2.5µ) T.I.R. max end lengths — .0001 (2.5µ) T.I.R. max Also...

450CB 4 Inch • 3 Jaw (.100” opening) (100mm) (2.54mm opening) 5 /16” (8.00mm) counterbore 11/2” (38.1mm) deep Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder steel, o-ring sealed Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 53/4 lbs. (2.61 kg) with steel jaws: 61/4 lbs. (2.84 kg) Max. Recommended RPM* 6300 with AL-1-4-3/4 Max. Opening of Jaws .100” (2.54mm) on diameter Force per Jaw variable to 625 lbs. (284 kg) Repeatability concentricity — .0001 (2.5µ) T.I.R. max end lengths...

Precision Air Chucks Guarantee Accuracy Within Millionths Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder aluminum and stainless steel, o-ring sealed, incorporated into the chuck body Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 61/3 lbs. (2.88 kg) with steel jaws: 71/2 lbs. (3.41 kg) Max. Recommended RPM* 6300 with AL-1-4-3/4 Max. Opening of Jaws .100” (2.54mm) on diameter Force per Jaw variable to 938 lbs. (426 kg) Repeatability concentricity — .0001 (2.5µ) T.I.R. max end lengths...

(150mm) (2.54mm opening) 1” (25.48mm) Through Hole Rotating (150mm) (2.54mm opening) 1” (25.48mm) Through Hole Stationary Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder steel, o-ring sealed Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 161/4 lbs. (7.39 kg) with steel jaws: 17 lbs. (7.73 kg) Max. Recommended RPM* 5500 with AL-1-6-1 Max. Opening of Jaws .100” (2.54mm) on diameter Force per Jaw variable to 1200 lbs. (545 kg) Repeatability concentricity — .0001 (2.5µ) T.I.R. max end...

Precision Air Chucks Guarantee Accuracy Within Millionths (150mm) (6.35mm opening) 1” (25.48mm) Through Hole Rotating (150mm) (6.35mm opening) 1” (25.48mm) Through Hole Stationary Body class 80 ductile cast iron Master Jaws hardened steel Wedge hardened steel Air Cylinder steel, o-ring sealed Top Jaws located on hardened steel pins in master jaws & secured by socket head cap screws Weight with aluminum jaws: 161/4 lbs. (7.39 kg) with steel jaws: 17 lbs. (7.73 kg) Max. Recommended RPM* 4200 with AL-1-6-1 Max. Opening of Jaws .250” (6.35mm) on diameter Force per Jaw variable to 1200 lbs. (545 kg)...