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		Precision Air Chucks 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. Uniform pre-determined holding pressure. Adjustable jaw force for semi-rough or fragile holding. Automatic or manual operation. Reliability Rotary joint air bearing eliminates metal-to-metal wear for extremely long life. Simple, sophisticated design: only four metai-to-metal parts in chuck, hardened center wedge, three master jaws. Materials: Meehanife body; steel master jaws; hardened steel center wedge. Balanced to operate at high speeds. Built-in, self-contained air cylinder Built-in safety features. The Precision Workholding Source Workholding leadership in accuracy, reliability, repeatability, concentricity and productivity. Chuck sizes: 3" (76mm) to 12" {305mm). "Coolant-thru" models. Precision top jaws shipped same day. Custom-designed jaw tooling service. Special jaws engineered and manufactured to your drawings or workpieces. Engineered workholding consultation services. One competitive price for complete workholding system including chuck, top jaws, custom made air tube assembly, rotary joint, hoses, operating valve and accessory kit. No hidden extras.




		Diaphragm Chucks Advantages of a diaphragm chuck : Completely sealed from harsh environments Jaw motion provides pullback feature No metal-to-metal moving parts Counterbalanced for higher operating speeds No lubrication required, maintenance free Uniform, adjustable clamping pressures Applications : Grinding, turning, boring, milling, measuring, inspection, material handling, robotics, CNC, EDM All Machines : Rotating, stationary, vertical, horizontal Universal workholding: external, thin-wall, rigid Guaranteed Accuracy Radial - .000020 inch T.I.R Axial - .000010 inch T.I.R. Productivity Simple loading and unloading. No indicating or adjusting. Automatic self centering Uniform, adjustable holding pressure Automatic or manual operation Reliability No metal-to-metal moving parts for extremely long life. Counterbalanced to operate at high speeds Built-in, self contained air cylinder Built-in safety features. The Precision Workholding source Workholding leader in accuracy, reliability, repeatability, concentricity and productivity. Standard chuck sizes from 3-inch to 10-inch Specials up to 18-inch Coolant thru or air thru models available Custom designed top tooling. Special jaws and back stops, engineered and manufactured to adhere to your work piece tolerance. One competitive price for a complete workholding solution.




		Top Jaws for Northfield Chucks Top jaws are a critical part of a precision workholding system. The same attention must be paid to jaw design and manufacture as to chuck machine performance if maximum accuracy is to be achieved at the workpiece. Northfield‘s experienced workholding engineers and specialized manufacturing facilities provide a unique capability for the design and manufacture of custom jaws. Based on customer drawings or workpieces, we design jaws to hold the most intricate or fragile parts. The appropriate material is used - from hardened and ground tool steel through aluminum to Delrin plastic and serrated diamond points. Jaws are created for external, thin-wall/rigid, over-the-shoulder, and hundreds of other unique solutions to exactly meet each workholding requirement to bring gauge block accuracy to your production pieces.

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