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Precision Air Chucks

(56) OVERVIEW
Northfield Precision Air Chucks, also known as sliding jaw chucks, are the benchmark for high precision quality, efficient, and easy to use air chucks. The Northfield Precision Air Chuck is extremely simple to load and unload and can be used by any operators. The jaw clamp force can also be adjusted for delicate holding, and extremely convenient for most thin wall work pieces. Once properly mounted, all Northfield Chucks, will automatically center your workpiece. If you are looking for an accurate chuck that can handle many different types and size parts, then the Northfield Precision Air Chuck is the right choice for you.

For any custom chucks, contact Northfield Engineering staff for additional information. (LINK)

STANDARD FEATURES

Air Actuated - Air driven actuation is easier and cleaner than hydraulic actuation because it does not require a hydraulic pump, which means more control over the grip force - allowing a range of medium to delicate part gripping.
Additional Actuation Options - There are multiple ways to power the Northfield Precision Air Chuck, including spring clamp-air open, or air clamp-spring open. Other custom actuation applications are also available upon request.
External and/or Internal Grip - All standard precision air chucks can be used for external and/or internal gripping. Functions include hard turning, grinding, assembly, milling, and inspection applications. Contact a Northfield Engineer if you are interested in adding internal grip to your chuck.
Stationary Capable - All Northfield chucks can be used for stationary applications as well as rotating applications.
Rotary Tables - Northfield chucks are capable of being used on 5-axis machines.
Rotary Joint Air Bearing - Eliminates metal-to-metal wear for extremely long life.
Hardened and Ground Chuck Components - Northfield’s chucks are developed using high strength alloy steels with all critical components hardened and ground to various Rockwell "C" scales.

SIZE BODY

3 in, 4 in, 5 in, 6 in, 7 in, 8 in, 10 in, 12 in - Northfield chucks come in various sizes to accommodate different machine space, grip force, RPMs, and work piece sizes. Please contact an engineer to learn more about what size chuck is best for your product. (LINK)

OPTIONAL FEATURES

Dead Stop - Your part is banked against a stopping surface that ensures the part doesn’t move during the application, and has a consistent datum location.
Spring Clamp - If there is an air failure, a spring closed chuck will not release the work piece.
External/Internal Grip Pullback - Jaws can be custom designed to allow work pieces to be pulled back against a dead stop locating surface, in addition to the internal or external grip.
High RPM - Max. speed 6000 RPM. Chuck specific - not all chucks included.
Coolant or Air Passages (popular option) - Coolant through can be used for flushing chips away from the chuck. Alternatively, air can be used for detecting if a part is properly seated.
Quick Change Body - Fast changeover chucks for reduced set-up time, which requires no reboring of jaws.
Wide Opening Jaws - Each size chuck has a wide opening variation. See technical specs for a chuck that meets your needs.
Specialty Application Jaws - Custom designed, hardened and ground workholding jaws to meet your product’s needs.
Quick Change Jaws - When mounted to the same model chuck, quick change jaws significantly reduce set-up time. Quick Change jaws are not chuck specific, can be easily changed over, and will repeat like our hardened and ground standard jaws.
Drawbar Operated - Manual drawbar solid or tube.
Air Detect/ Part Seat Sensing - Part seat sensing is a safety measure that tells the machine that the part is clamped properly in the machine and to start the cycle.
Low Profile - Custom accommodation for machines with less space for chucking components.

TECHNICAL SPECIFICATIONS (ALL MODELS)

Max. Speed - 6000 RPM. Chuck specific - not all chucks included.
Repeatability (Max. Concentricity) - 0.0001" T.I.R.
Repeatability (Max. End Lengths) - Guaranteed accuracy from 0.0001" (2.5µ) to 0.000010" (0.25µ)
Weight - 2lb to 123lb

For additional technical specifications and product prints, please see here.

Can’t find what you’re looking for? Contact a Northfield Engineer directly. Here

Diaphragm Chucks

(32) OVERVIEW
Northfield Diaphragm Chucks are the most accurate chucks in the world and are the fastest to open and close out of all of the chuck types (scroll, manual, hydraulic, sliding jaw). They require no maintenance since they are completely sealed from any dirt or oil, and have no metal-to-metal sliding components. Therefore, their expected life span can go on for millions of cycles. All Northfield chucks are self-centering. And if you are looking for high accuracy, then the Northfield Diaphragm Chuck is the way to go.

For any custom chucks, contact Northfield Engineering staff for additional information. (LINK)

STANDARD FEATURES

Air Actuated - Air driven actuation is easier and cleaner than hydraulic actuation because it does not require a hydraulic pump, which means more control with the grip force - allowing a range of medium to delicate part grip. It's also simpler to set up.
Additional Actuation Options - There are multiple ways to power Northfield chucks, including spring clamp-air open, or air clamp-spring open. Other custom actuation applications are available upon request.
External Grip - All standard diaphragm chucks focus on external grip only, for hard turning, grinding, assembly, milling, and inspection applications.
6 Standard Jaw Pads - The diaphragm chuck comes standard with 6 jaw pads. The number of jaws can also be customized based on your product needs.
Stationary Capable - All Northfield chucks can be used for stationary applications as well as rotating applications.
Hardened and Ground Chuck Components - Northfield’s chucks are developed using high strength alloy steels with all critical components hardened and ground to various Rockwell "C" scales.
Rotary Tables - Northfield chucks are capable of being used on 5-axis machines.
Totally Sealed - No maintenance.
Consistent Grip Force (Counter Balance) - Counterbalanced jaw force ensures no loss of grip force at elevated RPMs.
High RPM - With properly designed top tooling these chucks can achieve a speed of 15,000 RPM Max.
Quick Change Jaws - Quick change tooling significantly reduces set-up time. All diaphragm chucks are designed with jaws that repeat to 1/10,000 T.I.R. when removed and re-installed. These jaws will also repeat on other chucks of the same model.

CHUCK SIZE (DIAMETER)

3 in, 4 in, 5 in, 6 in, 7 in, 8 in, 10 in - Northfield chucks come in various sizes to accommodate different machine space, grip force, RPMs, and workpiece sizes. Please contact an engineer to learn more about what size chuck is best for your product. (LINK)

OPTIONAL FEATURES

Dead Stop - Your part is banked against a stopping surface that ensures the part doesn't move during the application, and has a consistent datum location.
Spring Clamp - If there is an air failure, a spring closed chuck will not release the work piece.
Coolant or Air Passages (popular option) - Coolant through can be used for flushing chips away from the chuck. Alternatively, air can be used for detecting if a part is properly seated.
Quick Change Chuck Body - Fast changeover chucks for reduced set-up time, which requires no reboring of jaws.
Number of Jaws - Northfield Diaphragm Chucks can be made starting with a single jaw and can have as many jaws as needed.
Specialty Application Jaws - Custom designed, hardened and ground workholding jaws to meet your products needs.
Drawbar Operated - Manual drawbar solid or tube.
Air Detect/ Part Seat Sensing - Part seat sensing is a safety measure that tells the machine that the part is clamped properly in the machine and to start the cycle.
Low Profile - Custom accommodation for machines with less space for chucking components.

TECHNICAL SPECIFICATIONS (ALL MODELS)

Max. Speed - 15,000 RPM
Repeatability (Max. Concentricity) - 0.000020" T.I.R.
Repeatability (Max. End Lengths) - 0.000010" T.I.R.
Weight - 3.4 lb to 68.7 lb

For additional technical specifications and product prints, please see here.

Can't find what you’re looking for? Contact a Northfield Engineer directly. Here

Precision Collet Chucks

(12) EXTERNAL COLLET CHUCK OVERVIEW
Northfield Collet Chucks provide simple workholding applications for a variety of part sizes that require a significant amount of clamp force. Northfield Collet Chucks use the same adapter, rotary union, and air tube as our precision air chucks and diaphragm chucks. It is easier to change collet sizes and adjust grip force for different applications with a Northfield Collet Chuck than it is for most hydraulic style collet chucks.

INTERNAL COLLET CHUCK OVERVIEW
Northfield has a custom line of internal collet grip chucks available. These chucks are specifically designed for custom applications, allowing a delicate or aggressive part holding technique with the same accuracy as an external grip collet chuck.

For any custom chucks, contact Northfield Engineering staff for additional information. (LINK)

STANDARD FEATURES

Air Actuated - Air driven actuation is easier and cleaner than hydraulic actuation because it does not require a hydraulic pump, which means more control with the grip force - allowing a range of aggressive to delicate part gripping. It's also simpler to set up.
Additional Actuation Options - There are multiple ways to power the Northfield Precision Air chuck including spring clamp- air open, or air clamp-spring open. Plus, other custom actuation applications upon request.
External Grip (Accepts Standard Collets) - Collet jaws are screwed inside the internal diameter and accept the standard industry collets: 3C, 5C, 16C, 3J, 25C, any other types.
Internal Grip - The internal collet chuck is used for gripping the internal diameter of workpieces and pulling the work piece face against a dead stop. Accepts J-Loc internal grip collets.
Stationary Capable - All Northfield chucks can be used for stationary applications as well as rotating applications.
Rotary Tables - Northfield chucks are capable of being used on 5-axis machines.
Dead Stop - Your part is banked against a fixed stopping surface that ensures the part doesn’t move during the application.
Hardened and Ground Chuck Components - Northfield's chucks are developed using high strength alloy steels with all critical components hardened and ground to various Rockwell "C" scales.

SIZE BODY

4 in. (100mm) - Recommended size if you have a smaller product or if you are strictly working with 5C or 3C collets.
6 in. (150mm) - Recommended size if you have a larger product and/or want to be able to grip the full suite of standard collets (including 3J and 16C).

OPTIONAL FEATURES

Dead Stop - Your part is banked against a stopping surface that ensures the part doesn't move during the application, and has a consistent datum location.
Spring Clamp - If there is an air failure, a spring closed chuck will not release the workpiece.
Coolant or Air Passages (popular option) - Coolant through can be used for flushing chips away from the chuck. Alternatively, can be used for detecting if a part is properly seated.
Quick Change Body - Fast changeover chucks for reduced set-up time, which requires no reboring of jaws.
Specialty Application Collets - Custom designed, hardened and ground workholding collets to meet your product's needs.
Drawbar Operated - Manual drawbar solid or tube.
Air Detect/Part Seat Sensing - Part seat sensing is a safety measure that tells the machine that the part is clamped properly in the machine and to start the cycle.

TECHNICAL SPECIFICATIONS (ALL MODELS)

Max. Speed - 15,000 RPM
Repeatability (Max. Concentricity) - 0.0001 (Based on the quality of the collet)
Repeatability (Max. End Lengths) - 50 millionths (1.27µ) (Based on the quality of the collet)
Weight - 7.5lb / 3.40 kg to 13 lb/5.89 kg

For additional technical specifications and product prints, please see here.

Can’t find what you’re looking for? Contact a Northfield Engineer directly. Here

Standard Jaw Blanks

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