• 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.

• 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).

• 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.
  

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