Northfield Precision Air Chucks
Model: 425 (4")

Air chuck

 

Mounting plate for
OmniTurn spindle

Including:

  • air tube assembly, rotary joint, hoses and manual valve
  • one set of Al-1-4-3/4 aluminum top jaws
Material Body Class 80 ductile iron
Master Jaws 12L14 steel / Hardened
Wedge 12L14 steel / Hardened
Air cylinder Aluminum and stainless steel, o-ring sealed
Work jaws Located on hardened steel pins in master jaws ad secured
by socket head cap screws
Weight 7-1/2 to 8lbs. depending on jaws
Max recommended RPM 3000rpm
Max. opening of jaws .250"
Holding pressure variable to 650 lbs. per jaw
Capacity OD holding .062" to 3.75"
ID holding .5" to 3.75"
Repeatability Concentricity .0001" TIR max
End length .0001" TIR max
  • Special M function control for the Northfield chuck is available including Regulator, oiler, filter, and combined M function or manual push button control.
  • Also available with .000050" repeatability at extra charge
  • Master jaws move at perfect right angles to center line of spindle