Tool manufactures high quality 5c air collet chucks, 2j air
collet chucks, 16c air collet chucks and 3j air collet chucks as
well as many other sizes. Our lathe chuck can be used in both
rotary and stationary applications, and will mount to any
American Standard or Camlock style spindles with the use of a
Dunham spindle mounting adapter.
Dunham Tool chucks, with a
precision collet closer and collet actuator, are commonly used
as a lathe chuck, as well as with cylindrical or surface
grinders, rotary tables, machining centers and other equipment.
Dunham will provide the spindle adapter to accommodate your
workholding specification. This air lathe chuck is designed for
absolute concentricity adjustability.
Dunham air collet chucks are designed for secondary chucking,
not for through work, and accept all 5c collets and Dunham
expanding internal collets for I.D holding from 1/4" to 6"
diameters. Models are also available for 2j, 3j and 16c collets.
Adjustable concentricity screws permit adjusting to 0.0005"
TIR. Internal stops eliminate length changes due to drawback.
Foot or hand valves free hands for efficient part handling. A
special air union permits spindle speeds to 3,500 rpm. Heat is
not generated in the air collet chucks due to the external
mounting of an air union.
Collet sticking is eliminated by a spring-loaded piston. Shop
air pressure activates a large piston, closing the collet. The
piston is spring-loaded and returns when air pressure is