Press Release Summary:
Collet models 1C and 3C for Spindle Headstock Assemblies can be used as original equipment in lathes, grinding machines, and special purpose machines, including the manufacture of medical and electronic components. Accepting collets directly into spindle without use of additional collet fixtures, capacities range from 1/64 to 1-3/4 in. for OD holding, 3/4 to 6 in. for step chuck OD holding, and 1/4 to 6 in. for ID holding with expanding collets.
Original Press Release:
Dunham Expands Spindle Line with 1C & 3C Collet Models
The highly accurate line of Spindle Headstock Assemblies from The Dunham Tool Company, Inc. now includes 1C and 3C Collet models (in addition to 5C, 16C and 3J) to permit the use of a wider range of collet sizes. This permits the Spindle Headstocks to be provided for a greater range of applications, including the manufacture of medical and electronic components. Each Dunham Spindle/Headstock model can be used as original equipment in lathes, grinding machines and special purpose machines, as well as bench mounted, used to replace worn secondary workheads on lathes or cylindrical grinders. Accepting Collets directly into the Spindle without the use of additional collet fixtures, Dunham Spindle capacities now range from 1/64" (1C) to 1-3/4" (3J) for OD holding, 3/4" to 6" for step chuck OD holding, and 1/4" to 6" for ID holding with expanding collets. Models are available with Plain nose, 4° taper nose (which accept closing rings for Hardinge step chucks up to 6" diameter) , as well as American Standard Spindle Noses A-3, A-4 and A-5 for easy and highly accurate mounting of Jaw Chucks and special fixtures. Models also include standard units with Dunham's Pneumatic Collet Actuators. Dunham's Spindles are rated for up to 6000 RPM. All Dunham products are made in America and sold through a select group of industrial supply and machine tool distributors. Other Dunham workholding devices include bar stock pullers, collet chucking systems, vacuum chucks, dead stop step chucks, expanding collets and traditional contracting collets. For further information: The Dunham Tool Company, Inc., 3 Dunham Drive, New Fairfield, CT 06812 or visit our website at www.dunhamtool.com.