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Since 1958, Dunham Tool has designed and manufactured innovative, high quality and high accuracy workholding, toolholding and spindle solutions for manufacturing industries worldwide. |
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Dunham Tool Collet Chucking Systems:
5C, 16C, 3J Thru Hole Collet Chucking Kits:
Lathes, Rotary Tables, Grinders, Special Machines:
Dunham Tool has improved its Thru Hole Collet Chucking Systems so that they are more easily and efficiently adapable to Lathes, Rotary Tables, Cylindrical and Surface Grinders and Special Machines. Please see below for a Dunham CAD Layout Drawing for complete Dunham Thru Hole Kits.
 | | Dunham Collet Chucks 5C, 16C, 3J Drawtube Style |
These Dunham Collet Chucks are designed for use with a Drawtube (existing on the machine or provided by Dunham) and therefore are used for Thru Hole applications. They are designed for direct mounting to all American Standard, Camlock and Flat Spindle Nose configurations (A2-4, A2-6, A2-8, D1-4, D1-6, D1-8, 110MM, 140MM, etc.) as well as all Rotary Table makes and models and many special machine designs. The precision Dunham Collet Chuck design also provides for highly precise concentricity and positioning adjustment, as well as other unique design features.
Dunham Air Collet Closers (Cylinders) are designed for mounting to the rear of all Lathe Spindles and Rotary Tables as well as many Special Machine applications; all Dunham Mounting Adapters are manufactured specifically for all Lathes, Rotary Tables, Grinders and special machines. A Dunham Drawtube connects to the
 | | Dunham Air Collet Closer 5C, 16C, 3J |
Dunham Air Collet Closer, and the Drawtube goes through the machine Spindle where it connects to the Dunham Collet Chuck and Collet installed on the front end of the Spindle, Rotary Table, etc. Dunham air devices are specified because air pressure is highly adjustable and because of the high speed of air pressure actuation. Workholding pressure is therefore highly adjustabe for a wide variety of thin wall, fragile, high surface finish or other special needs or standard workpieces.
Ideal for use (or retrofit) on Lathes, Rotary Tables, Special Machines, Dunham Spindles and many Cylindrical Grinders, the Dunham Air Collet Closers/Cylinders are double acting (designed for positive air activation and deactivation). Dunham Air Collet Closers are designed for typical Lathe applications of 2000 to 6000RPM as well as slower 'controlled' rotation applications like CNC Rotary Tables, Rotary Welding/Laser machines, etc. They are highly durable and the mechanical actions are highly accurate and repeatable. Dunham Thru Hole Collet Chucking Kits include the appropriate Dunham Collet Chuck and Air Collet Closer as well as all Dunham Mounting Adapters designed specifically for American Standard, Camlock Spindles and all Rotary Table and Grinder nose configurations. Also included are Dunham Drawtubes and Hand or Foot Valve Kits. Please see below for a Dunham CAD Layout Drawing for complete Dunham Thru Hole Kits. Please call us for technical or pricing information on complete Kits or individual units.
 | | Dunham Thru Hole Collet Chucking System
5C, 16C, 3J Kits available |
Dunham Collet Chucking Systems are one of a wide range of Dunham workholding and spindle devices, 50M Spindle Headstocks, Cartridge Spindles, Collet Chucks, Collet and Chuck Actuators and Cylinders, Expanding Collets and Expanding Mandrels, as well as 5C, 16C, and 3J 'Plug and Play' Collet Chucking Systems for all Lathes, Rotary Tables, Grinding Machines and Special Machines, Thru Hole and No Thru Hole Kits available: |
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 | | Dunham Bar Pull System |
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Dunham Expanding Collet;
5C, 16C, 3J |
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Dunham 50M Spindle Headstock;
5C, 2J |
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Dunham Collet Chuck;
5C, 16C, 3J |
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 | Dunham Air Collet Closer;
5C, 16C, 3J |
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 | Dunham Cartridge Spindle Headstock;
5C, 16C, 3J |
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The Dunham Collet Chucking Systems are one of a wide range of Dunham Workholding and Spindle solutions:
50M Precision Spindles:
Collet Chucks:
Collet and Chuck Actuators/Cylinders: machineable
Expanding Collets:
Bar Pull Systems:
for up to 3" Bar Stock Applications
5C, 16C, and 3J
'Plug and Play'
Collet Chucking Systems for all Lathes, Rotary Tables, Grinding Machines and Special Machines:
Thru Hole and
No Thru Hole Kits available:
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