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October 2010                        www.dunhamtool.com                    Issue: 104 50M

Since 1958, Dunham Tool has designed and manufactured innovative, high quality and high accuracy workholding, toolholding and spindle solutions for manufacturing industries worldwide.

Dunham Tool Spindle Headstock Assemblies:
5C, 16C, 3J Thru Hole Spindle Systems:

Lathes, Grinders, Special Machines

Dunham Tool 50M Spindle Headstock Assemblies are used to build or retrofit Lathes, Cylindrical Grinders, Polishing Machines and many Special Machines. Please see below for a Dunham CAD Layout Drawing for a complete Dunham 50M Spindle Headstock, Pulley and Air Collet Closer Assemblies.  
            
Dunham 50MP and DACC.jpg
Dunham 50M 5C Spindle with Dunham 5C Air Collet Closer and Pulley
These Dunham 50M Spindle Headstocks are manufactured with high accuracy angular contact bearings yielding accuracies of 0.000020" to 0.000050" TIR. Typically equipped with Dunham Air Collet Closers and Pulleys, these Dunham Spindles are used for both thru hole and discreet chucking applications. Dunham 50M Spindle Assemblies directly accept all 5C Collets (or optional 1C and 3C Collets) in a 4 Degree Taper Nose configuration, and are rated for up to 6000 RPM operation with 1/4 to 3 horsepower motors. They also run exceptionally well at slow speeds. Dunham 50M Spindle Assemblies are equipped with a variety of Dunham Pulley Assemblies and a variey of Dunham Thru Hole Air Collet Closers for up to 3600 or 6000 RPM applications.
Typically used as 'work holding' spindles (80% of applications), Dunham 50M Spindles are also frequently used as 'tool holding' spindles (20% of applications). All Dunham Spindle Assemblies produce exceptional, highly accurate results with high repeatability and durability. All Dunham Spindle Assemblies are designed for light and heavy machining applications of steel, ceramic, powdered metal, pressed carbon, phenolic and other traditional and composite materials. Dunham Spindles can also be equipped with optional Air Purge features to further enhance their durability and longevity when turning, grinding or polishing highly abrasive materials. 
Dunham 50MT Spindle.jpg
Dunham 50MT 5C Spindle, 4 Degree Taper Nose
As a result of the adjustability of Dunham Air Collet Closers, the workholding pressure applied to a workpiece is highly adjustable for a wide variety of thin wall, fragile, high surface finish or other special or standard workpieces.
 
Again, ideal for use (or retrofit) on Lathes, Grinders, Polishing and innumerable Special Machines, Dunham Spindles provide a highly accurate, repeatable, durable and reliable 'work holding' or 'tool holding' Spindle solution for today's demanding manufacturing processes in medical, aerospace, automotive, electronics and other industries.

 
Dunham 50M Spindle, Headstock and Air Collet Closer.gif
Dunham 50M 5C Spindle Headstock, Pulley and Air Collet Closer Assembly

 

The Dunham 50M Spindle Systems are one of a wide range of Dunham workholding and spindle devices: 5C, 16C and 3J Cartridge Spindles, Collet Chucks, Collet and Chuck Actuators and Cylinders, machineable Expanding Mandrels, Expanding Collets, 

Bar Puller Systems, 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:
Dunham 16C Collet Chuck for A2-8 Spindle
Dunham Collet Chucks: Drawtube Style: 5C, 16C, 3J
 


The Dunham 50M Spindle Systems are one of a wide range of Dunham workholding and spindle devices:
 
5C, 16C and 3J

Cartridge Spindles:
 Collet Chucks:
 Collet and Chuck Actuators/Cylinders: machineable
Expanding Mandrels:
Expanding Collets:

BAR PULLER SYSTEMS 

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:

Dunham 5C,16C,3J Expanding Collets
Dunham 5C, 16C, 3J Expanding Collets


Dunham Bar Pull Shank, Adapter and Gripper
Dunham Bar Pull System: 3/16" to 2 1/2" Diameters: 3MM to 34MM Diameters:
 


Please call or email us for any additional technical information or applications assistance that you may need. You will receive immediate and complete assistance.
All Dunham products are designed and manufactured in the USA.


 
We appreciate your Comments or Feedback
 

 

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Dunham Tool Company
 8 Parklawn Drive
Bethel, CT   06801   USA
203-739-0415 (Phone)   203-739-0461 (Fax) 
www.dunhamtool.com    dunham@dunhamtool.com