Air collet Closers
Dunham Tool manufactures high quality 5C air collet closers, 2J air collet closers, 16C air collet closers and a 3J air collet closer as well as many other models. The precision 5C collet closer and collet actuator are used with lathes, grinders, and CNC rotary tables, and are rated for up to 6000 RPM maximum. Dunham Tool collet stops and dead length collet stops are also available as optional attachments. Dunham Collet Closers and CNC collet chucks are frequently used on Dunham Tools family of 50m precision spindle, high speed cartridge spindle and spindle headstock products as well as Hardinge and all other lathes, rotary tables and grinders.
Dunham lathe collet closers are designed to increase production and reduce operator fatigue on any lathe by activating either 2J, 3J, 16C, and 5C collets, expanding collets, or step chucks. Closer collet models with thru-hole capacity will accept bar stock up to 1 1/16” diameter (5C), 1 3/8” (2J) & 1 5/8" (16C) and 1 3/4"(3J). Even gripping pressure compensates for stock diameter variations which a mechanical lathe collet closer cannot accommodate.
Features and Benefits
- Standard, High Speed, and High Pressure
- Operation to 6,000 rpm Based on Model
- Reduced Operator Fatigue Means Increased Production
- Activates 2J, 3J, 16C & 5C Collets, Expanding Collets, and Step Chucks
- Accessories Include Standard and Custom Length Draw Tubes, Spindle Mounting Adapters, and a Variety of Valves, Gages, and Regulators
- Thru Hole Capacity 1 1/16" (5C) to 1 3/4" (3J)
- Concentricity Adjustability
||Air collet closer without blank machinable spindle mounting adapter. Does not include draw tube; 3,600 rpm max. Pull force = 1,650 lbs at 100 P.S.I. For 5C Collets.
||Air collet closer (oil mist cooled) without blank machinable spindle mounting adapter. Does not include draw tube; 4,500 rpm constant, 6,000 rpm intermittent. Pull force = 1,990 lbs at 100 P.S.I. For 5C Collets.
||Includes draw tube. Pull force = 1,760 lbs at 100 P.S.I. Air collet closer (high speed 6,000 rpm) without machinable spindle mounting adapter (no through hole). For 5C Collets.
||Pull force = 2,700 lbs at 100 P.S.I. Air collet closer (high pressure) with machinable spindle mounting adapter (with 1" through hole) For 5C Collets.
||Air collet closer (high pressure) without machinable spindle mounting adapter. Does not include draw tube. For 2J Collets.
||Air collet closer without blank machinable spindle mounting adapter (with 1 5/8" thru hole). Does not include drawtube; 5000 RPM Max; Pull force 3040 lbs. For 16C Collets.
||Air Collet Closer 5C 1 1/16" thru hole, 3,600 RPM max, Pull Force 2,700 lbs.