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Air Collet Closers
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Features and Benefits
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| 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 closer collets are frequently
used on Dunham Tools family of 50m precision spindle, high speed cartridge
spindle and spindle headstock products as well as Hardinge lathes and
other lathes 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. |
- 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
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Specifications and Dimensions for Air Collet
Closers
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Specifications
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Standard
5C or 2J
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Oil Mist
5C
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High Pressure
5C or 2J
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Oil Mist
16C
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Main body diameter (A)
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6"
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6"
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8 1/2"
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7 7/8
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Overall length (B)
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7"
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7"
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6 3/4"
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8 1/2
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Spindle adapter length (C)
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2 1/2"
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2 1/2"
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2 1/2"
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2 1/2
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Spindle adapter O.D. (D)
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2 7/8"
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2 7/8"
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2 7/8
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-
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Draw tube O.D. 5C collets
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1 3/8"
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1 3/8"
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1 3/8"
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-
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Draw tube O.D. 2J collets
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1 3/4"
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N/A
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1 3/4"
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-
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Draw tube O.D. 16C collets
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-
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-
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-
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2 1/8"
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Draw bar pull @100p.s.i.
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1,600
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1,990
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2,700
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3040
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Draw bar push @100p.s.i.
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600
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1,620
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3,100
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1200
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Stroke-standard (optional)
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5/16" (1")
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5/16" (1")
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3/4in
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5/16
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Maximum spindle speed (rpm)
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3,600
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6,000
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2,400
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5,000
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Weight
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14lb., 11oz.
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14lb., 11oz.
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17lb., 9oz.
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37 lb.
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Model Number and Description Air Collet Closers
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Back to Top |
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Part Number
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Part Description
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DACC
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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.
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DACCOM
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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.
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DACCHI
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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.
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DACC27
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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.
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DACC272J
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Air collet closer (high pressure) without machinable spindle
mounting adapter. Does not include draw tube. For 2J Collets.
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DACC16C
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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.
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00602100A
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Draw Tub Seal - Mounts to ID of Air Closer.
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DACCDP
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Air Collet Closer 5C 1 1/16" thru hole, 3,600 RPM max, Pull Force
2,700 lbs.
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Air Collet Closer Accessories
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DACCMAM
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Machinable mounting adapter to customer dimensions, straight bore
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DACCMAT
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Machinable mounting adapter to customer dimensions, threaded bore
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SEAL-OPTION
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Special seal around piston to reduce contamination
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HARD OPTION
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Special hard coating on piston, cylinder and main bearing mount to
resist wear
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MB244G
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Blank machinable spindle mounting adapter with 1" through hole
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DT-18
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18 inch drawtube 5C
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DT-24
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24 inch drawtube 5C
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DT-30
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30 inch drawtube 5C
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DT-36
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36 inch drawtube 5C
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DT-42
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42 inch drawtube 5C
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DT-24-16C
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24 inch drawtube 16C
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DT-30-16C
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30 inch drawtube 16C
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DT-36-16C
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36 inch drawtube 16C
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DT-42-16C
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42 inch drawtube 16C
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DS100
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Dead length collet stop
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DACC-4HV-KIT
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4-way hand valve, air regulator, gage and two (2) 36” long air
hoses and fittings
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DACC-4FV-KIT
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4-way foot valve, air regulator, gage and two (2) 72” long air
hoses and fittings
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