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Pratt Burnerd/Atlas Rotary Air Powered Front Mount B60 Dead Length Collet Chucks

No Draw-Tube or Air Feed Tubes Required: for Lathes, Rotary Tables and Grinders: Series ATL208-B60

  • No Hydraulic System Required

  • No Draw Tube or Air Feed Tubes Restricting Spindle Bore

  • No Rear Cylinders and Cylinder Adapters

  • Low Cost

  • Easily Convert any Lathe or Grinder into a Production Machine

  • Ideal for Rotary Table Applications

  • Change from Collet Chuck to Standard Chuck Quick and Easy

  • High Speed 2000 RPM

  • High Accuracy Less Than .001” TIR

  • Repeats on Duplicate Parts Plus Minus .0015”

  • Dead Length Design

  • For Best Accuracy Use High Quality CRAWFORD COLLETS

  • Lever or Foot Pedal Actuated

  • Low Maintenance with Oil Mist Lubrication System

  • High Resistance to Coolant and Chip Penetration

  • Uses B60 Collets, Range 1/16″ (1mm) to 2-3/8″ (60.5mm)

  • Available in A, D, L, 4 Degree, Threaded and Straight Recess Mounting

PRATATLAS ATLB42 ROTAIR COLLETCHK TECHSPEC DIMDWR.png
Collet Chuck
Dim.
ATL208-B60
Specifications
ATL208-B60
Collet Chuck Order No. with Mount:
A
214mm (8.43")
Screw Hole/MTG bolts
11mm (0.43") x 3 - M10 xP1.5 x "
ATL208-B60
B
170mm (6.69")
Collet Type
B60 Collets
C
60mm (2.36")
Max. RPM
2000
Straight Recess Mount
D
4.5mm (0.18")
Sleeve Stroke
4mm (0.16")
Type A Mount
ATL208-B60A5
ATL208-B60A6
E
148mm (5.83")
Air Pressure
3-8 kg/cm2 (42-114 psi)
ATL208-B60A8
F
85mm (3.35")
Through Hole Dia
65mm (2.375")
Type D Mount
G
164mm (6.96")
Chuck Weight
21kg (46 lbs.)
ATL208-B60D4
ATL208-B60D5
ATL208-B60D6
H
186mm (7.32")
Grip Force
13,358 lbs @ 100 PSI
ATL208-B60D8

​Collet Chuck Supplied with:
• 2 Filter Bars
• 2 Air Hoses
• 1 Fixing Bracket for Hoses
• 1 Hex Key
• Mounting Bolts
NOTE: “E” shown is for model ATL208-B60 Collet Chuck with no mounting plate.
Add 3/4" to the “E” dimension for mounting plate. This will vary slightly depending on the mounting required. If an exact “E” dimension is required, consult factory.
OPTIONS: Order No: LEV100 Lever Control Package: (Includes: Lever Control, Line Filter, Lubricator and regulator.)
Order No: FOT200 Foot Pedal Control Package: (Includes: Foot Pedal, Line Filter, Lubricator and regulator.)

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