QCS Workholding LLC
10635 Tower Oaks Blvd.  Ste. E
Houston  TX   77070
Toll Free (888) 869-2424    Local (281) 664-1020   Fax  (281) 664-1026
mailto:workholding@hotmail.com

 

AtlasChucks.com

An Online Pratt Burnerd/Atlas Chuck Distributor

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Pratt Burner/Atlas Series 144 Medium-Duty and Series 145 Heavy-Duty
 4 Jaw Independent Chucks 

 

Medium Duty-144 Series
Heavy Duty-145 Series

  • Two-year warranty

  • Precision manufactured to fit types A, D, L, and threaded spindles or adapter mounting

  • Ductile iron body

  • Sizes 6" - 16"

  • Hardened operating screws

  • Solid reversible hard jaws

  • Special jaw and jaw way design adding extra bearing surfaces, increases chuck life and rigidity

4-Jaw High Quality Independent Chucks
Chuck Size Adapter Mounting Type A Spindle 
Short Taper
Type D Spindle 
Camlock
Type L Spindle 
Long Taper
  Model No. Size Model No. Size Model No. Size Model No.
6 0614400 - - D-3 0614420 L-00 0614431
6 - - - D-4 0614421 L-0 0614433
8 0814400 A-5 0814410 D-3 0814420 L-00 0814431
8 - - - D-4 0814421 L-0 0814432
8 - - - - - L-1 0814433
10 1014400 A-5 1014410 D-4 1014421 L-00 1014431
10 - - - D-5 1014422 - -
10 - A-6 1014411 D-6 1014423 L-0 1014432
10 - A-8 1014412 D-8 1014424 L-1 1014433
12 1214400 A-6 1214411 D-6 1214423 L-0 1214432
12 - A-8 1214412 D-8 1214424 L-1 1214433
14 1414500 A-6 1414511 D-6 1414523 L-1 1414533
14 - A-8 1414512 D-8 1414524 L-2 1414534
16 1614500 A-8 1614512 D-8 1614524 L-1 1614533
16 - A-11 1614513 D-11 1614525 L-2 1614534
Larger diameter chucks available, contact us for price and delivery.
Dimensional Data
Dimensional Data for Adapter Mounting Chucks
Chuck Size   Gripping Capacity Wt.
  A B C D E F G H J K L Min. Max. lbs
6" 6.30" 4.921" 1.77" 2.12" .87" .16" 5.512" .94" M10 M10 7-1⁄8" 5/16" 5" 16
8" 7.87" 4.921" 1.97" 2.83" 1.22" .16" 5.512" 1.26" M10 M10 9-1⁄4" 5/16" 7" 31
10" 9.84" 7.874" 2.36" 2.83" 1.22" .19" 8.819" 1.26" M12 M12 12" 1/2" 8" 43
12" 12.40" 7.874" 2.95" 3.15" 1.42" .19" 8.819" 1.42" M12 M12 14" 1/2" 10" 72
14" 13.80" 10.236" 2.95" 3.58" 1.47" .19" 11.26" 1.42" - M12 16" 3/4" 12" 126
16" 15.75" 10.236" 4.05" 3.58" 1.47" .19" 11.26" 1.42" - M12 18" 3/4" 14" 180

 

Mounting Plates for 144 and 145 Series Independent Chucks
Mounting plates are precision machined to suit the spindle nose of your machine. Plates are stocked semi-finished. If ordering plate separately, specify the model number of your chuck so that PBA can finish machine the adapter to suit your Pratt Burnerd chuck.
Type D Camlock Mountings
Spindle 6" 8" 10" 12" 14" 16"
D-3 0603020 0603020 1003020 1003020 - -
D-4 0603021 0603021 1003021 1003021 - -
D-5 0603022 0603022 1003022 1003022 1203022 -
D-6 - 0603023 1003023 1003023 1203023 1203023
D-8 - - 1003024 1003024 1203024 1203024
D-11 - - - - 1203025 1203025
Type A American Standard Short Taper A1 & A2 Spindles
Spindle 6" 8" 10" 12" 14" 16"
A-5 0603010 0603010 1003010 - - -
A-6 0603011 0603011 1003011 1003011 - -
A-8 - - 1003012 1003012 1203012 1203012
A-11 - - - - 1203013 1203013
Type L American Standard Long Taper Spindles
Spindle 6" 8" 10" 12" 14" 16"
L-00 0603031 0603031 1003031 - - -
L-0 0603032 0603032 1003032 1003032 1203032 -
L-1 - - 1003033 1003033 1203033 1203033
L-2 - - 1003034 1003034 1203034 1203034
Threaded Spindles
Spindle 6" 8" 10"  
1-1⁄2" - 8 0603041 0603041 -
1-3⁄4" - 8 0603042 0603042 -
2-1⁄4" - 8 0603043 0603043 1003043
Hardinge 4 Taper Plate
Spindle 6" 8"  
4 Taper 0604044 0604044
Special adapter plates available upon request. Specify chuck number and spindle nose specifications.
6", 8", 10" and 12" adapters are the same as 3 Jaw adapters.


Call, Fax Or Email For Current Pricing
Toll Free (888) 869-2424   Fax (281) 664-1026
Email  
workholding@hotmail.copm

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