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

 

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Pratt Burnerd/Atlas 3 Jaw 234 & 235 Series Self-Centering  Scroll Chucks 
 

Super-Precision, 3 Pinion Non-Adjustable
Self-Centering Type: 234 and 235 Series 5" thru 15"

Two-year warranty
Precision manufactured to fit types A, D and L spindles and adapter mounting
.0015" T.I.R. 6-12" sizes, 15" size .003" T.I.R. using nominated pinion
Repeatability .0005" on all sizes
Sizes 5" thru 15"
Three hardened pinions
Two-piece American standard tongue and groove jaws
High tensile ductile iron bodies

Self-Centering High Quality 3 Jaw Universal Chucks
Chuck
Size
Adapter
Mounting
Model No.
Type A Spindle
Short Taper
Type D Spindle
Camlock
Type L Spindle
Long Taper
    Size Model No. Size Model No. Size Model No.
5 0523500 - - D-3 0523520 - -
5 - - - D-4 0523521 - -
6 0623500 A-5 0623510 D-3 0623520 L-00 0623531
6 - - - D-4 0623521 L-0 0623532
8 0823500 A-5 0823510 D-3 0823520 L-00 0823531
8 - A-6 0823511 D-4 0823521 L-0 0823532
8 - - - D-5 0823522 - -
8 - - - D-6 0823523 L-1 0823533
10 1023500 A-5 1023510 D-4 1023521 L-00 1023531
10 - A-6 1023511 D-6 1023523 L-0 1023532
10 - A-8 1023512 D-8 1023524 L-1 1023533
12 1223500 A-6 1223511 D-6 1223523 L-0 1223532
12 - A-8 1223512 D-8 1223524 L-1 1223533
12 - - - D-11 1223525 L-2 1223534
15 1523400 A-8 1523412 D-6 1523423 L-1 1523433
15 - A-11 1523413 D-8 1523424 L-2 1523434
15 - - - D-11 1523425 -  
Larger diameter chucks available, contact QCS Workholding for price and delivery.
Dimensional Information
Dimensional Data for 235 Series Adapter Mounting Self-Centering Chucks
  Gripping Capacity  
Chuck Size A B C D E F G H K Lbs. Wt. Min. Max. Max. RPM
5" 4.92" 3.740" 1.38" 2.31" 1.375" .15" 4.25" 6.75" M8 10.5 3/16" 4" 3600
6" 6.30" 4.921" 1.81" 2.53" 1.59" .15" 5.51" 7.75" M10 18 3/16" 5" 3400
8" 7.87" 6.299" 2.16" 2.87" 1.75" .15" 6.93" 9.75" M10 31.5 3/16" 6-1⁄2" 3100
10" 9.84" 7.875" 2.99" 3.31" 2.13" .19" 8.82" 12.25" M12 59 1/2" 8" 2700
12" 12.20" 10.236" 4.05" 3.56" 2.28" .19" 11.26" 14.25" M12 89 3/4" 10" 2200
15" 15.74" 12.990" 5.35" 3.96" 2.75" .19" 14.25" 16.25" M16 150 1-1⁄2" 13" 1800

 

Mounting Plates For 234 and 235 Series 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 5" 6" 8" 10" 12" 15"
D-3 0503020 0603020 0803020 1003020 - -
D-4 0503021 0603021 0803021 1003021 - -
D-5 - - 0803022 1003022 - -
D-6 - - 0803023 1003023 12303023 1503023
D-8 - - - 1003024 1203024 1503024
D-11 - - - - 1203025 1503025
Type A American Standard Short Taper A-1 & A-2 Spindles
Spindle 5" 6" 8" 10" 12" 15"
A-5 0503010 0603010 0803010 1003010 - -
A-6 - - 0803011 1003011 1203011 1503011
A-8 - - - 1003012 1203012 1503012
A-11 - - - - 1203013 1503013
Type L American Standard Long Taper Key Drive Spindles
Spindle 5" 6" 8" 10" 12" 15"
L-00 0503031 0603031 0803031 1003031 - -
L-0 - 0603032 0803032 1003032 1203032 -
L-1 - - 0803033 1003033 1203033 1503033
L-2 - - - 1003034 1203034 1503034
L-3 - - - - - 1503035
Threaded Spindles
Spindle 5" 6" 8" 10"    
1-1⁄2"-8 0503041 0603041 0803041 -    
1-3⁄4"-8 0503042 0603042 0803042 -    
2-1⁄4"-8 0503043 0603043 0803043 1003043    
Special adapter plates available upon request. Specify chuck number and spindle nose specifications.
For spindle nose specifications


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

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