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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Draw Down Power Chucks 
 

PDD 4" - 15" Chucks

  • 3 jaw draw down chuck for machining work requiring squareness and parallelism
  • High accuracy
  • Maintains high grip forces
  • Adapter mount for A type spindles, other mounts available
  Gripping Capacity  
Model No. Jaw Stroke Dia. Sleeve Stroke Max. Min. Draw Bar Pull lb/f GripForce lb/f Max RPM Wt. lbs
PDD4 .197" .276" 1.97" .591" 1,300 3,300 3500 10
PDD5 .197" .276" 2.56" .591" 2,200 4,400 3500 16
PDD6-A4 .285" .394" 3.35" 1.378" 3,300 5,500 3500 30
PDD6-A5 .285" .394" 3.35" 1.378" 3,300 5,500 3500 30
PDD6-A6 .285" .394" 3.35" 1.378" 3,300 5,500 3500 30
PDD8-A5 .283" .394" 7.87" 1.575" 5,500 9,900 3000 60
PDD8-A6 .283" .394" 7.87" 1.575" 5,500 9,900 3000 60
PDD10-A6 .425" .591" 9.84" 1.969" 7,700 13,200 2500 101
PDD10-A8 .425" .591" 9.84 1.969" 7,700 13,200 2500 101
PDD12-A8 .425" .591" 11.81" 1.969" 9,900 16,550 2000 150
PDD12-A11 .425" .591" 11.81" 1.969" 9,900 16,550 2000 150
PDD15-A8 .573" .787" 14.96" 2.362" 12,100 19,850 1500 243
PDD15-A11 .573" .787" 14.96" 2.362" 12,100 19,850 1500 243

Dimensional Cata
Dimensional Data (in inch)
MODEL PD-4 PD-5 PD-6 PD-8 PD-10 PD-12 PD-15
A 4.33 5.12 6.5 8.25 10 12 15
B 2.36 2.76 3.35 3.74 4.33 4.92 5.52
C 2.362 3.15 5.512 7.48 9.055 9.055 11.81
F 0.197 0.197 0.197 0.197 0.197 0.197 0.315
H 3.15 3.937 4.125 5.25 6.75 6.75 9.055
J 0.984 1.103 1.26 1.496 1.969 2.047 2.362
K 3-M8 3-M8 6-M10 6-M12 6-M16 6-M16 6-M20
L 0.511 0.511 0.63 0.906 0.866 1.063 1.181
M - - 0.787 0.984 1.181 1.378 1.772
N max. 1.657 1.732 2.283 2.795 3.346 4.016 5.261
N min 1.358 1.634 2.142 2.654 3.134 3.803 4.975
O 0.984 1.181 1.378 1.272 2.165 2.756 3.74
P max. 0.748 0.748 1.299 1.496 1.85 1.85 2.795
P min 0.472 0.472 0.906 1.102 1.206 1.206 2.008
Q 0.984 1.181 1.378 1.575 1.967 2.362 2.756
R - - - 1.024 1.26 1.417 1.575
S 0.787 0.984 1.417 1.417 1.811 1.989 1.989
T M10x1.5 M12x1.75 M16x2.0 M20x2.5 M20x3.0 M20x3.0 M30x3.5
U max. 0.413 0.413 0.551 0.551 0.748 0.748 1.024
min 0.138 0.138 0.155 0.155 0.155 0.155 0.236
V 1.102 1.181 1.378 1.654 2.047 2.165 3.543


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Email   workholding@hotmail.copm
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