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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5C & 16C Dead-Length and Pull Back Power Chucks 
 

A Type Mount

• Short overall length excellent for main or sub-spindle applications
• Chuck accuracy is 0003” TIR from rear mounting register and working collet taper
• High speed up to 6000 rpm 
• Body nickel plated for corrosion resistance
• Hardened and ground main body and cone
• Dead Length feature eliminates part pullback
• Straight recess or available with A type mountings. Other mounting types available on request
• In second operations work, shoulder components can be stopped against the face of the collet
• Both collet types are internally threaded in the rear end to house either a backstop or ejector if required
• Drawback Spring Collets achieve the highest possible concentric accuracy
• Chuck includes threaded connector to customers specifications
5C & 16C Dead Length
Chuck Type
 5C 5C 16C 16C
Spindle Mount
 A2-5 A2-6 A2-5 A2-6
A (mm/in)
 137/5.393 158/6.220 137/5.393 158/6.220
B (mm/in)
 104.8/4.125 133.4/5.252 104.8/4.125 133.4/5.252
C (mm/in)
 82.56/3.250 106.38/4.188 82.56/3.250 106.38/4.188
D (mm/in)
 Max. M65 Max. M65 Max. M65 Max. M65
E (mm/in)
 137/5.393 137/5.393 137/5.393 137/5.393
F (mm/in)
 78/3.071 78/3.071 90/3.543 90/3.543
I (mm/in)
 68/2.677 68/2.677 68/2.677 68/2.677
L (mm/in)
 122/4.803 122/4.803 145/5.708 145/5.708
Maximum Force
 1800kaf/3968lbf 1800kaf/3968lbf 2300kaf/5070lbf 2300kaf/5070lbf
Maximum RPM
 6000 6000 5000 5000
Chuck Order No.
 CPD-5CA5 CPD-5CA6 CPD-16CA5 CPD-16CA6
5C & 16C Pull Back
Chuck Type
 5C 5C 5C Threaded 5C Threaded 16C 16C
Spindle Mounting
 A2-5 A2-6 A2-5 A2-6 A2-5 A2-6
A (mm/in)
 137/5.393 166/6.535 137.5.393 166/6.535 137.5.393 166/6.535
B (mm/in)
 104.8/4.125 133.4/5.252 104.8/4.125 133.4/5.252 104.8/4.125 133.4/5.252
C (mm/in)
 82.56/3.250 106.38/4.188 82.56/3.250 106.38/4.188 82.56/3.250 106.38/4.188
D (mm/in)
 Max. M58 Max. M65 Max. M65 Max. M58 Max. M58 Max. M65
F (mm/in)
 70/2.756 70/2.756 55/2.187-10T 55/2.187-10T 76/2.992 80/3.149
I (mm/in)
 83/3.267 83/3.267 83/3.267 83/3.267 89/3.504 89/3.504
L (mm/in)
 122/4.803 122/4.803 122/4.803 122/4.803 145/5.708 145/5.708
Maximum Force
 1800kgf/3968lbf 1800kgf/3968lbf 1800kgf/3968lbf 1800kgf/3968lbf 2300kgf/5070lbf 2300kgf/5070lbf
Maximum RPM
 6000 6000 6000 6000 5000 5000
Chuck Order No.
 CPB-5CA5 CPB-5CA6 CPB-5CA5-TH CPB-5CA6-TH CPB-16CA5 CPB-16CA6


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