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
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Quick-Change Jaw Grip Fast Power Chucks, Standard and King Bore 
 

Constant Grip High Speed Thru-Hole Power Chucks, Sizes 6" Thru 24"



 

Shown with optional jaw setting fixture and hard reversible top jaws.
Jaw Presetting Fixture Order Number 1009-07090 for use with 6", 8", 10", 12", 15", 18" and 20" sizes Standard Bore and King Bore Models Quick Change Jaw Power Chucks.
One Year Warranty
 

Quick-Change Jaw Grip Fast Power Chucks, Standard and King Bore 
 

Constant Grip High Speed Thru-Hole Power Chucks, Sizes 6" Thru 24"

Shown with optional jaw setting fixture and hard reversible top jaws.
Jaw Presetting Fixture Order Number 1009-07090 for use with 6", 8", 10", 12", 15", 18" and 20" sizes Standard Bore and King Bore Models Quick Change Jaw Power Chucks.
One Year Warranty

 Shown with optional jaw setting fixture and hard reversible top jaws.
Jaw Presetting Fixture Order Number 1009-07090 for use with 6", 8", 10", 12", 15", 18" and 20" sizes Standard Bore and King Bore Models Quick Change Jaw Power Chucks.
One Year Warranty
  • ±.0005" Repeatability
  • 3-Point Adjusting Feature in the chuck body permits indicating in to zero.
  • Increase Soft Jaw Life by using adjustment feature. Reduce or eliminate re-boring of Soft Jaws.
  • High RPM ... up to 6,000 using standard top jaws ... without loss of gripping force, due to internally counter-balanced design.
  • Quick Change Master Jaws, 2 sets supplied with each chuck permits offline pre-assembly of top tooling for next job reducing traditional setup time by 95%.
  • SAFE Visual Indicator shows when Master Jaws are in the unlocked mode.
  • Utilize existing top tooling by selecting style of master jaws from 1.5 x 60, 1/16 x 90, Am. Std. Acme, Am. Std Tongue & Groove and Square Serrations or substitute mono block jaws. Sets can be mixed styles.
  • Doubles as collet chuck as master jaws have keyed radius in front that accept standard W & S collet pads. Eliminate time wasted on switching over to collet chuck.
  • Large Thru-Hole Capacity.
  • Utilize the machine's existing actuating cylinder - does not require long stroke cylinder.
  • Easy Installation - removable blank sleeve in the chuck allows the customer to bore and thread the sleeve of the chuck to match existing drawtube or drawbar. PBA can supply chuck sleeve prethreaded on request, at a nominal charge.
  • Optional Jaw Setting Fixture (as shown) for presetting top jaws off the machine for the next job, while the machine is still running. A real timesaver!
  • Sizes 6", 8", 10", 12", 15", 18", 20" and 24" diameters.
Chuck
Size		 Mount
(D)Direct (I)Indirect		 RPM Model No.* Jaw
Stroke		 Sleeve
Stroke		 Thru
Hole		 Collet Pad
Bar Capacity		 Tooling
Hole Size		 Operating
Force lbs/f		 Grip
Force lbs/f		 Wt 
(lbs)
6.5" A2-4(I) 6000 9131-217__ .140" .630" 1.65" 1.5" 5/16" UNC 3,600 9,900 31
6.5" A2-5(D) 6000 9131-317__ .140" .630" 1.65" 1.5" 5/16" UNC 3,600 9,900 31
6.5" A2-6(I) 6000 9131-417__ .140" .630" 1.65" 1.5" 5/16" UNC 3,600 9,900 31
8.25" A2-5(I) 5500 9131-321__ .140" .630" 2.05" 2.0" 5/16" UNC 5,400 15,000 53
8.25" A2-6(D) 5500 9131-421__ .140" .630" 2.05" 2.0" 5/16" UNC 5,400 15,000 53
8.25" A2-8(I) 5500 9131-521__ .140" .630" 2.05" 2.0" 5/16" UNC 5,400 15,000 53
10.0" A2-6(I) 5000 9131-426__ .160" .730" 2.56" 2.5" 3/8" UNC 7,200 19,800 82
10.0" A2-8(D) 5000 9131-526__ .160" .730" 2.56" 2.5" 3/8" UNC 7,200 19,800 82
12.0" A2-8(I) 4200 9131-531__ .160" .730" 3.54" 3.0" 3/8" UNC 9,900 27,000 150
12.0" A2-11(D) 4200 9131-631__ .160" .730" 3.54" 3.0" 3/8" UNC 9,900 27,000 150
15.0" A2-8(I) 3000 9131-538__ .200" .790" 4.92" 4.5" 3/8" UNC 13,500 31,500 280
15.0" A2-11(D) 3000 9131-638__ .200" .790" 4.92" 4.5" 3/8" UNC 13,500 31,500 280
18.0" A2-8(I) 2500 9131-546__ .236" .984" 5.59" 5.5" 1/2" UNC 15,500 38,250 375
18.0" A2-11(I) 2500 9131-646__ .236" .984" 5.59" 5.5" 1/2" UNC 15,500 38,250 375
20.0" A2-11(I) 2500 9131-650__ .236" .984" 5.59" 5.5" 1/2" UNC 15,500 38,250 550
24.0" A2-11(I) 2000 9131-661__ .315" .984" 6.299" 6.0" 1/2" UNC 20,700 38,250 760
24.0" A2-15(D) 2000 9131-761__ .315" .984" 6.299" 6.0" 1/2" UNC 20,700 38,250 760
King Bore Quick-Change Chucks
7.0" A2-5(D) 7000 9171-317__ .140" .630" 2.20" 2.0" 5/16" UNC 4,500 13,000 37
8.25" A2-6(D) 5500 9171-421__ .140" .630" 2.59" 2.5" 5/16" UNC 5,400 15,000 53
10.43" A2-6(I) 5000 9171-426__ .160" .730" 3.03" 3.0" 3/8" UNC 7,200 19,800 82
10.43" A2-8(D) 5000 9171-526__ .160" .730" 3.03" 3.0" 3/8" UNC 7,200 19,800 82
12.40" A2-8(I) 4200 9171-531__ .160" .730" 4.05" 4.0" 3/8" UNC 9,900 27,000 183
12.40" A2-8(D) 4200 9171-631__ .160" .730" 4.05" 4.0" 3/8" UNC 9,900 27,000 183
*Insert last two digits for Master Jaw type...Example 9131-21723...Indicates 1.5mm x 60°: Master Jaw Required
Use 23 for 1.5mm x 60° Japanese type.** Use 07 for Am. Std Tongue & Groove. Use 10 for 1/16 X 90° Serrations.*
Use 26 for Acme Serration. Use 27 for Square Serration.


 

Dimensional Data
Dimensional and Performance Data (in inch)
  E
Chuck Size A B C D F Max Min
6-A4 6.496 4.685 4.803 3.25 0.787 2.126 1.339
6-A5 6.496 4.842 4.96 4.125 0.787 2.126 1.339
6-A6 6.496 5.078 5.196 5.25 0.787 2.126 1.339
8-A5 8.26 5.119 5.275 4.125 1 2.637 1.733
8-A6 8.26 5.354 5.51 5.25 1 2.637 1.733
8-A8 8.26 5.705 5.862 6.75 1 2.637 1.733
10-A6 10 5.511 5.669 5.25 1.181 3.268 2.087
10-A8 10 5.905 6.063 6.75 1.181 3.268 2.087
12-A8 12 6.614 6.771 6.75 1.181 4.291 2.362
12-A11 12 6.614 6.771 9.25 1.181 4.291 2.362
15-A8 15 6.929 7.086 6.75 1.693 5 3.228
15-A11 15 6.929 7.086 9.25 1.693 5 3.228
18-A8 18 7.72 7.78 6.75 1.693 6.772 4.527
18-A11 18 7.72 7.78 9.25 1.693 6.772 4.527
20-A11 19.68 7.362 7.499 9.25 2.362 8.09 5.059
24-A11 24.02 7.56 7.72 9.25 2.362 10.09 5.77
24-A15 24.02 7.56 7.72 13 2.362 10.09 5.77
***9.45"/13"/16.53"/20.08"
(T) Draw Tube Thread Blank
1. Dimensions listed are with 1.5 x 60° Japanese type master jaws. Some dimensions will vary using other Master Jaw types such as Acme, 1/16" x 90° or Am. Std. Tongue & Groove.
2. Chuck is at mid stroke with master jaws flush with the body O.D.

 

Mono block jaws are extremely accurate solid one piece design ideal for dedicated jobs, and will allow you to work closer to the chuck face, due to no jaw bolt obstructions. For longer service Mono Block Jaws are made from a nitride hardening material to allow hardening after forming without major distortion.
See our product catalog for dimensions.
Extra Sets of Master Jaws for Quick Change Jaw Power Chucks
  6" 8" 10" 12" 15" 18" 20" 24"
Master Jaw Type - 1.5mm x 60°
Fine Serration (Japanese Type)		 8130-17623 8130-21623 8130-26623 8130-31623 8130-40623 8130-46623 8130-50623** 8130-61623**
1/16 x 90°
Fine serration (European Type)		 8130-17610 8130-21610 8130-26610 8130-31610 8130-38610* 8130-46610* 8130-50610* 8130-61610*
Acme Serration N/A 8130-21626 8130-26626 8130-31626 8130-40626 8130-46626 8130-50626 8130-61626
American Std. Tongue & Groove 8130-17607 8130-21607 8130-26607 8130-31607 8130-38607 8130-46607 8130-50607 8130-61607
Square Serration N/A 8130-21627 8130-26627 8130-31627 8130-38627 8130-46627 8130-50627 8130-61627
Mono Block Jaw*** 8130-17601P 8130-21601 8130-26601 8130-31601 8130-38601 8130-46601 8130-50601 8130-61601
**20" & 24" diameter chucks supplied with 3mm x 60° serrations * 15", 18" 20" and 24" diameter chucks supplied with 3/32" x 90° serrations

 


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