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QCS WORKHOLDING LLC
18611 WEST WINDHAVEN TERRACE TRAIL
CYPRESS TEXAS 77433
888-869-2424
AUTHORIZED PRATT BURNERD/ATLAS DISTRIBUTOR

Atlas Workholding Direct replacement chucks for Kitagawa B200 Series
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Easy retrofit
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Interchangeable Top Tooling 1.5mm x 60° Serrations up to 18″ sizes, 3mm x 60° Serrations 20″ & 24″ sizes
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High speed
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Full 2 year warranty parts and labor
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Hardened jaw ways, master jaws and internal parts
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Large thru-holes, plus Quick Change cover plate for closed center applications
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Chuck accuracy plus/minus .0005” repeatability
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Great price and value
Model | Hole Size (in) | Plunger Stroke (in) | Jaw Stroke (Dia. in) | Max. Pull Force (lbf) | Max. Grip (lb/f) | Max. Speed (rpm) | Weight (lbs) | Moment of Inertia I (kg - m2) | O. D. Grip Range (in) |
|---|---|---|---|---|---|---|---|---|---|
ATL5-A5 | 1.3 | 0.394 | 0.2125 | 3925 | 8080 | 7000 | 20 | 0.023 | .24-4.0 |
ATL6-A5 | 1.77 | 0.472 | 0.2165 | 4935 | 12790 | 6000 | 33 | 0.062 | .59-5.0 |
ATL6-A6 | 1.77 | 0.472 | 0.2165 | 4935 | 12790 | 6000 | 38 | 0.073 | .59-5.0 |
ATL8-A5 | 2.07 | 0.63 | 0.2913 | 7830 | 19970 | 5000 | 57 | 0.19 | .79-6.16 |
ATL8-A6 | 2.07 | 0.63 | 0.2913 | 7830 | 19970 | 5000 | 55 | 0.184 | .79-6.16 |
ATL8-A8 | 2.07 | 0.63 | 0.2913 | 7830 | 19970 | 5000 | 65 | 0.217 | .79-6.16 |
ATL10-A6 | 2.95 | 0.748 | 0.3464 | 9659 | 24902 | 4200 | 90 | 0.37 | .98-8.0 |
ATL10-A8 | 2.95 | 0.748 | 0.3464 | 9650 | 24902 | 4200 | 84 | 0.34 | .98-8.0 |
ATL12-A6 | 3.58 | 0.905 | 0.4173 | 12790 | 32978 | 3300 | 138 | 0.809 | 1.18-10. |

ATL SERIES 3-JAW POWER CHUCK TECHNICAL SPECIFICATIONS
Model Number | A | B | C H6 | D | E | F | G | H | J | K | L | M | N Max. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ATL5-A5 | 5.31 | 3.46 | 4.33 | 0.551 | 1.26 | 3.25 | 3.25 | 4.125 | 0.551 | 3-M10 | 1.3 | 0.157 | 1.043 |
ATL6-A5 | 6.65 | 3.58 | 5.51 | 0.787 | 0.59 | 3.25 | 4.566 | 4.125 | 0.629 | 3-M10 | 1.77 | 0.197 | 1.26 |
ATL6-A6 | 6.65 | 4.37 | 5.51 | 0.787 | 1.378 | 4.187 | 4.125 | 5.25 | 0.629 | 3-M10 | 1.77 | 0.197 | 1.26 |
ATL8-A5 | 8.27 | 4.29 | 6.69 | 0.984 | 0.905 | 3.25 | 5.25 | 4.125 | 0.512 | 3-M12 | 2.05 | 0.197 | 1.523 |
ATL8-A6 | 8.27 | 4.05 | 6.69 | 0.984 | 0.669 | 4.187 | 5.905 | 5.25 | 0.708 | 3-M12 | 2.05 | 0.197 | 1.523 |
ATL8-A8 | 8.27 | 4.96 | 6.69 | 0.984 | 1.575 | 5.5 | 5.205 | 6.75 | 0.945 | 3-M12 | 2.05 | 0.197 | 1.523 |
ATL10-A6 | 10 | 4.721 | 8.66 | 1.181 | 0.987 | 4.187 | 6.75 | 5.25 | 0.708 | 3-M16 | 2.95 | 0.197 | 2.007 |
ATL10-A8 | 10 | 4.45 | 8.66 | 1.181 | 0.708 | 5.507 | 7.48 | 6.75 | 0.945 | 3-M16 | 2.95 | 0.197 | 2.007 |
ATL12-A6 | 11.96 | 5.08 | 8.66 | 1.181 | 0.987 | 4.187 | 6.75 | 5.25 | 0.708 | 3-M16 | 3.58 | 0.236 | 2.413 |
ATL12-A8 | 11.96 | 4.8 | 8.66 | 1.181 | 0.708 | 5.5 | 7.48 | 6.75 | 0.984 | 3-M16 | 3.58 | 0.236 | 2.413 |
ATL12-A11 | 11.96 | 6.06 | 8.66 | 1.181 | 1.968 | 7.75 | 6.75 | 9.252 | 1.102 | 3-M16 | 3.584 | 0.236 | 2.413 |
ATL15-A8 | 15 | 6.3 | 11.81 | 1.692 | 1.299 | 5.5 | 9.252 | 6.78 | 0.945 | 3-M20 | 4.62 | 0.236 | 3.228 |
ATL15-A11 | 15 | 5.86 | 11.81 | 1.692 | 0.866 | 7.75 | 10.236 | 9.252 | 1.102 | 3-M20 | 4.62 | 0.236 | 3.228 |
ATL18-A8 | 17.72 | 6.3 | 11.81 | 1.692 | 1.299 | 5.5 | 9.252 | 6.75 | 0.945 | 3-M20 | 4.62 | 0.236 | 3.228 |
ATL18-A11 | 17.72 | 5.86 | 11.81 | 1.692 | 0.866 | 7.75 | 10.236 | 9.252 | 1.102 | 3-M20 | 4.62 | 0.236 | 3.228 |
ATL18-A15 | 17.72 | 7.24 | 11.81 | 1.692 | 2.244 | 11.25 | 9.252 | 13 | 0.945 | 3-M20 | 4.62 | 0.236 | 3.228 |
ATL20-0A11 | 20 | 6.65 | 14.96 | 2.362 | 1.614 | 7.75 | 13 | 9.252 | 1.181 | 3-M24 | 7.08 | 0.236 | 4.429 |
ATL20-A15 | 20 | 6.1 | 14.96 | 2.362 | 1.062 | 11.25 | 13 | 13 | 1.299 | 3-M24 | 7.08 | 0.236 | 4.429 |
ATL24-A11 | 24.01 | 7.32 | 20.47 | 2.362 | 1.771 | 7.75 | 18.251 | 9.252 | 1.102 | 3-M24 | 8.07 | 0.236 | 5.507 |
ATL24-A15 | 24.01 | 7.2 | 20.47 | 2.362 | 1.653 | 11.25 | 18.251 | 13 | 1.299 | 3-M24 | 8.07 | 0.236 | 5.507 |
ATL24-A20 | 24.01 | 6.53 | 20.47 | 2.362 | 0.984 | 16.25 | 18.251 | 18.252 | 1.299 | 3-M24 | 8.07 | 0.236 | 5.507 |
ADDITIONAL TECHNICAL SPECIFICATIONS
Model Number | O Max. | O Min. | P Max. | P Min. | Q | R | S | T | U Max. | V | W | X | Y | Ref. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ATL5-A5 | 0.777 | 0.305 | 1.3 | 0.905 | 0.079 | 0.393 | 0.787 | 0.984 | M40x1.5 | 6-M10 | 1.771 | 1.22 | 2.126 | Fig-3 |
ATL6-A5 | 0.895 | 0.364 | 1.023 | 0.551 | 0.079 | 0.472 | 0.748 | 1.22 | M55x2 | 3-M6 | 2.362 | 1.456 | 2.874 | Fig-1 |
ATL6-A6 | 0.895 | 0.364 | 1.811 | 1.338 | 0.079 | 0.472 | 0.748 | 1.22 | M55x2 | 6-M12 | 2.362 | 1.456 | 2.874 | Fig-3 |
ATL8-A5 | 1.171 | 0.462 | 1.476 | 0.846 | 0.079 | 0.551 | 0.807 | 1.378 | M60x2 | 6-M10 | 2.598 | 1.496 | 3.74 | Fig-2 |
ATL8-A6 | 1.171 | 0.462 | 1.24 | 0.61 | 0.079 | 0.551 | 0.807 | 1.378 | M60x2 | 3-M6 | 2.598 | 1.496 | 3.74 | Fig-1 |
ATL8-A8 | 1.171 | 0.462 | 2.145 | 1.515 | 0.079 | 0.551 | 0.807 | 1.378 | M60x2 | 6-M16 | 2.598 | 1.496 | 3.74 | Fig-3 |
ATL10-A6 | 1.328 | 0.561 | 1.318 | 0.571 | 0.079 | 0.63 | 0.984 | 1.575 | M85x2 | 6-M12 | 3.7 | 1.693 | 4.338 | Fig-2 |
ATL10-A8 | 1.328 | 0.561 | 1.043 | 0.295 | 0.079 | 0.63 | 0.984 | 1.575 | M85x2 | 3-M8 | 3.7 | 1.693 | 4.338 | Fig-1 |
ATL12-A6 | 1.801 | 0.62 | 1.3 | 0.394 | 0.079 | 0.826 | 1.102 | 1.968 | M100x2 | 6-M12 | 4.252 | 2.009 | 5.118 | Fig-2 |
ATL12-A8 | 1.801 | 0.62 | 1.023 | 0.118 | 0.079 | 0.826 | 1.102 | 1.968 | M100x2 | 3-M8 | 4.252 | 2.009 | 5.118 | Fig-1 |
ATL12-A11 | 1.801 | 0.62 | 2.283 | 1.378 | 0.079 | 0.826 | 1.102 | 1.968 | M100x2 | 6-M20 | 4.252 | 2.009 | 5.118 | Fig-3 |
ATL15-A8 | 1.801 | 0.62 | 1.575 | 0.669 | 0.197 | ..866 | 1.693 | 2.441 | M130x2 | 6-M16 | 5.472 | 2.598 | 6.496 | Fig-2 |
ATL15-A11 | 1.801 | 0.62 | 1.141 | 0.236 | 0.197 | 0.866 | 1.693 | 2.441 | M130x2 | 6-M20 | 5.472 | 2.598 | 6.496 | Fig-1 |
ATL18-A8 | 3.139 | 0.62 | 1.578 | 0.236 | 0.197 | 0.866 | 1.693 | 2.441 | M130x2 | 6-M16 | 5.472 | 2.598 | 6.496 | Fig-2 |
ATL18-A11 | 3.139 | 0.62 | 1.141 | 0.236 | 0.197 | 0.866 | 1.693 | 2.441 | M130x2 | 3-M10 | 5.472 | 2.598 | 6.496 | Fig-1 |
ATL18-A15 | 3.139 | 0.62 | 2.578 | 1.614 | 0.197 | 0.866 | 1.693 | 2.441 | M130x2 | 6-M24 | 5.472 | 2.598 | 6.496 | Fig-3 |
ATL20-0A11 | 2.381 | 0.964 | 2.047 | 1.141 | 0.197 | 0.984 | 1.496 | 2.559 | M190x2 | 6-M20 | 8.11 | 2.874 | 7.086 | Fig-2 |
ATL20-A15 | 2.381 | 0.964 | 1.496 | 0.59 | 0.197 | 0.984 | 1.496 | 2.559 | M190x2 | 6-M12 | 8.11 | 2.874 | 7.086 | Fig-1 |
ATL24-A11 | 3.445 | 0.964 | 2.401 | 1.378 | 0.197 | 0.984 | 1.496 | 2.559 | M215x2 | 6-M20 | 9.055 | 2.874 | 7.086 | Fig-2 |
ATL24-A15 | 3.445 | 0.964 | 2.283 | 1.259 | 0.197 | 0.984 | 1.496 | 2.559 | M215x2 | 6-M24 | 9.055 | 2.874 | 7.086 | Fig-2 |
ATL24-A20 | 3.445 | 0.964 | 1.614 | 0.59 | 0.197 | 0.984 | 1.496 | 2.559 | M215x2 | 3-M10 | 9.055 | 2.874 | 7.086 | Fig-1 |
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