800.253.0820
3977 Emerald Dr., Kalamazoo, MI 49001
King Bore 3 Jaw Power Chucks
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ATLB Series 6" thru 18"

  • Super large thru-hole
  • Easy Retrofit
  • Interchangeable Top Tooling 1.5mm x 60° serrations
  • High speed
  • Full 2 year warranty parts and labor
  • Hardened jaw ways, master jaws and internal parts
  • Quick Change cover plate for closed center applications.
  • Chuck accuracy plus/minus .0005” repeatability

See complete product details in our latest catalog >>

Table Test

MODELATLB6-A5ATLB8-A6ATLB10-A8ATLB12-A11ATLB15-A15ATLB18-A15
Through-Hole (in) 2.047 2.5983.071 4.8035.59 6.555
Plunge Stroke (in) 0.472 0.630.748 0.9050.905 0.905
Jaw Stroke (in) 0.212 0.2910.346 0.4130.413 0.413
Pull Force (lbf) 7974 78289647 1278815928 15928
Grip Force (lbf) 12788 1996524902 3297840381 40381
Oper. Pressure (psi) 262 292392 292363 363
Max. Speed (rpm) 6000 50004200 32002500 2000
Weight (lbs) 31 5383 144287 355
Mount of Inertia (kg-m2) 0.16 0.140.4 0.953 4.77
Grip O.D. Range (in) .63-5.0 .78-6.25.98-8.25 1.61-10.752.36-14.0 2.95-16.0

Table Test

Dimensional Data (in inch)
Model A B C
H6
D E F G H J K
ALTB6-A5 6.69 3.58 5.51 0.787 0.59 3.25 4.566 4.125 0.57 6xM10
ALTB8-A68.264.056.690.9840.6694.1885.9055.250.7676xM12
ALTB10-A8 10 4.45 8.66 1.181 0.708 5.5 7.48 6.75 0.944 6xM16
ALTB12-A1112.45.2711.811.1810.8667.71610.2369.2521.1026xM20
ALTB15-A11 15.94 6.06 14.96 1.692 1.063 11.25 13 13 1.299 6xM24
ALTB20-A15186.0614.961.6921.06311.25133.31.2993xM24
Dimensional Data (in inch)
Model L M N Max. O Max. O Min. P Max. P Min. Q R S
ALTB6-A5 2.04 0.197 1.35 0.718 0.364 1.023 0.551 0.079 0.472 0.787
ALTB8-A6 2.59 0.197 1.653 0.935 0.462 1.24 0.61 0.079 0.551 0.787
ALTB10-A8 3.07 0.197 2.086 1.328 0.561 1.043 0.295 0.079 0.63 0.984
ALTB12-A11 4.8 0.236 2.921 1.427 0.501 1.653 0.748 0.079 0.827 1.102
ALTB15-A11 5.59 0.236 3.681 1.781 0.6 1.338 0.433 0.197 0.866 1.693
ALTB20-A15 6.65 0.236 3.807 2.49 0.718 1.338 0.433 0.197 0.866 1.693
Dimensional Data (in inch)
Model T U Max. V W X1
(H12)
X2 X3 X4
ALTB6-A5 1.26 M60x2 3xM6 2.559 0.63 1.417 2.559 M8
ALTB8-A6 1.456 M74x2 3xM6 3.149 0.63 1.771 3.149 M8
ALTB10-A8 1.653 M87x2 3xM8 3.701 0.63 2.362 4.016 M10
ALTB12-A11 2.047 M135x2 3xM10 5.63 0.787 2.362 5.433 M10
ALTB15-A11 2.441 M155x2 3xM12 6.456 0.787 3.149 6.3 M12
ALTB20-A15 2.441 M180x3 3xM12 7.44 0.787 3.937 6.3 M12