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King Bore 3 Jaw Power Chucks

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
MODELATLB6-A5ATLB8-A6ATLB10-A8ATLB12-A11ATLB15-A15ATLB18-A15
Through-Hole (in)2.0472.5983.0714.8035.596.555
Plunge Stroke (in)0.4720.630.7480.9050.9050.905
Jaw Stroke (in)0.2120.2910.3460.4130.4130.413
Pull Force (lbf)797478289647127881592815928
Grip Force (lbf)127881996524902329784038140381
Oper. Pressure (psi)262292392292363363
Max. Speed (rpm)600050004200320025002000
Weight (lbs)315383144287355
Mount of Inertia (kg-m2)0.160.140.40.9534.77
Grip O.D. Range (in).63-5.0.78-6.25.98-8.251.61-10.752.36-14.02.95-16.0
Dimensional Data (in inch)
ModelABC
H6
DEFGHJK
ALTB6-A56.693.585.510.7870.593.254.5664.1250.576xM10
ALTB8-A68.264.056.690.9840.6694.1885.9055.250.7676xM12
ALTB10-A8104.458.661.1810.7085.57.486.750.9446xM16
ALTB12-A1112.45.2711.811.1810.8667.71610.2369.2521.1026xM20
ALTB15-A1115.946.0614.961.6921.06311.2513131.2996xM24
ALTB20-A15186.0614.961.6921.06311.25133.31.2993xM24
Dimensional Data (in inch)
ModelLMN Max.O Max.O Min.P Max.P Min.QRS
ALTB6-A52.040.1971.350.7180.3641.0230.5510.0790.4720.787
ALTB8-A62.590.1971.6530.9350.4621.240.610.0790.5510.787
ALTB10-A83.070.1972.0861.3280.5611.0430.2950.0790.630.984
ALTB12-A114.80.2362.9211.4270.5011.6530.7480.0790.8271.102
ALTB15-A115.590.2363.6811.7810.61.3380.4330.1970.8661.693
ALTB20-A156.650.2363.8072.490.7181.3380.4330.1970.8661.693
Dimensional Data (in inch)
ModelTU Max.VWX1
(H12)
X2X3X4
ALTB6-A51.26M60x23xM62.5590.631.4172.559M8
ALTB8-A61.456M74x23xM63.1490.631.7713.149M8
ALTB10-A81.653M87x23xM83.7010.632.3624.016M10
ALTB12-A112.047M135x23xM105.630.7872.3625.433M10
ALTB15-A112.441M155x23xM126.4560.7873.1496.3M12
ALTB20-A152.441M180x33xM127.440.7873.9376.3M12