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Atlas King Bore 3-Jaw Power Chucks

Atlas ATLB Series King Bore 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

ATL & ATLB Manual 2021

MODEL	ATLB6-A5	ATLB8-A6	ATLB10-A8	ATLB12-A11	ATLB15-A15	ATLB18-A15
Through-Hole (in)	2.047	2.598	3.071	4.803	5.59	6.555
Plunge Stroke (in)	0.472	0.63	0.748	0.905	0.905	0.905
Jaw Stroke (in)	0.212	0.291	0.346	0.413	0.413	0.413
Pull Force (lbf)	7974	7828	9647	12788	15928	15928
Grip Force (lbf)	12788	19965	24902	32978	40381	40381
Oper. Pressure (psi)	262	292	392	292	363	363
Max. Speed (rpm)	6000	5000	4200	3200	2500	2000
Weight (lbs)	31	53	83	144	287	355
Mount of Inertia (kg-m2)	0.16	0.14	0.4	0.95	3	4.77
Grip O.D. Range (in)	.63-5.0	.78-6.25	.98-8.25	1.61-10.75	2.36-14.0	2.95-16.0

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-A6	8.26	4.05	6.69	0.984	0.669	4.188	5.905	5.25	0.767	6xM12
ALTB10-A8	10	4.45	8.66	1.181	0.708	5.5	7.48	6.75	0.944	6xM16
ALTB12-A11	12.4	5.27	11.81	1.181	0.866	7.716	10.236	9.252	1.102	6xM20
ALTB15-A11	15.94	6.06	14.96	1.692	1.063	11.25	13	13	1.299	6xM24
ALTB20-A15	18	6.06	14.96	1.692	1.063	11.25	13	3.3	1.299	3xM24


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