Autogrip® CNC Machine Chucks and Workholding Solutions Supplier

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CRANK type Extra Long Stroke Thru-Hole 3-Jaw Power Chuck

Thru-Hole | Three JAW CHUCK

Our 3 jaw lathe chuck is widely used for Lathes and milling machines, it is best for holding and rotating the workpiece during machining operations such as turning, thread cutting, facing, boring, drilling, grinding, and parting.

Crankshaft three jaw lathe chuck with the large through-hole, and extra-long jaw stroke.

3 jaw power chuck has the same self-centering chuck, its jaws are interconnected via a scroll gear and can move at the same time.

Matching surfaces of all parts hardened, ground, and lubricated directly.

High rigidity and high repeatability precision.

three jaw chuck is the best option for holding circular or hexagonal cross-sections

3 jaw lathe chuck with an accuracy level of around 0.010

J is the hole diameter of the blank draw nut, K is the maximum thread specification, and it could be customized.

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Specifications

Model	-	Plunger stroke (mm)	Jaw stroke (Dia.) (mm)	Chucking Dia. Max. (mm)	Chucking Dia. Min. (mm)	Max. D.B. pull kN (kgf)	Max. clamping force kN (kgf)	Max. speed min^-1 (r.p.m.)	I kg‧m ²	Weight (kg)	Weight (kg)	Matching cyl.	Max. pressure MPa (kgf/cm²)
3L-205	A4	12	18	138	6	15.6 (1590)	17.2 (1750)	4200	0.019	7.2	8.0	TK-A533	2.3(23)
3L-206	A5	15	24	170	24	23.5 (2400)	26 (2650)	3600	0.063	14.7	15.9	TK-C646	2.7(27)
3L-208	A5	20	32	215	30	34.3 (3500)	35.0 (3570)	3000	0.18	23	25.7	TK-A853	2.8(28)
3L-208	A6	20	32	215	30	34.3 (3500)	35 (3570)	3000	0.18	23	24.6	TK-A853	2.8(28)
3L-210	A6	25	37.5	260	53	47.7 (4870)	48.0 (4895)	2400	0.35	39.5	46.5	TK-A1075	3.1(31)
3L-210	A8	25	37.5	260	53	47.7 (4870)	48.0 (4895)	2400	0.35	39.5	45	TK-A1075	3.1(31)
3L-212	A8	30	45	315	61	64.7 (6600)	61 (6220)	2100	0.827	67.3	70.5	TK-A1291	3.0(30)
3L-215	A8	35	52	405	52	84.3 (8600)	85.0 (8665)	1600	2.58	139	152	TK-A1512	2.7(27)
3L-215	A11	35	52	405	52	84.3 (8600)	85.0 (8665)	1600	2.58	139	145	TK-A1512	2.7(27)

* The dimensions and the specifications of 3L-A are in the red data.

Dimensions

Subject to technical changes.

Model	-	A	B	B	C	D	D1	D2	E	E1	F	G max.	G max.	G min.	G min.	H	J	K max.	L	L1	L1	M	N	P	Q max.	Q min.	R max.	R min.	S	T	U
3L-205	A4	138	65	76	110	82.6	63.51	96	4	15	32	1	15	-11	3	20	12	M40x1.5	3~M10	15	15	31	62	14	15.75	5.25	38.5	29.5	25	10	3~M6
3L-206	A5	170	84	97	140	104.8	82.56	116	5	18	45	6.5	24.5	-8.5	9.5	19	20	M55x2	3~M10	18	15	37	73	20	15.25	7.75	51	39	31	12	3~M6
3L-208	A5	215	96	114	170	133.4	82.56	104.8	5	23	52	7	30	-13	10	20	30	M60x2	3~M12	18	19	38	95	25	19.25	10.25	63.5	47.5	35	14	6~M10
3L-208	A6	215	96	114	170	133.4	106.38	150	5	23	52	7	30	-13	10	20	30	M60x2	3~M12	18	20	38	95	25	19.25	10.25	63.5	47.5	35	14	3~M6
3L-210	A6	260	108	128	220	171.4	106.38	133.4	5	25	75	8.5	33	-16.5	8	25	45	M85x2 / M60x2	3~M16	24	20	43	110	30	24.75	11.25	80	61.25	40	16	3~M12
3L-210	A8	260	108	121	220	171.4	139.72	190	5	18	75	8.5	26.5	-16.5	1.5	25	45	M85x2	3~M16	24	21	43	110	30	24.75	11.25	80	61.25	40	16	3~M8
3L-212	A8	315	125	138	220	171.4	139.72	190	5	18	91	15	33	-15	3	30	50	M100x2	3~M16	24	21	51	130	30	29.75	13.25	96.5	74	50	21	3~M8
3L-215	A8	405	150	177	300	235	139.72	171.4	6	33	120	12.5	45.5	-22.5	10.5	39	60	M130x2	6~M20	33	27.5	63	165	43	34.75	13.75	119	93	62	25.5	6~M16
3L-215	A11	405	150	166	300	235	196.87	260	6	22	120	12.5	34.5	-22.5	-0.5	39	60	M130x2	6~M20	33	31	63	165	43	34.75	13.75	119	93	62	25.5	3~M10

* The dimensions and the specifications of 3L-A are in the red data.

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