4H-2/4H-2A

LARGE THRU-HOLE | 4-JAW

LARGE THRU-HOLE POWER CHUCK

LARGE THRU-HOLE | 4-JAW

WEDGE-HOOK type 4-jaw with the extra large through-hole.
Matching surfaces of all parts hardened, ground and lubricated directly.
High rigidity and high repeatability precision.

J is the hole diameter of blank draw nut,

If not notified, Autogrip will adopt the K Default as K value.

K max is the maximum thread specification, and it could be customize.

Catalog Download

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)
4H-206	A5	14	6.0	170	13	23.2 (2375)	66.7 (6810)	5000	0.06	12.5	16.7	TK-C646	2.5(25)
4H-208	A5	18	7.6	210	17	34.3 (3500)	85.8 (8750)	4200	0.19	23.5	25.4	TK-A853	2.8(28)
4H-208	A6	18	7.6	210	17	34.3 (3500)	85.8 (8750)	4200	0.19	23.5	24.3	TK-A853	2.8(28)
4H-210	A6	21	8.9	260	37	49.1 (5010)	152 (15500)	3800	0.4	38.7	44	TK-A1075	3.2(32)
4H-210	A8	21	8.9	260	37	49.1 (5010)	152 (15500)	3800	0.4	38.7	42.3	TK-A1075	3.2(32)

* The 4H-2A's dimensions and specifications are shown in the orange data .
* The 4H-2A series are power chucks with extra large thru-hole design.
* The rotary cylinders are recommended based on power chucks that from 6”~8” are common used in the industry.
* If you find that you need different bore size or installation interface, please just contact us. We have many standard and customized rotary cylinders for option and meet your needs.

Dimensions

Model	-	A	B	B	C	D	D1	D2	E	E1	F	G max.	G max.	G min.	G min.	H	J	K max.	K Default	L	L1	L1	M	N	P	Q max.	Q min.	R max.	R min.	S	T	U
4H-206	A5	170	81	91	140	104.8	82.56	116	5	15	53	13	28	-1	14	17.5	20	M60x2	M55x2	4~M10	16	16	37	73	20	21.25	9.25	36	33	31	12	3~M6
4H-208	A5	210	91	109	170	133.4	82.56	104.8	5	23	66	16.5	39.5	-1.5	21.5	20.5	30	M75x2	M60x2	4~M12	17	18	38	95	25	23.7	10.2	45.7	41.9	35	14	6~M10
4H-208	A6	210	91	103	170	133.4	106.38	150	5	17	66	16.5	33.5	-1.5	15.5	20.5	30	M75x2	M60x2	4~M12	17	15	38	95	25	23.7	10.2	45.7	41.9	35	14	3~M6
4H-210	A6	260	102	122	220	171.4	106.38	133.4	5	25	86	10.5	35.5	-10.5	14.5	25	45	M95x2	M85x2	4~M16	20	18	43	110	30	32.2	12.7	56.5	52.05	40	16	6~M12
4H-210	A8	260	102	115	220	171.4	139.72	190	5	18	86	10.5	28.5	-10.5	7.5	25	45	M95x2	M85x2	4~M16	20	22	43	110	30	32.2	12.7	56.5	52.05	40	16	3~M8