It's a WEDGE-HOOK type 4-jaw with the large through-hole.

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

Construction of high rigidity and high clamping accuracy.

J value is the hole diameter of bank draw nut, L is the maximum thread specification, and it could be customize.

Dimensions Brand	A	B	C	D	E	F		G	H	J	K		L
						Max	Min				Max	Min	Max	Min
2M-05	80	135	55	28	35	6	-9	7	14	100	32.9	27.45	17	5.5
2M-06	140	165	74	34	36	101.5	81.5	5		104.8	38.7	31.4	17.6	7
3M-05	80	135	55	28	35	6	-9	7		100	32.9	27.45	17	5.5
3M-06	140	165	74	34	36	101.5	81.5	5		104.8	38.7	31.4	17.6	7

Dimensions Brand	M	N	O	P	Q	R	S
2M-05	14	62	31	25	M12x1.75	4-M8	10
2M-06	20	73	37	31	M16x2	6-M10	12
3M-05	14	62	31	25	M12x1.75	4-M8	10
3M-06	20	73	37	31	M16x2	6-M10	12

Dimensions Model Type	Plunger stroke[mm]	Claw Stroke (Diameter) [mm]	Clamping Diameter [mm]		Maximum Allowable Force KN(kgf)
			Max	Min
2M-05	15	10.9	135	14	6.5 (660)
2M-06	20	14.5	165	14	14.3 (1460)
3M-05	15	10.9	135	14	9.8 (1000)
3M-06	20	14.5	165	14	21.6 (2200)

Dimensions Model Type	Maximum Clamping Force KN(kgf)	Maximum Rotating Speed [rpm]	I Kg. m2	Weight [Kg]	Associate Rotary Cylinder	Maximum Working Pressure(kg/cm2)
4B(D)-06 A5	11 (1120)	4500	0.02	6	CK-75N	2.7 (27)
4B(D)-08 A5	24 (2450)	4000	0.04	12	CK-100N	2.6 (26)
4B(D)-08 A6	16.4 (1670)	4500	0.02	6.5	CK-75N	2.6 (26)
4B(D)-10 A6	36 (3680)	4000	0.04	12.5	CK-100N	2.7 (27)

※ The company produces a balanced structure of adjustable chuck, adjustable I value

NON-THRU-HOLE CAN CHANGE JAW COLLET CHUCK