Diaphragm Chuck/Collet

KORRETTO Diaphragm Chuck/Collet — a precision collet chuck for CNC machining and turning applications. Key search terms: collet chuck, lathe collet chuck, cnc collet chuck. Provides concentricity ≤0.01 mm for precision CNC lathe and grinding operations. Custom bore sizes available.

Utilizing diaphragm elastic technology, with a repeatability of less than 5μ.

Permanent precision life

High sealing design, waterproof and dustproof capability

Suitable for turning and grinding processes of microelectronic products, optical components, medical parts, and thin and highly precise workpieces.

Built-in air cylinder membrane chuck

Model	Parameters
	A	B	C	D	E(H6)	F	G	H	I	J	Maximum r.p.m	Pressure KG/cm²	Jaw Stroke mm	Weight kg	Collet
JA4-60	100	60	4	10	70	82	97	76	-	4-M6 CBH	4000	2-7	0.1	2.8	JD-60
JA5-70	147	70	4	15	100	115	137	93	3-M8	3-M8 CBH	3200	2-7	0.3	7	JD-70
JA6-100	177	100	5	35	130	147	167	107	3-M10	3-M10 CBH	2500	2-7	0.3	11.5	JD-100
JA8-150	220	150	5	65	180	200	220	124	3-M10	3-M10 CBH	2000	2-7	0.3	15	JD-150

Pull-back Diaphragm Chuck

Model	Parameters
	A	B	C	D	E	F	G	H	L	I	Ⅱ	Pressure KG/cm²	Jaw stroke mm	Collet
JP4-60	116	72	M12*1.5	45	60	6	100	52	41	6-M5 CBH	6-M4 TH	2-7	0.1	JD-60
JP5-70	147	125	M28*1.5	50	70	5	106.4	60	57.2	6-M6 CBH	6-M5 TH	2-7	0.3	JD-70
JP6-100	177	155	M55*2	80	100	5	133.4	90	53	6-M8 CBH	8-M5 TH	2-7	0.3	JD-100
JP8-150	220	190	M82*1.5	120	150	5	170	135	56.89	8-M8 CBH	8-M6 TH	2-7	0.3	JD-150

Stationary Diaphragm Chuck

Model	Parameters
	A	B	C	D	E	F	G	H	L	I	Ⅱ	Pressure KG/cm²	Jaw strock mm	Collet
JP4-60	116	72	M12*1.5	45	60	6	100	52	41	6-M5 CBH	6-M4 TH	2-7	0.1	JD-60
JP5-70	147	125	M28*1.5	50	70	5	106.4	60	57.2	6-M6 CBH	6-M5 TH	2-7	0.3	JD-70
JP6-100	177	155	M55*2	80	100	5	133.4	90	53	6-M8 CBH	8-M5 TH	2-7	0.3	JD-100
JP8-150	220	190	M82*1.5	120	150	5	170	135	56.89	8-M8 CBH	8-M6 TH	2-7	0.3	JD-150