3/4" Shank Hydraulic Expansion Chuck

K102216491731276 article numbers

High Clamping Force
Runout ≤ 0.003 mm

A hydraulic expansion chuck that clamps the shank with a uniform oil film. One hex screw sets the pressure, and the film damps chatter that a rigid holder would pass straight into the cutting edge.

Type of Product: Hydraulic Expansion Chuck
Interface: Cylindrical Shank
Shank & Holder: 3/4" Shank
Clamping Ø: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4"
Standard: Ground cylindrical shank
Coolant Supply: Central

Order number

6 articles match

Select the dimensions below to find your order number.

Clamping diameter

d · mm

Balanced Balanced to G2.5Catalogue Volume 1, p. 129

Description

A hydraulic expansion chuck that clamps the shank with a uniform oil film. One hex screw sets the pressure, and the film damps chatter that a rigid holder would pass straight into the cutting edge.

Quality assurance

High Clamping Force

Runout ≤ 0.003 mm
Excellent Damping
Balanced Balanced to G2.5
Made to Order

Features

Runout under 0.003 mm at 2.5× diameter, repeatable over the tool life
Clamps and releases with a single hex key — no heating, no external equipment
Oil film raises tool life by up to 30% in reaming and finish milling
Reduction sleeves take the clamping range down without loss of accuracy

Technical specifications

Type of Product	Hydraulic Expansion Chuck
Interface	Cylindrical Shank
Shank & Holder	3/4" Shank
Clamping Ø	1/4", 5/16", 3/8", 1/2", 5/8", 3/4"
Standard	Ground cylindrical shank
Coolant Supply	Central
Balancing Grade	Balanced to G2.5
Availability	Made to Order

Dimension table

6 article nos.

6 article numbers

Item name	dmm	Dmm	D1mm	D2mm	G	Lmm	L1mm	L2mm	L3mm
DIA 3/4'' HC1/4'' 150 -	1/4''	3/4''	16	31.5	M5	150	37	54	100
DIA 3/4'' HC5/16'' 150 -	5/16''	3/4''	18	31.5	M5	150	37	54	100
DIA 3/4'' HC3/8'' 150 -	3/8''	3/4''	20	31.5	M6	150	41	54	100
DIA 3/4'' HC1/2'' 150 -	1/2''	3/4''	25	31.5	M6	150	46	100	100
DIA 3/4'' HC5/8'' 150 -	5/8''	3/4''	27.5	31.5	M10	150	49	60	100
DIA 3/4'' HC3/4'' 150 -	3/4''	3/4''	31.5	31.5	M10	150	51	100	100

Need a modified version? We build to print.

Special gauge lengths, clamping diameters and interfaces — engineered and manufactured in-house at Pune.