1-1/4" Shank Hydraulic Expansion Chuck

K102196531161273 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: 1-1/4" Shank
Clamping Ø: 3/4"
Standard: Ground cylindrical shank
Coolant Supply: Central

Order number

3 articles match

Select the dimensions below to find your order number.

Clamping diameter

D · mm

Balanced Balanced to G2.5Catalogue Volume 1, p. 128

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	1-1/4" Shank
Clamping Ø	3/4"
Standard	Ground cylindrical shank
Coolant Supply	Central
Balancing Grade	Balanced to G2.5
Availability	Made to Order

Dimension table

3 article nos.

3 article numbers

Item name	dmm	Dmm	D1mm	D2mm	G	h	Lmm	L1mm	L2mm	L3mm
DIA 1-1/4'' HC3/4'' 059 -	3/4"	—	1-1/4"	60	M18	21.5	59	42.8	19.5	—
DIA 1 1/4'' HC3/4'' 150 -	3/4"	1 1/4''	31.5	31.5	M10	—	150	51	90	90
DIA 1 1/4'' HC3/4'' 200 -	3/4"	2 1/4''	31.5	31.5	M10	—	200	51	90	90

Need a modified version? We build to print.

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