VDI40 Hydraulic Chuck

K102626376341274 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: VDI Shank
Shank & Holder: VDI40
Clamping Ø: Ø20, Ø32, 3/4", 1-1/4"
Standard: DIN 69880 (VDI)
Coolant Supply: Central

Order number

4 articles match

Select the dimensions below to find your order number.

Clamping diameter

d · mm

Balanced Balanced to G2.5Catalogue Volume 1, p. 130

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	VDI Shank
Shank & Holder	VDI40
Clamping Ø	Ø20, Ø32, 3/4", 1-1/4"
Standard	DIN 69880 (VDI)
Coolant Supply	Central
Balancing Grade	Balanced to G2.5
Availability	Made to Order

Dimension table

4 article nos.

4 article numbers

Item name	dmm	Dmm	D1mm	D2mm	G	Lmm	L1mm	L2mm	Weightkg
VDI40 HC20 L064 (with stopper)	20	40	42	83	M20	64	51	42	1.91
VDI 40 HC3/4'' 064 -(with stopper)	3/4"	40	42	83	M20	64	51	42	—
VDI40 HC32 L086 (without stopper)	32	40	64	83	—	86	—	64	—
VDI 40 HC1-1/4'' 086 - (without stopper)	1-1/4"	40	64	83	—	86	—	64	—

Need a modified version? We build to print.

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