Expanding mandrels

How to choose this product

Expanding mandrels are tool components used to grip objects by their inner diameter. They hold workpieces for machining applications such as turning, milling and grinding.

Applications

Expanding mandrels are most often used on lathes for turning operations. They can also hold parts for measuring purposes, such as checking for concentricity. They also can hold multiple parts simultaneously, making them preferable to lathe chucks for certain turning operations.

Technologies

The expanding mandrel holds a hollow workpiece from within to facilitate work on its exterior surface. A screw or piston gradually expands the tapered mandrel until it grips the piece firmly.

How to choose

Be sure to determine the approximate diameter of the workpiece when selecting an expanding mandrel.

Advantages

- Concentricity

27 companies | 80 industrial products

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1 products SCHUNK
SCHUNK FORTIS
FORTIS SCHUNK

Among Schunk’s special hydraulic technologies is the FORTIS expansion arbors. It is a highly...

1 products SCHUNK
SCHUNK FORTIS
FORTIS SCHUNK

Schunk’s Fortis is an expansion arbor that offer a high run-out precision and repeatability...

1 products SCHUNK
SCHUNK FORTIS
FORTIS SCHUNK

The Fortis is an expansion arbor manufactured by Schunk. Its key features include a superior run-out precision,...

1 products HAIMER
HAIMER
HAIMER

To balance tools with cylindrical bore...

7 products RINGSPANN
RINGSPANN ø 11,9 - 129,6 mm | BKDF
ø 11,9 - 129,6 mm | BKDF RINGSPANN

Taper Collet Flange Mandrels BKDF as Complete Clamping Fixture Features For clamping diameters from 11,9 mm to 129,6 mm...

RINGSPANN ø 9 - 100 mm | HKDF
ø 9 - 100 mm | HKDF RINGSPANN

Taper Sleeve Flange Mandrels HKDF as Complete Clamping Fixtures Features For clamping diameters from 9 mm to 100 mm High true...

RINGSPANN ø 41 - 560 mm | KFDF
ø 41 - 560 mm | KFDF RINGSPANN

Flat Element Flange Mandrels KFDF as Complete Clamping Fixture Features For clamping diameters from 120 mm to 325 mm High true running...

RINGSPANN ø 70 - 200 mm | KUD
ø 70 - 200 mm | KUD RINGSPANN

Clamping Elements Short Elements KUD for customer assembled Short Element Clamping Mandrels Features For clamping diameters from 70 mm to 200 mm High true running...

RINGSPANN ø 200 - 450 mm | KBD
ø 200 - 450 mm | KBD RINGSPANN

Clamping Elements Disc Elements KBD for customer assembled Disc Element Clamping Mandrels Features For clamping diameters...

RINGSPANN ø 11,9 - 129,6 mm
ø 11,9 - 129,6 mm RINGSPANN

Taper Collet Centre Mandrels BKDI Features For clamping diameters between 11,9 mm and 129,6 mm High true running accuracy...

8 products RÖHM
RÖHM KFS / MFS series
Flangemount KFS / MFS series RÖHM

APPLICATION RANGE Turning, grinding, cutting, toothcutting, balancing measuring compact design steady clamping by axial draw-in The draw-in of the work-pieces...

RÖHM MZS
Handoperated MZS RÖHM

APPLICATION RANGE Turning, grinding, cutting, toothcutting measuring compact design steady clamping by axial draw-in The...

RÖHM KFB
Poweroperated KFB RÖHM

APPLICATION RANGE turning, milling, grinding measuring for a very small clamping diameter from Ø5,5mm steady clamping by axial draw-in The draw-in...

RÖHM MZB
Handoperated MZB RÖHM

APPLICATION RANGE Turning, grinding measuring for a very small clamping diameter from Ø5,5mm steady clamping by axial draw-in The...

RÖHM MZE
Handoperated MZE RÖHM

APPLICATION RANGE grinding, easy turning operations measuring cost-effective system clamping...

video RÖHM ABSIS
Poweroperated ABSIS RÖHM

APPLICATION RANGE Turning, grinding, cutting, toothcutting, balancing measuring compact, solid design for precise machining steady clamping by axial draw-in The draw-in of the work-pieces...

1 products SIAM RINGSPANN
SIAM RINGSPANN 11.9 - 129.6 mm | BKDF
11.9 - 129.6 mm | BKDF SIAM RINGSPANN

Taper Collet Flange Mandrels BKDF as Complete Clamping Fixture Features For clamping diameters...

3 products HAINBUCH
video HAINBUCH Ø 20 – 100 mm | MANDO T211
Ø 20 – 100 mm | MANDO T211 HAINBUCH

With draw bolt. Advantages Form-compensating...

video HAINBUCH Ø 8 – 100 mm | MANDO T212
Ø 8 – 100 mm | MANDO T212 HAINBUCH

Without draw bolt. Advantages Clamping...

video HAINBUCH MANDO T812
MANDO T812 HAINBUCH

Without draw bolt. Advantages Only radial clamping, no pull-back...

IBD Wickeltechnik GmbH PSK.ZR.F series
Pneumatic expanding chuck PSK.ZR.F series IBD Wickeltechnik GmbH

Design The IBD clamping chuck PSK.ZR.F is available in the subsequent designs: > to fit for diameters...

IBD Wickeltechnik GmbH MSK-TM series
Flangemount MSK-TM series IBD Wickeltechnik GmbH

Designs The mechanical chucks serie MSK-TM expanded by axial pressure which is supplied by means of the core onto the chuck. IBD expanding chucks serie MSK-TM are available: 1. MSK-TM/A as base...

IBD Wickeltechnik GmbH MSK-S / SM series
Flangemount MSK-S / SM series IBD Wickeltechnik GmbH

Core diameter 70 / 76,2 / 100 / 127 / 150 / 152,4 mm / special sizes on...

3 products Renova Srl
Renova Srl 13 mm | CK-S
Selflocking 13 mm | CK-S Renova Srl

This self-expanding and self-locking chuck locks in both directions of rotation. It is made of treated steel to...

Renova Srl CK-SF
Flangemount CK-SF Renova Srl

This self-expanding and self-locking chuck locks in both directions of rotation. It is made of treated steel...

Renova Srl CK-PM
Pneumatic expanding chuck CK-PM Renova Srl

This self-expanding and self-locking chuck locks in both directions of rotation. It is made of...

3 products EMUGE FRANKEN
video EMUGE FRANKEN ø 5 - 400 mm | SP
ø 5 - 400 mm | SP EMUGE FRANKEN

With the SP System, the clamping sleeves are compressed in the direction of the force by introducing an axial force, which causes them to expand radially. This...

video EMUGE FRANKEN ø 5 - 400 mm | SZ
ø 5 - 400 mm | SZ EMUGE FRANKEN

By introducing an axial force, a split collet is expanded radially over a taper....

video EMUGE FRANKEN ø 5 - 300 mm | SH
ø 5 - 300 mm | SH EMUGE FRANKEN

The SH Hydraulic Clamping System is a closed system that is filled with hydraulic fluid. By introducing force...

Hardinge Workholding
Hardinge Workholding

Hardinge force-limiting step chuck takes the headache out of thin-wall turning. Maintain inside and outside concentricity of thin-wall...

14 products TOBLER
TOBLER ø 8 - 235 mm, ø 1.5 - 5 mm | T-EP series
ø 8 - 235 mm, ø 1.5 - 5 mm | T-EP series TOBLER

Use: turning, grinding, balancing and inspection operations High degree of expansibility 1.5 to 5 mm depending on the diameter of the sleeve Possibility...

TOBLER ø 5.5 - 79.7 mm, ø 0.5 - 1 mm | T-EPN series
ø 5.5 - 79.7 mm, ø 0.5 - 1 mm | T-EPN series TOBLER

Use: turning, milling, grinding, shaving and inspection operations Expansibility 0.5 to 1 mm depending on the diameter of the sleeve Possibility to clamp worpieces with...

TOBLER ø 14.7 - 101.7 mm, ø 1.5 - 2 mm | T-MEP series
ø 14.7 - 101.7 mm, ø 1.5 - 2 mm | T-MEP series TOBLER

Use: turning, milling, grinding, shaving, gear cutting and inspection operations Expansibility...

TOBLER ø 5.5 - 79.5 mm, ø 0.5 - 1 mm | TMCMN series
With morse taper ø 5.5 - 79.5 mm, ø 0.5 - 1 mm | TMCMN series TOBLER

Use: turning, milling, grinding and inspection operations Expansibility 0.5 to 1 mm depending...

TOBLER ø 14.7 - 82.7 mm, ø 1 - 2 mm | TMCM series
With morse taper ø 14.7 - 82.7 mm, ø 1 - 2 mm | TMCM series TOBLER

Use: turning, milling, grinding gear hobbing, balancing and inspection operations Expansibility 1 to 2 mm depending on the diameter...

TOBLER ø 14.7 - 82.7 mm, ø 1 - 2 mm | TMCMT series
With morse taper ø 14.7 - 82.7 mm, ø 1 - 2 mm | TMCMT series TOBLER

Use: turning, milling, grinding gear hobbing, balancing and inspection operations Expansibility 1 to 2 mm depending on the diameter of the sleeve Possibility to clamp...

4 products FORKARDT
FORKARDT
FORKARDT

A venture into new dimensions. Whenever and wherever in the technical world production challenges require innovative workholding solutions with maximum precision...

FORKARDT max. 5 500 daN | EM series
Poweroperated max. 5 500 daN | EM series FORKARDT

Interchangeable clamping sleeves for maximum flexibility. The power-operated...

FORKARDT EM series
Handoperated EM series FORKARDT

A flexible, cost effective and surprisingly efficient alternative. Hand-operated mandrels...

FORKARDT D series
D series FORKARDT

Highlights of the D series Wide clamping range Suitable...

3 products SMW AUTOBLOK
SMW AUTOBLOK Ø 14.7 - 129.7 mm | EM-A
Ø 14.7 - 129.7 mm | EM-A SMW AUTOBLOK

Hand or Power Operated Expanding Mandrels Size...

SMW AUTOBLOK Ø 18 - 105 mm | EM-S
Poweroperated Ø 18 - 105 mm | EM-S SMW AUTOBLOK

Power operated segment sleeve mandrels Size Range: 18mm - 105mm For turning grinding and milling Large expansibility Very...

SMW AUTOBLOK Ø 16.0 - 129.5 mm | EM-B
Ø 16.0 - 129.5 mm | EM-B SMW AUTOBLOK

Hand or Power Operated Expanding Mandrels Size...

2 products Stiefelmayer
Stiefelmayer max. ø 100 mm | SDH
max. ø 100 mm | SDH Stiefelmayer

Clamping mandrels SDH are suitable for small workpiece diameters. The clamping mandrel SDH has the advantage of gentle application...

Stiefelmayer
Stiefelmayer

Segment clamping mandrels have a relatively large clamping stroke, unlike slide bush clamping mandrels, for example. They...

1 products Nann
Nann
Nann

Internal clamping sleeves with double taper are suited to internal clamping...

Positrol Workholding
Hydraulic Positrol Workholding

When High precision chucking is required for Grinding , turning, inspecting, or balancing the...

Positrol Workholding ACF series
Flangemount ACF series Positrol Workholding

Application: Used for most internal workholding applications. Pullback clamping action...

Positrol Workholding ACFxDI series
Flangemount ACFxDI series Positrol Workholding

Application: Used for parts with longer bores or stepped internal diameters. Collets...

Positrol Workholding ACFxPHI series
Flangemount ACFxPHI series Positrol Workholding

Application: Used for internal workholding of parts with longer bores. Higher grip force compared to...

new Positrol Workholding ATFPGI series
Flangemount ATFPGI series Positrol Workholding

Application: Used primarily for gantry or robot load applications. Has more expansion/load clearance than typical...

Positrol Workholding ACBMDH series
ACBMDH series Positrol Workholding

Application: Ideally suited for grinding, turning and inspection operations between machine centers. Each end of the double...

1 products Chevin Tools
Chevin Tools
Chevin Tools

Expanding mandrels are the ideal solution to many workholding problems. By holding parts on most of the datum bore (or outside diameter in the case of a collet chuck) the clamping forces are evenly distributed,...

Yuasa International 400
400 Yuasa International

These specialty designed Expanding Mandrels are offered...

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Associated Terms

expanding chucks, expanding collets, expansion mandrels

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