Expandable chucks

22 companies | 60 products

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

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These foot and flange safety chucks can be purchased in two versions whether...

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Taper Collet Centre Mandrels BKDI

Features

For clamping diameters between 11,9 mm and 129,6 mm
High true running...

The LBDF model is a clamping chuck developed by Siam Ringspann. It is specifically designed to...

The BKDF is manufactured by SIAM Ringspann. It is a taper collet flange mandrel BKDF, that...

The HKDF unit is a tapered sleeve flange mandrel that is ideally utilized by applications...

Flat Element Flange Mandrels KFDF
as Complete Clamping Fixture

Features

For clamping diameters from 120 mm to 325 mm
High true...

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This product is often regarded as a complete clamping fixture, offering support for various applications in the industry. In addition to the support for clamping...

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Roehm's KFS and MFS series of cartridge mandrels is generally used for applications that involve turning, cutting, toothcutting, measuring, balancing,...

The MZS is suitable for use in turning, grinding, cutting, and measuring operations. The unit provides...

The KFB Series of Expandable Chuck, manufactured by RÖHM, is specifically designed for turning, milling, grinding, and...

The MZB Series of Expander/Automatic Control, manufactured by ROHM, is specifically designed for turning, grinding,...

The MZE model provides internal clamping on grinding, and easy turning operations. It can also...

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These high speed clamping pliers are developed by Maprox GmbH. They are specifically designed...

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The CK-S, manufactured by Renova, ensures firm expansion at minimal torques. The automatic expanding chuck...

This chuck lock features a self-expanding and self-locking structure. The device is specifically...

The CK-PM are self-expanding and self-locking chuck locks. The locks are made of treated seal which...

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

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

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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...

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

With the SG clamping System, a split clamping bush with special buttress threads is screwed onto the main body. By introducing an axial...

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

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Coils are loaded on the expanding mandrels to be held firmly in place during the uncoiling and coiling process. Fives offers a wide range of mandrels specially designed for these operations.

"Reverse pyramid" shaft mandrels
Compared to a standard pyramid mandrel (expand...

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To balance tools with cylindrical bore
...

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

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...

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

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

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

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

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Flexibility thanks to the modular system

I.D., O.D. or jaw clamping it's easy with the B-Top3 modular system. Everything fits together. With the MANDO Adapt segmented mandrel, you can change to perfect I.D. clamping in less than 2 minutes. The SPANNTOP adaptation is the right partner if you have reached your holding power and accuracy limits for O.D clamping. And all without removing the...

Without draw bolt.

Advantages
Only radial clamping, no...

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Clamping mandrels SDH are suitable for small workpiece diameters.

The clamping mandrel SDH has the advantage of gentle application of...

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

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Hand or Power Operated Expanding Mandrels
Size...

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

Hand or Power Operated Expanding Mandrels
Size...

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

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How to choose this product

expandable-chuck

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.

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.

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.

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

- Concentricity

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