640 PQL – Pneumatic self-expanding shafts with ledges


The 640/PQL shaft grants a perfect unwind and rewind with cores at high linear speeds.

It is equipped with the tested SVECOM self-centering air system, with metal centering ledges and rubber gripping ledges. It can be used for all types of cores, multiple rolls and larger diameter requirements. The shaft body is available in a variety of steels and light alloys. The journal ends are also available in a variety of steels and are always custom made. Expansion is obtained by a system of inflatable tubes that are located beneath each row of expandors. Tube changes are quick and easy, accomplished without journal removal.

Standard sizes available for this model are listed below.


Core diameter: from 70 to 600 mm

Chuck length: up to 12.000 mm

Expansion range: 8/mm on diameter

Air pressure: min. 5 bar (suggested 6 bar)


Contact SVECOM for Non-Standard requirements.

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