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Pneumatic Shafts with Ledges

Pneumatic expanding shafts with ledges from Svecom

Shaft Model 640PL

This pneumatic expanding shaft is recommended for unwinding or winding rolls with cores.

The expanding shaft can be used for all types of cores, multiple rolls, and larger diameter requirements. The body of the shaft is available in a variety of light alloys or in a variety of steel, and expandors in steel, rubber, plastic or in combination, depending from the applications. 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. Each tube exerts pressure equally to engage the expandors when air is applied. This system results in greater self-centering qualities than other pneumatic shafts presently available. On request, tubes can be independent; this way, any leakage in one tube deflates only the broken one whilst the adjacent tubes continue to hold the core. Tube changes are quick and easy, accomplished without journal removal. Hex sockets free both expandors and tube for a quick procedure.

Standard sizes available for this Model are listed below.

FEATURES

  • Core diameter: from 25 to 600 mm
  • Face width: up to 9000 mm
  • Expansion range: 8 mm on diameter
  • Balancing: up to 2200 rpm
  • Air pressure: min. 5 bar (suggested 6 bar)

Shaft Model 641PR

This pneumatic expanding shaft with ledges and rotating body is recommended for winding of plastic material that should not be stretched.

The expanding shaft can be used for all types of cores and for multiple rolls. The body of the shaft is available in either light alloy or steel, and expandors are usually in rubber, to grant the perfect core gripping. The journal ends are also available in a variety of steels and are always custom-made; as they are mounted on roller bearings and connected through a passing bar, they rotate simultaneously and grant therefore a uniform winding. Expansion is obtained by a system of inflatable tubes that are located beneath each row of expandors. Each tube exerts pressure equally to engage the expandors when air is applied. This system results in greater self-centering qualities than other pneumatic shafts presently available. Tube changes are quick and easy, accomplished without journal removal. Hex sockets free both expandors and tube for a quick procedure.

Standard sizes available for this Model are listed below.

FEATURES

  • Core diameter: from 50 to 600 mm.
  • Face width: up to 9000 mm.
  • Expansion range: 8 mm on diameter

OTHER SVECOM SHAFTS:

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Also available to download:

Jarshire Expanding Shafts Catalogue
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