638 PLA – Pneumechanical expanding shafts with ledges with lateral movement


The Model 638/PLA is recommended for unwinding and winding rolls with cores.

The body of the shaft is available in steel or aluminum, depending on the reel weight and the expansion ledges come in metal covered by rubber. The journal ends are also available in a variety of steels and are always custom-made. Expansion is accomplished by spring mechanical actuation that, by acting on inclined planes, engage the expandors by blocking the core. Designed for line-up of material even during unwinding through the manual rotation of a knob.

Standard sizes available for this Model are listed below.




Core diameter: from 70/76 to 150 mm

Face width: from 200 to 1500 mm

Expansion range: 8mm on diameter


Contact SVECOM for Non-Standard requirements.

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