638 PLA – Mechanical expanding shaft with ledges and sideways 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 winding through the manual rotation of a knob.
Core diameter from 70/76 to 150 mm
Face width from 200 to 1500 mm
Expansion range 10/12 mm
Air pressure min. 5 bar (suggested 6 bar)
*Contact your SVECOM representative for Non-Standard requirements.