638 PK – Pneumatic expanding shafts with lugs

Description

The Model 638/PK is primarily recommended for unwinding and winding rolls that have cores.

The body of the shaft is available in a variety of steels or in a variety of light alloys; the expanding lugs come in either steel, plastic or rubber covered depending upon core material and torque requirements. The journal ends are also available in a variety of steels and are always custom-made. Expansion is accomplished by a single inflatable tube that exerts pressure to engage the expandors when air is applied. An exclusive tube protector works to substantially reduce wear and potential rubber tube leakage. Models ordered with journals bigger than 50 mm diameter can be fitted with the SVECOM quick-change air tube, which will allow you to change rubber tubes without removing the shaft from the roll or the machine.

Standard sizes available for this Model are listed below.

Features

Core diameter: from 60 to 300 mm

Face width: from 600 to 4000 mm

Expansion range: 10 mm on diameter

 

Contact SVECOM for Non-Standard requirements.

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