Pneumatic expanding shaft BUTLER type

Description

The pneumatic expanding shaft BUTLER type model is primarily recommended for unwinding and winding rolls that have cores when a high torque to be transmitted and heavy working conditions is required.

The body of the shaft is available in a variety of high-strength steels; the expanding lugs come in either steel with an aggressive profile or plastic 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 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 tubes without removing the shaft from the roll or the machine.

Features

Core diameter from 70 to 300 mm.

Face width from 600 to 4000 mm.

Expansion range 8 mm.

Air pressure min. 5 bar (suggested 6 bar)

 

Contact your SVECOM representative for Non-Standard requirements.

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