Pneumechanical expanding shafts with lugs mod. 638 PMK


Pneumechanical expanding shaft with lugs mod. 638 PMK 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. The expansion lugs come in either steel 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 one (or more) air activated pistons that mechanically engage the expandors self-centering the core. Expansion can be spring-activated so as to grant the core is gripped also in case of air leakage in the machine.

Standard sizes available for this Model are listed below.

Require an estimate


Face width: from 800 to 4000 mm

Expansion range: 10/12 mm on diameter

Air pressure: min. 5 bar (suggested 6 bar)


Contact SVECOM for Non-Standard requirements.

Download pdf file

Do you want to receive more information on this product?


    I declare to have read and understood the informative of the art 13 Regulation (EU) 679 and I authorize the treatment of my personal data *

    Subscribe to the newsletter

    Information pursuant to art. 13 Regulation (EU) 679/2016. The data provided with the completion of this information
    request form will be processed and printed. Your data will be used exclusively to respond to your specific requests.
    Your data will not be communicated or disclosed to third parties. The data controller is Svecom-P.E. to which you
    can apply for the exercise of the rights referred to in Article 15 of Regulation (EU) 679/2016. To view the full
    information, refer to the privacy