xpandgrip 4" chuck is a non locking method of gripping cores and is commonly used for cardboards cores on Shaftless unwinding machines.
Thanks to a patented closing system the movement of the keys takes place only when the chuck is completely inserted into the core of the roll.
This new design allows the unwind of the complete roll, without web breakage close to the core, a problem common with most mechanical chucks.
Keys are smooth and rounded in design, which allows the reuse of the cores, saving money and with low maintenance of the chucks.
