Even the friction shaft model DIF is particularly indicated for the rewinding of reels of materials with differing thicknesses over the width of the web maintaining at the same time an equal tension as in the case of multiple slit reels.

Recommended for use on slitting and rewinding machines, this friction shaft ensures from the first runs an equal and uniform winding of each single reel.

The friction force is regulated, when the machine is running, by a continuous air supply at a pressure ranging from 0 to 6 bar through a rotating joint connected to the axis of the shaft.

The special keys made of metal alloy, fitted inside the exclusive interchangeable key rows, in direct contact with the inside of the cores transmit the necessary torque to the individual reels to ensure a uniform winding.