This thick cardboard, plastic, or metal cylinder acts as the foundation for a web of paper. The press unwind stand features chucks or an expanding shaft that grips the inside of the cylinder tightly, allowing the machine to pull the paper through the printing units under controlled tension.
The chuck is slipping because the cardboard core got crushed in transit.
Standard paper cores in commercial web offset are usually three or six inches in inside diameter.
Related terms
Same word, different worlds
The central glass region of an optical fiber where the light actually travels.
Printed Circuit BoardsFully cured laminate with copper on both sides, etched into inner layers and bonded with prepreg into a multilayer.
Concrete & CementA cylinder of hardened concrete drilled out of a structure to test its strength or inspect its condition.
Asphalt PavingA cylinder of pavement drilled out of the finished mat and sent to the lab for density and thickness.
NonwovensTube, usually paperboard, on which nonwoven fabric is wound to make a roll.