Package printers that invest in the proper cores, shafts, and chucks enjoy smoother, more efficient print runs.

By Missy Smith

Another trend with cores, shafts, and chucks is the shift toward shaftless center-wind technology from shafted center-wind technology, according to Bob Banks, Boschert. “In order to achieve higher line speeds, safety chuck manufacturers try to find ways to improve the concentricity of the safety chuck unit and at the same time allow effective torque transmission and a smoother run,” he explains. “To address this, Boschert GmbH innovated the square/round seat geometry for safety chucks and roll shaft journals. This patented feature is identified by Boschert as the VT-7 style seat geometry. It is available to retrofit on any Boschert VT Style Safety Chuck.”