Maintaining equal tension across multiple rolls is critical in high-speed converting operations. The Differential Air Shaft , developed by Cbbmachine, offers a practical solution by enabling individual torque control for each core during simultaneous winding. This innovation reduces material waste, enhances reel uniformity, and minimizes manual adjustments—delivering consistent performance in fast-paced production environments.

Built to adapt to various roll diameters and material types, the shaft functions by inflating a central air bladder, which engages friction elements for each core. These elements automatically slip to adjust torque distribution, ensuring that each roll winds at a matched tension. This mechanism allows for real-time compensation without interrupting the line, which is vital for web-sensitive applications like film slitting, paper rewinding, or label converting.

Unlike conventional shafts that rely on static grip, differential air systems can absorb slight inconsistencies in thickness or weight between rolls. This capability improves end-product quality by reducing telescoping, misalignment, or core damage. As a result, manufacturers benefit from more reliable outputs, fewer defects, and a smoother workflow.

Installation flexibility also adds value. Differential air shafts are compatible with most converting machines and can be custom-configured for different widths and core sizes. Maintenance is minimal, as the shaft components are modular and easy to replace, keeping downtime low and efficiency high.

As demand grows for smarter, more adaptive production tools, investing in a tension control solution that adjusts dynamically becomes an operational advantage. Whether you're scaling up capacity or refining line consistency, a precision shaft can impact every reel that moves through your system.

Curious what a more balanced rewind process looks like? Visit https://www.cbbmachine.com/product/differential-shaft/ and see how the right shaft can reshape your production.