Key benefits Twoway rewinding with a large 7 inch diameter and 4 inch width provides efficient automatic operation and longer intervals between changes. Speed sensing technology and a gravity selfsensing adjustment rod help maintain alignment, reduce setup time, and ensure smooth operation with most printers. Automatic pause when the connected printer stops prevents wasted material and protects downstream components. An ergonomic side knob enables quick 110 gear speed adjustments, with rewinding speeds reaching up to 100 rpm for real time control during use. A selfadjusting pressure bar automatically rises when printer speed exceeds limits, halting paper to safeguard the print head from damage. Compatible with multiple core sizes (1.49 in, 1.57 in, and 3 in), supporting flexible setups for different media stocks. Specifications and features Rewinder diameter: 7 inches; width: 4 inches. Core sizes supported: 1.49 inches, 1.57 inches, and 3 inches. Rewinding direction: twoway for efficient automatic operation. Speed control: 10level gear adjustment via an ergonomic side knob; rewinding speeds up to 100 rpm. Alignment and reliability: speed sensing technology with a gravity selfsensing adjustment rod to prevent misalignment; automatic pause when the printer stops. Paper safety: selfadjusting pressure bar rises if printer speed exceeds limits, halting paper to protect the print head. Compatibility: designed to work with most printers. Use scenarios volume printing workflow: connect to a printer and rely on twoway rewinding to maintain continuous output with minimal manual intervention, while the automatic pause prevents waste if the printer stops. Flexible media setups: accommodates common core sizes (1.49 in, 1.57 in, 3 in) for different media stocks, enabling quick changeovers without tools. Variablespeed printing environments: use the 110 gear range to match rewinding speed to printer speed, up to 100 rpm, while the selfadjusting pressure bar protects the print head from damage during fast runs.