Brief introduction： 1.Stable production speed up to 400 m/min; 2.Made by quality steel with compact structure; 3.Independent servo motor drive, precise and efficient; 4.Unique control technology, the jumbo roll surface flatness can reach ±0.5 mm; 5. Machine efficiency improved by 15% by adding automation functions in core feeding, web cutting and blowing; 6. High precision closed-loop motion control system consisted of PLC and frequency convertor; 7. Each unwind backstand is equipped with web tension control system to secure real time monitoring and web tension precise adjustment; 8. Dual airbag pressurization controlled calendaring unit.