This machine is suitable for high precision slitting various PE, BOPP, PVC, PET, paper and paper-plastic laminated rolling material, especially for the products with low slitting spec. Feature: 1. It adopts pneumatic surface rewinding style, the rewinding will be much better smooth without edge moving. 2. Adopt imported pneumatic round knife with high precision slitting and also can be adjusted freely. 3. Adopt photoelectric automatic error correction system for unwinding, such unequal material become more suitable for slitting. 4. Adopt magnetic powder brake for controlling unwinding and rewinding. 5. Equipped with waste scrap side-blowing device 6. Main machine adopted with frequency converter timing, microcomputer control, automatic counting, automatic length fixed, stopping with alarm, tension with digital indication.