1. Provides a photo-electric sensing system which can trace materials edge automatically to keep the output straight in edge
2. Height sensitivity (50mm/sec), independent of weather and dust
3. Robustness in structure and accuracy in movement, available for every machine, no demand additional
control device support
4. Provides signal light of control box and solenoid valve for easy maintenance and operation
5. Provides for edge position control of various kinds of materials which require straight edge in the process
of roll-up, folding and pasting together such as Pulp, PVC, Press, Dyeing & Finishing industries