Oval hole roller shutter door roll forming machine, it's popular in North America and South American.
Torrist structure, the forming roller has high machining accuracy, and the roller use material as Cr12 with high precision work ,heat treatment, uselife is longer

Special design of oval hole , 3 stations of punching, edging and flanging at the same time, accurate hole size (152 * 25MM), accurate punching position, no half hole, flanging does not hurt finger
tracking cut , speed with hole 5m/min,speed without hole 9m/min

The length of the slat can be set arbitrarily in plc (provided that the total length matches the number of holes)
