Oval hole roller shutter door roll forming machine, sikat ito sa North America at 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, bilis na may butas 5m/min,bilis na walang butas 9m/min
Ang haba ng slat ay maaaring itakda nang arbitraryo sa plc (sa kondisyon na ang kabuuang haba ay tumutugma sa bilang ng mga butas)