Cooperating closely with the security door manufacturer, we have designed the door frame roll forming lines.
In the end, a saw cutter cut the profiles by different angles, the door header, hinge jamb, and strike jamb are made in one production line.
Normally the fire-rated security door frame uses thicker gauge steel. After the roll forming or press braking, the door header, hinge jamb, and strike jamb are assembled and welded at the joints into a whole door frame.
By Brother Union Machinery roll forming machines, the door frame manufacturers have improved the production efficiency, cut-down the production cost.
The door frame profile has its complicated, the traditional bending machine/press braking is time-consuming and labor-intensive. Especially for large quantity and complex-section steel door frame production, a roll forming machine has its advantages:
Continiuous non-stop production.
Production Speed Higher.
Roll formed door frame has more close tolerances.
Lower Labor-cost than Press Brake.
Cost Effective for large quantity production.
Multiple door frame profiles can be made by one production line.