The upper roller can move up and down, and horizontally. Moving up and down adjusts the bending rate, moving horizontally completes pre-bending, needn’t add press machine. It can be feed once, you can complete pre-bending and form bending without turning round. And can correct the forming workpiece.
High precision pre-bending
It can set the length freely, upper roller presses directly, can complete high precision pre-bending.
Excellent product precision
The upper roller is in the shape of drum, there are auxiliary rollers to support the adjusting. It can make excellent rolling products with thin to thick metal plates.