A good start makes a difference-1

In a roll forming line, the entrance guide serves to guide the metal strip into the roll former at the optimum angle and elevation.

To achieve the correct feeding angle, the entrance guide should be parallel to the metal forming direction. Any horizontal rotation will push the strip off-center horizontally. The correct elevation can eliminate additional stress and strain at the edges of the metal strip and can reduce the distance between the entrance guide and the first pass.