- Symmetrical upward adjustment series: up work roller can lift up and down in vertical direction. The distance between two bottom rollers is fixed;
- Up roller universal series: up work roller can lift up and down in vertical direction, and parallel move in horizontal direction. The distance between two bottom rollers is fixed;
- With up beam series: equipped press rollers on up work roller’s top section, and press rollers installed in the lower part of up beam, which is able to improve stiffness of up roller. Meanwhile, up roller is in small diameter which will be suitable for bending the cans with small radius.
