3-roll plate bending rolls, a universal machine for all plate bending jobs, and especially for the job-shop fabricator. The 3-roll, double pinch design which provides excellent prebending capabilities; it is easy to prebend both the leading and trailing edge without removing, turn, and re-insert the plate. The quality of a profile rolled on this machine will be the same to ones rolled on 4-roll double pinch or 3-roll single pinch machines. The two lower rolls can be adjusted individually of each other, with infinitely variable adjustment speeds, in a curved path around a common center. The standard rolls are manufactured of SF45C solid steel forgings with carbon 0.38 ~ 0.45% and go thru high frequency heat treatment on surface at HRC50 or above for maximum surface hardness. Especially on the top roll, it comes with cambering design for compensating during rolling.Furthermore, all rolls are equipped with self-aligning and lubricating bearings.A single hydraulic motor with a reducer and chains drives all three rolls, allowing any one, two, or all three rolls to provide 100% driving torque at all times. This drive system is easy to maintain, and also the most effective system for drive torque.This type of machines is most suitable to do the job from 6mm to 75 mm thickness, with 2000 mm to 6000mm width. |
