DESCRIPTION

With plate rolls that have a long top roll with a small diameter, you will see more deflection. Imagine standing on the middle of a 6 x 4 wood beam supported at two ends. As the length on the wood beam gets longer, the deflection where you are standing would sag downwards more. The same concept is applied to steel plate rolling.

To compensate for this deflection in a plate roll, the top roll is “crowned.”  A “crown” is the barrel shape of the top roll that is needed to obtain a uniform distribution of the pressure required for the rolling of steel plate. A plate roll has supports at each end and the top roll deflects in the middle when the plate is in motion. This affects the parallelism on the edges of the rolled part.

plate roller 

The top roll can be sized to roll plate into cylinders or cylinder segments to radii close to the diameter of the top roll.  However, relatively small top rolls can deflect in the center under the pressure of curving steel plate.  Alternately, larger-diameter top rolls deflect less but limit the machine to rolling only larger diameters. 

Specification of plate roller

1. Special bending techniques, high-accurate end pre-bend, numerical control
2. Man-machine conversation, bending auto-compensation