W11S 3-Rollers Variable Geometry Plate Rolling Machine

Superiority of Variable Geometry Design

Plate bending/rolling process

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KRRASS’s Variable Geometry machines deliver performance equivalent to that obtained with the more expensive 3-roll Plate Rolling Machine and are therefore ideal for medium-to-heavy-duty plate roller machines.

Exceptionally high rolling capacity is achieved due to the variable bending span of the bottom rolls. The rolling power can be 15-20 % higher than linear guideway and swing-guide designs of the same top roll dia machines.

The particular configuration of this design provides for the plate bending rolls to move independently by hydraulic cylinders – the top roll moves vertically; the bottom rolls move horizontally – and are rotated by integrated planetary gearboxes with hydro-motors. This allows for optimal central distance between the bottom rolls and the distance between the bending points offering immense advantages. 

• For thin plates, the roll span can be drastically reduced, generating excellent traction, and avoiding driving slippage and spring-back. 
• The bending span can be significantly increased for thick plates, thus reducing the bending load and plate deformation. 
• Additionally, bottom rolls can be moved independently from each other and can be placed asymmetrically to achieve high-quality edge bending.

Another critical benefit of horizontally moving bottom rolls is that the plates can be fed using a simple unpowered conveyor, saving costs.

The variable geometry machines deliver multiple advantages to your fabrication infrastructure – a remarkably increased rolling capacity, reduced capital expenditure, and lower ongoing operational costs. They are the most attractive investment for heavy plate thickness (Above 80mm) applications.