Bertsch Bending Rolls

Our Bertsch plate roller lines have their roots in the long history of the Bertsch name, which has earned worldwide recognition as the leader in the manufacturing of innovative, heavy-duty metal rolling equipment.

Unparalleled Service

With Piranha’s acquisition of Bertsch in 2003, Bertsch customers can now take advantage of our unparalleled customer service.

Our Bertsch bending rolls can roll to 1.1 times top roll diameter. They also can pre-bend at rated rolling capacity.

Serious Advantages

Other advantages of our Bertsch bending rolls include:

• More pre-bend
• Minimum rolling diameter at maximum material thickness/width
• Designed for long life
• Quality parts
• Easier to use
• Higher capacity

Built to handle the most severe applications, our custom plate rollers deliver power and precision for materials up to 14” thick.

Rectilinear Guides

Rectilinear guides and electronic roll leveling are the foundations of our reputation for long-lasting heavy-duty rolls. The Rectilinear Guide concept consists of forming rolls that are guided in place by a machined surface, and bearing blocks mounted directly above the hydraulic cylinder. The position of the rolls is controlled by the hydraulic cylinder with no additional moving parts.

Our rectilinear guide system transmits the forming roll forces directly to the hydraulic cylinder, into the machine frame, and into the foundation. There are no load-bearing wear points or torsional stresses affecting roll parallelism and accuracy. This leads to a long service life, consistent parts, and low maintenance. The centerline of the forming roll is close to that of the pinch roll. This allows the flat areas associated with pre-bending to be small and consistent. In addition, we size the direct-acting hydraulic cylinders to pre-bend to the maximum rolling capacity of each machine.

Each side of every forming roll is individually controlled, allowing fine roll adjustments, making cone rolling easy to set up. There are no torque tube stresses to account for.

Pre-bending to the full rated capacity plate is accomplished with sufficient power in each side roll hydraulic cylinder. Many competitors are not capable of pre-bending to their maximum rated rolling capacity.

Rolls are easily adjusted on either end with Bertsch’s unique electronic leveling system. Roll corrections are more difficult on competitors’ plate rolling machines because they allow adjustment on one end only.