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Careful Considerations for Plate Rolling Thickness, Diameter, and Supporting Forces

In the realm of plate rolling, meticulous attention to both material thickness and diameter is essential. The smaller the diameter, the greater the required roll pressure. When designing plate rolling machines for thin-walled tubes, engineers must carefully consider the upper roll position and machine structure, as these factors significantly influence the opening size.

Careful Considerations for Plate Rolling Thickness, Diameter and Supporting Forces
Careful Considerations for Plate Rolling Thickness, Diameter and Supporting Forces

Almost all plate rolling machine designs have a maximum roll circle diameter of 1.5 times the upper roll’s diameter. This means that a 50mm upper roll can achieve a maximum internal diameter of 75mm. However, a new technology has emerged, allowing nearly half of the material to be under pressure during the plate rolling process. With this innovation, the maximum designed plate rolling diameter can reach 1.1 times the old method, expanding the effective diameter range by 30%.

It is crucial to remember that the optimal precision processing range achievable by all plate rolling machines is only half of the design standard.

Considering Supporting Forces for Plate Rolling Machines

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  • Horizontal and Vertical Support Forces: plate rolling machine designers need to take into account the supporting forces acting on the material in both horizontal and vertical directions. By doing so, the workload that previously required two people can be accomplished by one person, leading to valuable labor savings.
  • Supporting Cylindrical Products: When plate rolling cylindrical products, it is essential to consider the diameter-to-thickness ratio. If the diameter exceeds 200 times the material thickness, the plate may experience bending due to its weight. Without appropriate support, achieving the desired diameter becomes challenging.

The Role of Material Support in plate rolling

  • Benefits of plate rolling Machines with Material Support: Investing in plate rolling machines equipped with material support solves these issues effectively. However, some manufacturers may opt for cost-cutting measures by using forklifts or cranes as support, which often proves ineffective and limits the machine’s versatility.
  • Ensuring Ideal Diameter: Material support ensures the material remains in the desired position, preventing unwanted deformations and guaranteeing the ideal diameter during the plate rolling process.

Advancements in plate rolling Technology

Exciting Plate Roll Bending Process of BIT’s 4-Roll Plate Bending Machine【Four Roll Plate Roller】
  • Improved Efficiency and Precision: Advancements in plate rolling technology have led to higher efficiency and precision in the plate rolling process. Modern machines offer more sophisticated control systems, ensuring consistent and accurate output.
  • Expanded Diameter Range: The introduction of new technologies has expanded the effective diameter range achievable by plate rolling machines, catering to a broader spectrum of customer requirements.

Considerations for Material Thickness

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  • Appropriate Roll Pressure: Selecting the appropriate roll pressure is crucial when dealing with different material thicknesses. Proper pressure ensures the material is adequately formed without causing defects or excessive stress.
  • Material Strength and Flexibility: Material thickness significantly affects the strength and flexibility of the plate rolling process. Proper material selection is essential to achieve desired product characteristics.


In conclusion, the plate rolling process requires careful consideration of material thickness and diameter to achieve optimal results. Designers must address supporting forces, select the appropriate roll pressure, and invest in modern plate rolling technologies to ensure efficiency and precision. By incorporating material support and utilizing advanced plate rolling technologies, manufacturers can produce high-quality, accurately formed products while optimizing labor and production costs. With thoughtful planning and the right equipment, plate rolling remains a versatile and reliable method for producing a wide range of products across various industries.