Storage Tanks

Rolling Solutions for Large-Scale Fabrication

Q: How do you prevent material deformation and sagging when rolling thin, large-diameter plates for storage tanks?

Fabricating large-diameter storage tanks often involves handling exceptionally long, thin plates that can easily sag, deform, or collapse under their own weight during the rolling process. Davi addresses this structural challenge by equipping our 4-roll plate rolls with an integrated suite of handling accessories, including overhead supports and side supports available in single or double articulation, designed for plate thicknesses typically ranging from 6 mm (0.24 in) to 40 mm (1.57 in). By physically supporting the plate throughout the entire bending cycle, these automated systems eliminate material deformation, enhance operator safety, and dramatically reduce cycle times, allowing you to achieve highly precise, repeatable geometries without relying on constant overhead crane assistance.

Q: Should we choose a horizontal or a vertical plate rolling machine for our storage tank production?

Selecting the right layout depends entirely on your workshop space, assembly sequence, and handling logistics, as improper machine alignment can lead to costly material handling bottlenecks. To resolve this, Davi offers 4-roll plate bending machines in both horizontal and vertical configurations, allowing you to tailor the machinery to your specific factory layout and manufacturing flow. While our vertical rolling systems are engineered to simplify the handling and assembly of extremely large-diameter shells, our horizontal setups integrate seamlessly with high-speed automated lines, ensuring you maximize floor productivity, optimize ROI, and maintain total operational continuity.

Q: How does automation in feeding and conveying improve the productivity of long plate rolling?

Manually positioning and feeding very long plates into a bending roll is a slow, labor-intensive process that frequently introduces alignment errors and risks operator safety. Davi solves this bottleneck by incorporating fully integrated, automated infeed and outfeed conveyor systems that streamline material movement through the rolling line. This advanced handling automation ensures perfect plate alignment from the very beginning of the cycle, reducing human error, lowering labor costs, and boosting overall throughput so you can scale your tank production with minimal operational complexity.

Q: How do you ensure the structural reinforcement sections of the tank fit perfectly with the rolled plates?

Ensuring a tight, precise fit-up between the rolled tank shell and its structural reinforcement sections is critical to the tank's structural integrity, yet bending these heavy profiles with high repeatability can be difficult. Davi provides a highly precise solution by pairing our plate rolls with specialized Angle Rolls equipped with customized tooling engineered to bend structural reinforcement profiles with high accuracy. This vertical-industry expertise guarantees that your structural rings match the rolled shell's curvature perfectly, eliminating time-consuming manual rework, mitigating structural risks, and ensuring long-term vessel reliability.

The production of storage tanks involves handling exceptionally long plates and achieving very large diameters with precision. Davi provides rolling technology and specialized handling systems designed to streamline the fabrication of tanks for water, oil, chemicals, and other industrial liquids, ensuring structural integrity and high productivity.

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Rolling for Large Diameters

Davi’s solutions are engineered to manage the specific challenges of the storage tank industry.

Handling Long and Large Plates

Our systems are optimized for very long plates and very large diameters, with plate thicknesses typically ranging from 6 mm (0.24 in) to 40 mm (1.57 in).