Hubei Daming Completes 1,300-Ton Storage Tank Shell Prefabrication Project

Edge preparation and shell rolling are critical processes in storage tank fabrication, directly influencing weld quality, dimensional accuracy and long-term operating reliability. Recently, Hubei Daming completed the prefabrication and delivery of all components for a 1,300-ton storage tank shell project, meeting strict requirements for processing accuracy, forming quality and production consistency.

The project involved multiple steel plate specifications and required precise control of groove dimensions and shell geometry throughout the fabrication process. To ensure stable production quality, Hubei Daming established a dedicated project control plan involving its engineering, production and quality teams before manufacturing began. Key parameters, including groove tolerances and shell curvature requirements, were clearly defined, while inspections were carried out on incoming materials, semi-finished components and completed shell sections to ensure full traceability throughout the process.

For edge preparation, Hubei Daming applied professional edge milling equipment combined with customized fixtures to achieve consistent control of groove angles and root face dimensions. The standardized machining process ensured uniform groove profiles across large volumes of steel plates, providing a reliable foundation for subsequent welding and assembly.

During the shell rolling process, CNC four-roll plate rolling equipment was used to achieve accurate forming results. Rolling parameters were precisely adjusted according to plate specifications, while curved templates and dimensional measurements were applied for real-time verification. Each shell section was inspected for internal diameter and forming accuracy to prevent issues such as straight edges and uneven deformation. All fabricated sections met the required dimensional standards after inspection.

To improve production flow and delivery efficiency, Hubei Daming implemented dedicated storage areas for raw materials, edge-prepared plates and formed shell sections. Components were classified by specification and transferred using specialized lifting tools to protect groove surfaces and finished quality. The standardized handling and identification system simplified material tracking, final inspection and shipment preparation.

The completion of this project reflects Hubei Daming’s experience in large-scale storage tank shell prefabrication, integrating precision machining, forming control, quality inspection and production management. The company will continue to improve standardized fabrication processes and provide reliable processing solutions for industrial storage, chemical and related engineering applications.