The offshore sector faces unprecedented demands for scale, volume, and structural integrity. As monopiles, transition pieces, and jacket foundations grow larger, requiring steel plates over 100 mm thick and up to 4.5 m wide, fabrication yards must address early-stage manufacturing bottlenecks.
At IDESA’s facility in Avilés, Spain, manual adjustments, material springback, and cycle times typical of the rolling phase impacted downstream fitting and welding. To overcome these constraints, IDESA integrated Davi’s MCB 4-roll plate rolling machine into its production line.
Addressing Bottlenecks in Offshore Fabrication
Heavy offshore fabrication requires geometric tolerances for alignment during longseam and circumferential welding. Deviations in plate curvature can lead to costly rework and downtime.
Implementing the Davi MCB system targeted several areas:
- Cycle time reduction: Precise roll positioning minimized handling time per rolled plate, improving material flow.
- Tolerance control: Davi’s digital architecture and roll sequencing compensated for material variability and springback, preventing out-of-roundness.
- Process integration: The plate roll aligned with upstream plate preparation and downstream welding, supporting continuous production for large-scale series.
- Operator reliance: Control systems reduced adjustments, maintaining tolerances regardless of operator experience.
Engineering Foundations: The MCB 4-Roll System Architecture
Davi’s MCB technology addresses heavy plate deformation through specific mechanical and digital innovations:
- Planetary Guides Technology: Unlike linear guides, Davi’s side rolls move on a pivoting mechanism, reducing top-roll deflection and applying force near the clamping point.
- Patented Servo-Tronic Parallelism: Dual hydraulic circuits maintain oil pressure and mass flow to both roll ends, ensuring synchronization even if electronic feedback is interrupted.
- Compact Frame and Short Flat Ends: High-rigidity intra-frame construction withstands structural stresses during pre-bending, minimizing material waste.
- Pendular Gearboxes: Motorized top and bottom rolls feature pendular gear arrangements, allowing stress-free roll tilting for cone and monopile taper forming.
Measurable Gains for Next-Generation Projects
The integration enabled IDESA to increase throughput, reduce rework, and meet tolerance criteria for heavy offshore foundations and pressure vessels. As offshore commitments shift toward deeper waters and larger turbines, advanced plate rolling systems provide the structural precision and volume capacity necessary for modern yards.
Watch the video case study at Davi’s case study on IDESA
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Original Story at www.offshorewind.biz