A data-driven approach for strip width offset reduction

The digital solution (hardware + software) optimizes side trimming by detecting geometric deviations and dynamically adjusting strip positioning relative to the rotary knives. 

A data‑driven model determines the optimal width offset that the hot strip mill (HSM) must apply to achieve the target PL/TCM final width, thereby minimizing trim losses while ensuring compliance with width specifications.

Customer challenges addressed

  • Minimized scrap formation at the side trimmer
  • A systematic approach to define width offsets
  • Efficient resource utilization
  • Streamlined side trimming process
  • Sustainable and environmentally friendly production

Key features

  • Cost reduction through optimization of excessive scrap generation, allowing the producer to maximize the value extracted from raw materials
  • Dynamic trimming: Improved operational efficiency of the side‑trimming process
  • Reduced scrap contributes to sustainability and environmental goals
  • Interconnectivity between production units
  • Stand-alone integrated solution can be easily integrated into existing lines
  • Data-driven approach

Highlights

  • Latest solution

    Left seam = right seam — symmetry by design

    SMS group’s latest solution positions a high‑precision optical sensor directly at the side trimmer, ensuring  centering exactly at the cutting point relative to the rotary knives. The outcome is consistently symmetrical seams and repeatable quality.
    This optimized setup enables tighter control of strip positioning, supports a safe reduction of entry width, and allows trimming closer to the strip edge. As a result, excess material is eliminated, scrap rates are significantly reduced, and overall yield increases.

  • Traditional configuration

    Left seam ≠ right seam

    In traditional configurations, the CPC sensor is placed near the CPC roll - far upstream from the rotary knife. This often leads to uneven seams, as the strip centering occurs too early in the process, missing the critical point of alignment. However, for an optimal cut, the strip must be perfectly centered at the rotary knife itself. That's where SMS group's innovation comes in.

  • Data-driven optimization

    Smart width‑offset control powered by data

    SMS group’s intelligent predictive model calculates the exact, product‑specific width offset required for PL/TCM entry coils. By continuously evaluating coil geometry, material characteristics and historical process performance, the model provides precise offset recommendations to the hot strip mill. This leads to more accurate entry widths, reduces the need for excessive trimming, and significantly lowers scrap generation. The result is a more consistent process, improved yield, and fully data‑driven width accuracy across the production chain.

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