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: From hours of replanning to minutes: How AI-accelerated scheduling transforms rolling mill operations

In the high-stakes environment of modern metals production, operational agility is no longer a luxury – it is a necessity. We know that a single delayed slab can disrupt hours of carefully optimized rolling mill planning. What begins as an efficient production schedule can quickly turn into manual firefighting: planners scramble to adjust sequences, hot charging opportunities are lost, energy consumption spikes, and delivery commitments come under pressure.

With PSImetals Release 5.30, we are addressing this challenge head-on. By integrating Industrial AI directly into our scheduling logic, we are enabling mills to move from reactive damage control to proactive, high-frequency optimization.

Why hot charging remains one of the industry’s toughest planning challenges

Hot charging – transferring slabs directly from the continuous caster to the rolling mill while retaining heat – is one of the most effective ways to reduce reheating energy, lower production costs, and cut CO2 emissions. Yet, maintaining high hot charging rates over a planning horizon of several days remains exceptionally tough.

Production planners must simultaneously consider casting and rolling capabilities, technical transitions, material grades and delivery commitments. Traditionally, midterm scheduling systems have relied on coarse planning models that calculate in shifts rather than hours. This lack of precision often forces a compromise: either accept simplified schedules or invest significant manual effort whenever conditions change.

Introducing AI-accelerated midterm scheduling

With PSImetals Release 5.30, we have taken a significant step toward solving this dilemma. The latest enhancements to the Line Scheduler combine advanced optimization techniques with Industrial AI to deliver high-precision scheduling at a practical speed.

  • Hourly precision across the entire planning horizon: The enhanced scheduler operates on an hourly time grid, allowing planners to create realistic schedules that accurately reflect production conditions over multiple days.
  • Better schedules through multi-seed optimization: By launching multiple optimization paths simultaneously, the system identifies higher-quality schedule solutions and avoids getting trapped in suboptimal results. 

How Industrial AI accelerates optimization

High-precision scheduling is computationally intensive. The solver may need to evaluate millions of potential scheduling moves and possible modifications. 

This is where Industrial AI changes the game. PSImetals Line Scheduler 5.30 incorporates a specialized Machine Learning (ML) engine directly into the solver.

The AI acts as a guide, helping the optimizer focus on the most promising opportunities first. The benefits are substantial:

  • Up to 10x faster convergence rates.
  • Approximately 5% higher schedule quality.
  • Faster reaction to production disruptions.

What happens when disruption strikes?

Imagine a slab is delayed several hours due to an unexpected caster interruption. Traditionally, planners would spend hours manually rebuilding the rolling schedule, often losing valuable hot charging opportunities in the process. 

With PSImetals, the planner simply re-calculates the schedule. The AI-accelerated optimizer automatically evaluates the new reality and presents an optimized sequence in minutes. Instead of rebuilding plans, planners can focus on making informed operational decisions. 

Built for industrial environments: secure, on-premise AI

For metals producers, production data is critical intellectual property. That is why the ML models in Line Scheduler 5.30 are developed, trained and deployed entirely within the customer’s environment. No production data ever leaves the plant.  

The release includes dedicated workflows for data collection, model training and performance assessment, ensuring you maintain full control over your operational data.  

The dedicated Schedule Analysis configurable dashboard provides immediate feedback on hot charging percentages, and midterm rolling sequence details (e.g. scheduled widths, thicknesses, and steel grades).

Real-time visibility for better decisions

Optimization alone is not enough – planners need immediate insight. The embedded BI dashboard provides real-time visibility into key operational indicators.  

Through clear visual analytics, planners can instantly see the percentage of hot slabs scheduled in a sequence as well as monitor scheduled slabs, including configurable details such as the corresponding waiting time between casting and rolling for each hot slab. 

Turning AI potential into measurable results

Every mill is different. That is why we invite you to assess the impact of PSImetals Line Scheduler 5.30 using your own historical plant data through our Proof of value Sandbox program

Instead of a theoretical software pitch, we will demonstrate measurable improvements in schedule quality, planning agility and energy efficiency before you make an investment decision. Here is how it works: 

  1. Provide historical data: Share a snapshot of your plant’s historical production schedules and constraints.
  2. We run the sandbox: We will feed this data into our Release 5.30 Line Scheduler sandbox.
  3. See the results: We will show you the exact performance improvements, convergence speeds, and hot charging gains you could have achieved. 

 

Ready to move from hours of replanning to minutes? Contact your PSI representative today to schedule your Proof of Value assessment! 

Your contact

Robert Jäger Team leader, Product Manager, PSI Metals Belgium

After several years implementing PSImetals Planning software solutions at multiple plants, Robert Jäger spent the following 10 years in consultancy and technical sales support role, helping in the requirements analysis and the design of planning solution architectures tailored to specific metals supply chains. As product manager and building upon his supply chain expertise, Robert is now driving the PSImetals Planning product roadmap with a vision centered on smartness, adaptiveness, collaboration and sustainability. Robert’s interests include karate, music, chess and all aspects of strategic systems thinking.

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