Continuous casting in the steel industry: smart monitoring of cooling, coils and cutting equipment

Continuous casting is the step where liquid steel turns into solid form - a process that leaves no room for error. Cooling, rollers and cutting equipment must work perfectly together to prevent cracks, distortions and downtime. This article reveals how smart IoT sensors continuously monitor critical parameters such as temperature, pressure and vibration, and how predictive maintenance ensures maximum reliability and quality. Wondering how sensor technology prevents downtime and reduces production costs?
Continuous casting in the steel industry: smart monitoring of cooling, coils and cutting equipment

In continuous casting, the molten metal is poured into a solid form, rolled and cooled.

This is done (usually) via continuous casting. The molten steel is poured into the top of machines, then cooled and transported in the form of beams or slabs. There is cooling with water here, there are rollers that propel the material, and there are plasma cutters or similar devices that cut the material to length.

Recommended IoT sensors for continuous casting

Continuous casting is a critical step in which molten steel is converted into solid forms such as slabs or beams. The process is fast, thermally intensive and mechanically complex. Any deviation can lead to quality loss, downtime or equipment damage. That's why these IoT sensors are essential:

1. Infrared temperature sensors: For control of solidification process and coolingThe transition from liquid to solid steel requires precision in temperature control.

Monitor sensors:

    • Cooling zones where water cools the steel

    • Solidification front to prevent the steel from solidifying too quickly or too slowly

Incorrect temperature leads to:

    • Cracks or internal stresses

    • Irregular crystal structure

    • Final product rejection

    • Added value: Increases product quality, reduces scrap rate, prevents damage to cutting equipment.

2. Vibration sensors: For detection of vibrations in rollers and transport mechanismsRollers transport the solidified steel through the plant.
Vibration sensors detect:

  • Imbalance due to wearSkewing or contamination

    • Accumulation of material

Vibrations can cause:

    • Mechanical damage
      • Irregular movement of the product
      • Problems when cutting or rolling

    Added value: Prevents downtime, increases uptime, supports predictive maintenance.

    3. Ampere/consumption sensors: for monitoring motors and energy efficiencyVarious motors are used in the continuous casting process to drive rollers, cutting equipment, pumps and conveying mechanisms. These motors are essential for stable and reliable flow of steel. Consumption sensors provide near-real-time insight into their performance.

    Monitoring load and performance

      • Sensors continuously measure motor current and energy consumption.
          • Deviations in consumption may indicate:
            • Mechanical resistance (e.g., contamination, wear)
            • Starting defects such as bearing wear or overheating
            • Imbalance in drive systems

      Preventive maintenance and failure prevention

      By detecting abnormalities early, minor problems can be addressed before they lead to failure.
      This prevents unplanned downtime of conveyor lines or cutting equipment, which directly impacts production.

      Energy management and cost savings

      Continuous visibility into power consumption enables:

        • Identify inefficient motors
          • Prevent energy waste
          • Optimize installations based on actual load
          • This contributes to lower energy costs and sustainability goals.

        Production continuity and quality

        Stable motor operation is essential for:

          • Constant conveying speed
            • Precise cutting operations
            • Preventing vibrations or snags
            • Consumption sensors help ensure this stability.

          4. Pressure/vacuum sensors: For control of cooling water circulation

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          Jeroen Frantzen

          Our specialist

          Jeroen Frantzen

          predictive maintenance | iot sensors
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