Cold rolling is the precision dimension transformation stage that converts hot-rolled strips into high-quality, market-ready steel products. Constructed with single mill stand or tandem cold mills, this process significantly reduces thickness, enhances surface finish, and imparts superior mechanical properties—such as strength, elongation, hardness, and dimensional accuracy. It is essential for producing the thin, uniform, and high-performance strips required by advanced industries like automotive manufacturing, home appliance production, and specialized construction. As the final shaping and strengthening step, cold rolling directly defines the functional quality, appearance, and value of the finished steel.

To achieve the exact standards required for premium cold-rolled steel, a sophisticated and high-precision control system is essential. While our expertise extends across the entire production chain, Metals-Tech provides comprehensive electrics and automation solutions specifically for cold rolling mills, covering the complete spectrum from Level 0 field instrumentation to Level 2 process control, private cloud, single plant digital system and integrated digital platform for the whole production complex. Our advanced mathematical models, which are intrinsically linked to deep process know-how, play a decisive role. They enable unparalleled control over parameters such as rolling force, tension, flatness, and surface quality etc., ensuring the consistent production of high-strength, dimensionally precise, and flawlessly finished strips.

At the same time, highly automated electrical systems, coupled with sophisticated process control technologies and digital systems, provide a perfect technical foundation for reducing operator quantity, enabling intelligent maintenance, enhancing the performance of existing equipment, improving production yield, lowering production costs, facilitating new product development, and supporting mass production while at the same time meeting market demands for small batches and diversified specifications.

Our objective is to provide you with an integrated intelligent system that combines basic automation, process simulation, real-time control, algorithms of optimization, and AI self-learning capabilities.

Scope of Supply

Level 0

  • Power Distribution
  • Motors
  • Drive Systems
  • Motor Control Center (MCC)
  • Process Instruments (Thickness Gauge, Flatness Gauge, Tensiometer, Laser Speed Measurement, etc.)
  • Field Sensors

Computer Systems

  • Private Cloud
  • Or Conventional Computer Configuration

Level 1 / Level 2 Hardware

Main / Auxiliary Pulpit or Centralized Control Pulpits

IT Components

Level 1 Basic Automation

Basic Automation

  • Mill Master Control
  • Sequence Control (Automatic Coil Uploading/Unloading, Automatic Threading, Automatic Roll Change, etc.)
  • Coil Transportation (Coil Cars, Pallets, Shuttle Cars, etc.)
  • Material Tracking (Coil Tracking / Strip Head & Tail Tracking)
  • Media Control
  • Peripheral Device Interfaces

Technological Control

  • Drive Control
  • Mill Stand Control
  • Automatic Gauge Control (AGC)
    • Target Thickness Control
    • Feedforward Control
    • Feedback Control
    • Mass Flow Control
    • Rolling Efficiency Control
    • Eccentricity Compensation
    • Mandrel Eccentricity Compensation
    • Off-gauge Optimization
  • Automatic Flatness Control (AFC)
    • Stand Tilting Control
    • Roll Bending Control
    • Multi-Zone Cooling
    • PGM Compensation
    • Dynamic Target Curve Compensation
  • Elongation Control (Skin Pass Mode)
  • Fly Gauge Change Control (Tandem Cold Mills)

Human-Machine Interface (HMI)

  • Plant Overview
  • Main Page of Rolling Operation
  • Pages of Auxiliary Controls
  • Drive Control
  • Media Control
  • System Monitoring, Diagnostics, and Alarm

Level 2 Process Automation

  • Production Management
  • Material Tracking
  • Reports
    • Rolled Coil Result Reports
    • Production Reports (Shift / Daily / Weekly / Designated Period)
    • Automatic Recap of Incoming Material Data
    • Report Inquiry and Statistics
  • Pass Schedule Setup System
    • Pass Schedule Distribution Setup
      • Roll Gap Model
      • Roll Flattening Model
      • Material Model
      • Motor Torque, Utilization, and Power
      • Strip Temperature Model
    • Profile and Flatness Setup
      • Work Roll Temperature Model
      • Material Flow Model
      • Roll Deformation Model
      • Roll Gap Contour Model
    • Dummy Stand Strategy (Tandem Mills)
  • Automatic Roll Arrangement Model (for 20-Hi, 18-Hi Mills)
  • Strip Temperature Control Model (for HiB Steel)
  • Roll Management
  • Downtime Management
  • Logs
  • Level 1 / MES System Interface

Integration Test

Simulation test before shipment to ensure plug-and-play on site, customer training.

Single Plant Digital System

  • Analysis and Visualization of Plant and Product Performance
  • Condition Monitoring and Diagnosis of Equipment, Product Quality, and Energy Consumption
  • Recommendations and Optimization of Operating Conditions for Enhanced Performance
  • New Product Development Support
  • Intelligent Production Scheduling (Tandem Cold Mills)

Typical Production Curves