The steel rolling mill line is the backbone of modern metalworking, transforming raw steel into precise shapes like sheets, bars, and coils. This article delves into the intricacies of rolling mill technology, highlighting critical equipment, process flows, and innovations from industry leaders like HANI TECH.
1. What Is a Steel Rolling Mill Line?
A steel rolling mill line comprises a series of machines that reduce steel thickness or alter cross-sections through controlled compression. The process enhances mechanical properties while achieving dimensional accuracy. Key stages include:
- Heating: Reheating furnaces bring billets to 1,100–1,300°C for plasticity.
- Roughing: Initial reduction via roughing mills.
- Finishing: Precision shaping in tandem or reversing mills.
- Cooling & Coiling: Controlled cooling on run-out tables before coiling.
2. Core Components of a Rolling Mill Line
HANI TECH’s rolling mill rolls and auxiliary systems ensure high throughput. Essential equipment includes:
| Parameter | Specification | Unit |
|---|---|---|
| Max. Rolling Speed | 25 | m/s |
| Work Roll Diameter | 600–800 | mm |
| Backup Roll Diameter | 1,200–1,500 | mm |
| Rolling Force | 20,000–45,000 | kN |
| Motor Power | 5,000–10,000 | kW |
| Annual Capacity | 1–5 | Million Tons |
| Thickness Tolerance | ±0.05–0.2 | mm |
| Width Tolerance | ±1–3 | mm |
3. Innovations by HANI TECH
HANI TECH’s hot rolling mills integrate automation for superior yield. Features include:
- Hydraulic AGC (Automatic Gauge Control): Maintains thickness within ±0.02mm.
- Predictive Maintenance: IoT sensors reduce downtime by 30%.
- Energy Recovery: Regenerative systems cut power consumption by 15%.
4. Rolling Mill Line Applications
From construction rebars to automotive sheets, steel rolling mill lines serve diverse sectors. HANI TECH’s melting furnaces ensure high-quality feedstock for rolling.
5. Future Trends
Advancements like AI-driven process optimization and green hydrogen heating are reshaping steel rolling mill operations. HANI TECH leads with eco-friendly designs compliant with ISO 14001.
For customized steel rolling mill line solutions, explore HANI TECH’s engineering services.
