In the steel industry, particularly in continuously operating steel galvanizing lines, selecting a technical partner is not simply a matter of choosing a contractor that supplies equipment. It is a decision directly related to line stability, the risk of line stoppages, and the long-term operational efficiency of the entire plant. For this reason, many steel enterprises tend to trust and work only with foreign contractors – partners believed to have a deep understanding of the system and experience in implementing complex projects. However, ESEC is one of the domestic engineering companies that has gradually demonstrated its capability, not only in providing automation solutions but also in mastering and implementing comprehensive upgrades for steel galvanizing lines.
ESEC’s strength does not lie in a single device or technology, but in its system-oriented approach to projects. Instead of addressing individual components separately, ESEC focuses on understanding the entire galvanizing line – from drive systems and tension control units to the integration between the drive system and the existing PLC system. This approach is clearly demonstrated through:
- Implementing comprehensive upgrades from hardware to software, helping the system operate stably and ensuring production operation time.
- Applying multi-axis tension control functions to maintain stable tension in critical sections such as the furnace, zinc pot, coater, and tension reel.
- Applying advanced control technologies of SINAMICS drives into the system, such as FlyRestart for windmilling applications, closed-loop vector motor control, and Technology Control for bridle control functions with “Speed with Torque Compensation” technology, enabling the bridle to maintain stable tension control.
- Upgrading the T400 control functions in SIMOVERT to the DCC platform of SINAMICS, enabling stable and precise control of payoff and recoiling at high speeds for the Entry and Exit sections, preventing coil collapse and oval deformation.
ESEC’s capability is clearly demonstrated through the galvanizing line upgrade project for NS BlueScope Vietnam – one of the leading steel manufacturers with strict technical requirements and operational standards.
The project was implemented within a very short shutdown period of approximately 5–7 days for each section of the galvanizing line and was deeply integrated into the existing control system. After the upgrade, the line operated stably, tension was precisely controlled, energy efficiency was significantly improved, and the plant became more proactive in maintenance and operation.
Explore the Case Study: ESEC Upgrading the Galvanizing Line at NS BlueScope Vietnam
ESEC does not aim to be a short-term implementation contractor but positions itself as a long-term technical partner accompanying steel plants in Vietnam. ESEC’s capability has been proven through many practical projects in the steel industry, enabling the company to collaborate with steel plants in implementing upgrade and operational optimization programs toward sustainable efficiency in the future.
BD & MKT
