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Meeting the stringent technical standards of Hoa Phat Group, TOMECO’s high-temperature fans have become a critical component in the large-scale color-coated steel production line. Discover how TOMECO addresses the challenges of high-temperature resistance, sealing, and vibration control to deliver optimal operational efficiency for one of the most advanced steel sheet plants in Vietnam today.
1. Project Overview
The Hoa Phat Color-Coated Steel Plant, part of Hoa Phat Group, is one of the key projects in Vietnam’s steel industry, featuring one of the most advanced production lines imported from Europe. With an annual capacity of hundreds of thousands of tons, the manufacturing process demands absolute precision and high operational stability from all auxiliary equipment.
Within the galvanizing and color-coating line, the annealing furnace and drying chambers are critical sections. Here, industrial fans play a vital role in circulating hot air and maintaining stable temperatures to ensure surface quality. TOMECO is proud to have been selected as the designer and manufacturer of customized high-pressure, high-temperature fan systems, contributing to the plant’s long-term, reliable operation.
2. Technical Challenges at Hoa Phat Steel Sheet Plant
Color-coated steel production is a harsh industrial process that presents significant challenges for industrial fan systems:
Extremely high operating temperatures: Fans must operate continuously in environments ranging from 250°C to over 500°C. Any mistake in material selection can result in blade deformation or bearing seizure.
Absolute sealing requirements: Furnace gases are often protective or combustion gases. Leakage not only causes energy loss but also affects product quality and workplace safety.
24/7 continuous operation: Unplanned fan shutdowns can damage entire production batches and lead to severe economic losses.
Precise pressure control: Airflow and pressure must be accurately regulated to ensure uniform drying and strong coating adhesion.
3. TOMECO’s Customized Technical Solutions
Based on the specific operating conditions at Hoa Phat, TOMECO’s R&D team implemented a fully customized high-temperature fan solution.
3.1. Specialized High-Temperature Material Selection
TOMECO utilizes premium heat-resistant alloy steels with excellent oxidation resistance and mechanical strength retention at elevated temperatures. Fan blades are manufactured using precision CNC cutting and automated welding technology, ensuring structural stability and resistance to thermal stress deformation.
3.2. Bearing Cooling and Protection System
To protect bearings and motors from direct heat exposure:
Cooling discs: Aluminum heat-dissipation discs are integrated on the fan shaft to block heat transfer from the impeller to the bearings.
Oil-bath or water-cooled bearing housings: Depending on the installation position, bearing systems are designed with large-capacity oil reservoirs or combined with circulating water-cooling systems, keeping bearings within safe operating temperature ranges.
Actual installation of TOMECO high-temperature fans at Hoa Phat color-coating line.
3.3. Advanced Sealing Solutions
High-temperature fans supplied to Hoa Phat are equipped with specialized shaft sealing systems, including heat-resistant packing seals or mechanical seals. This design completely prevents hot gas leakage to the external environment and blocks outside air ingress into the furnace, avoiding oxidation of the steel surface.
3.4. Dynamic Balancing and Vibration Control
All fans undergo dynamic balancing on digital balancing machines in compliance with ISO 1940 standards. This ensures smooth operation, minimizes vibration transmission to furnace structures, and significantly extends the service life of the entire mechanical system.
4. Benefits Delivered to the Customer
After commissioning at the Hoa Phat Color-Coated Steel Plant, TOMECO’s solution has demonstrated outstanding performance:
Consistent product quality: Stable furnace temperatures ensure excellent surface gloss and uniform coating thickness, meeting Hoa Phat’s export quality standards.
Reduced operating costs: Optimized aerodynamic design delivers 10–15% energy savings compared to conventional fans of similar capacity.
Exceptional durability: The fan systems operate reliably across multiple maintenance cycles without major failures, enabling continuous high-output production.
Rapid technical support: As a domestic manufacturer, TOMECO provides faster technical assistance and spare parts supply compared to imported equipment.
Watch the video showcasing the operation of TOMECO high-temperature fans at Hoa Phat Color-Coated Steel Plant.
5.Conclusion
The high-temperature fan project at the Hoa Phat Color-Coated Steel Plant marks a milestone in TOMECO’s “engineered-to-order” capability. We do not merely supply fans – we deliver comprehensive technical solutions that help customers optimize their production processes.
The success of the Hoa Phat project once again validates TOMECO’s strategic direction of focusing on premium quality, advanced technology, and deep understanding of the demanding requirements of heavy industrial enterprises in Vietnam.