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TOMECO introduces aluminum-casing explosion-proof fans – a safe, lightweight, corrosion-resistant ventilation solution designed for environments containing flammable gases, solvent vapors, and combustible dust. High performance. International standards compliant.
1. Background: When “Safety” Is No Longer an Option but a Mandatory Requirement
As manufacturing plants for paint, chemicals, metallurgy, and oil & gas storage continue to expand and modernize, fire and explosion safety has become one of the highest priorities. A minor electrical spark, overheated equipment, or even leakage current can lead to catastrophic consequences.
In environments containing solvent vapors, gas, metal dust, or flammable chemicals, the selection of appropriate electromechanical equipment directly affects not only production efficiency but also human safety and corporate assets.
Recognizing this critical demand, TOMECO – a leading industrial fan manufacturer in Vietnam – has researched and introduced the aluminum-casing explosion-proof fan, delivering a comprehensive solution that simultaneously ensures performance, durability, and absolute safety in harsh industrial conditions.
2. Technical Challenges: Balancing Safety and Energy Efficiency
An explosion-proof industrial fan system is not simply a conventional fan equipped with an explosion-proof motor. TOMECO identified that the fan casing—directly exposed to gas, heat, and vibration—is the most critical component requiring redesign.
Key engineering challenges included:
How to minimize spark risks caused by friction between impeller and casing in flammable environments?
How to ensure effective heat dissipation for explosion-proof motors that typically operate at higher temperatures?
How to maintain mechanical strength while reducing overall weight to simplify installation and maintenance?
These challenges led TOMECO to transition from traditional steel housings to high-grade aluminum alloy casings, a choice that reflects both advanced engineering and innovative safety design.
3. TOMECO Solution: Aluminum-Casing Explosion-Proof Fans – Optimized Down to Every Detail
3.1. Aluminum Casing Structure – Lightweight, Durable, and Thermally Efficient
The fan casing is manufactured from high-pressure die-cast aluminum alloy, offering exceptional rigidity with only one-third the weight of carbon steel.
Superior thermal conductivity enables rapid heat dissipation, preventing heat accumulation—one of the most common causes of explosions in enclosed environments.
Anti-corrosion electrostatic epoxy coating protects the fan against chemical vapors and marine environments.
3.2. International-Standard Explosion-Proof Motor
Equipped with Ex d IIB T4 explosion-proof motors or higher, compliant with Vietnamese regulations and IECEx international standards.
All wiring systems, terminal boxes, and drive shafts are fully isolated, ensuring zero spark emission or electrical discharge to the external environment.
3.3. Precision Mechanical Design & Advanced Dynamic Balancing
TOMECO applies two-plane dynamic balancing technology using Schenck (Germany) balancing machines, achieving vibration levels below 4.5 mm/s, exceptionally low for large industrial fans.
Optimized shaft–bearing–impeller assembly enables 24/7 continuous operation in high-temperature, humid, or corrosive environments.
4. Practical Applications: From Paint Plants to Chemical Warehouses
Case 1: Industrial Paint Factory – Bac Ninh Province
In a 20,000 m² industrial paint manufacturing facility, solvent mixing and drying areas required an absolutely explosion-proof ventilation system.
TOMECO supplied 7.5 kW aluminum-casing centrifugal explosion-proof fans paired with Ex d IIB T4 motors.
Results after 12 months of operation:
Average temperature in mixing chambers reduced by 30%.
No electrical faults, friction issues, or spark generation detected during periodic inspections.
Approximately 12% energy savings compared to traditional steel-casing fans, thanks to improved aerodynamic efficiency.
Case 2: Chemical Storage Warehouse – Central Vietnam
In a warehouse storing methanol and acetone, aluminum-casing explosion-proof fans were installed at low-level exhaust points to prevent flammable gas accumulation.
After more than two years of continuous operation, the fans maintain low noise levels, with no oxidation or deformation of the aluminum casing—demonstrating outstanding corrosion resistance.
5. Delivered Value: Not Just a Product, but a Total Safety Solution
See also: Common Types of Explosion-Proof Fans and Essential Safety Standards
TOMECO is not merely an industrial fan manufacturer but a provider of integrated explosion-proof ventilation solutions, including:
Explosion-proof ventilation system design consulting in compliance with NFPA and ATEX standards.
Gas concentration measurement and precise airflow–pressure calculations tailored to each production space.
Comprehensive warranty and maintenance services throughout the equipment lifecycle.
From an economic perspective, although aluminum-casing explosion-proof fans may require 10–15% higher initial investment, they enable businesses to:
Minimize explosion risks and prevent losses worth millions of dollars.
Extend equipment lifespan to 10–12 years.
Fully comply with ISO, ATEX, and fire safety regulations, supporting export requirements and international inspections.
6. Conclusion: TOMECO – Elevating Industrial Safety Standards
The introduction of aluminum-casing explosion-proof fans demonstrates TOMECO’s strong commitment to elevating Vietnamese industrial safety standards to international levels.
With over 30 years of experience and thousands of successfully delivered projects, TOMECO continues to affirm its pioneering position—where every ventilation solution is engineered based on a deep understanding of real-world industrial environments.
“Safety is not merely a technical requirement—it is the foundation of sustainable industrial production.”
— TOMECO Engineering Team