• Explosion proof
• Compact
• Built-in muffler
• unique tracking order for each fan. 
• three layer anti-corrossion painting. 
• largest diameter 5meters! 
• Each hub is annealed to remove internal stress.Durable enough. 
• Orthogonal 3D Twisted Blade Technology of Bend and Sweep Combination,Simulated Dune Principle. 
• In line with international standards, 1000: 1.5~2.5, to ensure that the impeller works more safely and efficiently. 

Product-related News:

The FBD Series Explosion-Proof Counter-Rotating Axial Flow Fan is an industrial-grade mine ventilation fan, specially engineered to enhance underground air circulation, optimize energy efficiency, and reduce operational noise. Designed for hazardous mining environments, this high-performance ventilation system ensures maximum safety, superior airflow stability, and reliable gas removal in coal mines, hard rock mines, and tunnel construction sites.
 

Key Features of FBD Series Explosion-Proof Axial Flow Fan

1. 1. Explosion-proof counter-rotating axial flow system, delivering high-efficiency airflow in methane-rich environments.
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3. 2. Dual-stage impeller configuration, improving air pressure balance, velocity stability, and ventilation efficiency.
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5. 3. Noise-reducing axial inlet muffler, utilizing porous-core technology to absorb sound, minimizing operational noise by 10-15dB(A).
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7. 4. Optimized air circulation system, directing airflow along the fan’s rotational axis for consistent air distribution.
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9. 5. Heavy-duty corrosion-resistant casing, ensuring long-term durability in extreme underground conditions.
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11. 6. Compact and easy-to-install design, making it ideal for confined spaces and small-section tunnel applications.
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13. 7. Compatible with various underground ventilation networks, supporting dust extraction, methane control, and hazardous gas dilution.
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Installation and Operating Conditions

1. 1. Designed for coal mine ventilation, shaft ventilation, and long-distance tunnel airflow management.
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3. 2. Explosion-proof structure, compliant with industry safety standards for flammable gas environments.
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5. 3. Lightweight yet durable, ensuring easy transport and installation in underground workspaces.
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7. 4. Built for continuous operation, delivering stable airflow regulation and energy-efficient performance.

The FBD Series Explosion-Proof Counter-Rotating Axial Flow Fan is a cutting-edge underground ventilation solution, offering safe, efficient, and low-noise airflow management for mining, tunneling, and industrial ventilation applications.