• 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:

DECENT MACHINERY‘12 Custom Mining Ventilation Fans Pass Full Bv Third-Party Full-Condition Tests For Central Asian Copper Mine Project.

DECENT MACHINERY Welcomes East African Mining Partners for In-depth Mine Fan Cooperation

DECENT MACHINERY Forges Long-Term Strategic Partnership with Leading Southeast Asian Mining Conglomerate

The FBS Series Explosion-Proof Two-Stage Axial Flow Mine Fan is engineered for underground mining operations, ensuring optimal ventilation, energy savings, and dust suppression. Designed for long-distance tunneling and confined-space applications, this high-pressure mine ventilation fan operates in series or independently, allowing customized airflow solutions. Its compact structure maximizes space efficiency, while its quick-assembly system ensures rapid maintenance, minimizing downtime and improving operational reliability.
 

Key Features of the FBS Mine Ventilation Fan

• Explosion-proof construction, ensuring safe operation in methane-rich underground environments.
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• Dual-stage axial flow impellers, delivering superior airflow control and optimized pressure distribution.
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• Flexible operation, allowing single-stage or two-stage series operation to meet varying ventilation needs.
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• Space-saving design, reducing installation footprint in confined underground tunnels.
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• Fast maintenance and disassembly, equipped with quick-connect couplings and a roller track system for rapid part replacement.
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• Automatic dual power supply system, ensuring uninterrupted operation even during power failures.
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• High-pressure airflow output, exceeding standard axial flow fan performance for long-distance ventilation.

Working Principle

The FBS Two-Stage Axial Flow Mine Fan features a dual-stage impeller system, powered by two explosion-proof motors of equal capacity. Both impellers rotate in the same direction, significantly enhancing airflow stability and pressure output. The airflow process consists of:
 

1️⃣ Air Intake – The first-stage impeller accelerates airflow, increasing energy.
2️⃣ Intermediate Guide Vanes – Air is stabilized before reaching the second-stage impeller.
3️⃣ Secondary Air Boost – The second-stage impeller further increases pressure and airflow volume.
4️⃣ Final Air Discharge – The optimized airflow exits, providing efficient ventilation for underground mining applications.

This high-efficiency ventilation design ensures stable air pressure, optimal dust control, methane removal, and improved underground air quality.