Rotary Fan
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Industrial Rotary Fan for Ventilation and Cooling Systems
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What is a Rotary Fan?
A Rotary Fan, also known as a centrifugal air blower or impeller-type fan, is a compact and high-efficiency device designed to move large volumes of air or gas in industrial applications. Unlike axial fans, rotary fans use a rotating impeller to generate centrifugal force, delivering high-pressure airflow with minimal turbulence.
Whether used for dust removal, material conveying, cooling, or combustion air supply, rotary fans provide consistent and energy-efficient air movement across a wide range of industries.
How It Works
The rotary fan consists of a motor-driven impeller enclosed in a spiral housing. As the impeller rotates, air enters through the center (inlet), accelerates outward due to centrifugal force, and exits the outlet at high velocity. This design allows for:
•Higher static pressure than axial fans
•Stable airflow across varied loads
•Compact size for installation in tight spaces
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Core Advantages
· High Static Pressure Output: Perfect for systems requiring airflow through filters, ducts, or piping.
· Stable & Continuous Air Delivery: Ideal for applications needing non-pulsating flow like drying, aeration, and dust collection.
· Low Noise & Vibration: Designed with dynamic balancing and sound insulation for quieter operation.
· Energy Efficient: Optimized blade design and direct-coupled motors reduce energy losses.
· Durable Build for Harsh Conditions: Constructed with corrosion-resistant materials and sealed bearings for long service life.
Technical Specifications
| Specification | Range |
| Flow Rate | 0.5 – 50 m³/min |
| Pressure | 5 – 60 kPa |
| Motor Power | 0.75 – 75 kW |
| Inlet/Outlet Diameter | DN50 – DN300 |
| Material | Cast iron, Carbon steel, Stainless steel |
| Mounting | Horizontal / Vertical |
| Speed Control | Fixed or VFD-enabled |
Common Applications of Rotary Fans
• Pneumatic Conveying: Provides air power to move powder, pellets, and granules in conveying pipelines.
• Dust Collection Systems: Suction or discharge fan for baghouses, cyclones, or air filters.
• Combustion Air Supply: Delivers combustion air to boilers, kilns, and burners in power and cement plants.
• Cooling & Drying: Used in textile, paper, and plastic processing lines for rapid air drying and heat removal.
• Aquaculture Aeration: Delivers high-pressure air to diffusers and biofilters in fish farming systems.
• Packaging & Printing: Used in vacuum hold-down, air knife drying, and sheet separation applications.
Rotary Fan vs Other Fan Types
| Fan Type | Static Pressure | Flow Rate | Noise Level | Size |
| Rotary Fan | High | Medium | Low | Compact |
| Axial Fan | Low | High | Medium | Large |
| Roots Blower | High | Low | Higher | Medium |
Why Choose Our Rotary Fans?
• Customized Designs for your system pressure and airflow requirements
• Multiple Drive Options: Belt drive, direct drive, or VFD-compatible
• Low-Noise Configurations with silencers and anti-vibration mounts
• Export-Ready Models with CE, ISO, and optional UL standards
• On-site Installation Support and long-term technical assistance
Request a Quote Today
Our rotary fans are trusted by clients in the cement, chemical, food, aquaculture, recycling, and power industries. Whether you're upgrading an existing system or designing a new one, we can help deliver the perfect air movement solution.