Description
Industrial Axial Flow Fans (Fixed & Movable)
Engineered for versatile industrial ventilation. Available in the standard LWAF40 fixed configuration and the highly portable LWAF40M movable version. Equipped with heavy-duty steel blades and pure copper motors to deliver massive, reliable airflow across demanding environments.
Key Technical Features
Built for rigorous industrial safety, versatile installation, and reliable air delivery.
Thickened Steel Blades
Heavy-duty, precision-balanced steel blades deliver superior aerodynamics and exceptional running stability.
Pure Copper Motor
Thickened copper-core coils provide strong power, high efficiency, and low temperature rise for extended life.
Two Configurations
Choose the LWAF40 for permanent duct/wall mounting, or the LWAF40M with casters for mobile ventilation.
Powerful Airflow
Engineered to rapidly clear out heat, smoke, and stale air, improving comfort across expansive work zones.
Technical Specifications
LWAF40 Series dimensional parameters and performance data.
Powerful Airflow Performance
Whether utilized for exhausting process heat or supplying fresh oxygen, the LWAF40 series excels in massive volume delivery. The aerodynamically designed axial fan blades are calibrated to generate a powerful, concentrated air stream.
This rapid air acceleration is crucial for quickly clearing out smoke, excessive heat, airborne dust, and stuffy air, significantly improving the overall ventilation efficiency and comfort of your expansive facility.
- High-volume exhaust — Rapidly clears heat and stale air
- Concentrated air stream — Pushes air deep into expansive work zones
- Improves facility comfort — Ideal for demanding industrial environments
Pure Copper Core Motor
At the heart of the LWAF40 series is a high-power industrial motor. Equipped with thickened pure copper-core coils, the motor provides superior electrical conductivity and highly efficient energy transfer.
This optimized electrical design delivers strong power while keeping the temperature rise exceptionally low. The result is a highly reliable drive system that ensures durable performance and a long service life, even under continuous heavy-duty use.
- Thickened copper-core coils — Maximizes electrical efficiency
- Low temperature rise — Protects the motor during continuous duty
- Durable performance — Guarantees a long operational service life
Thickened Steel Fan Blades
The impeller is crafted from heavy-duty, high-strength steel. Each blade assembly undergoes strict dynamic testing to ensure it is precision-balanced before it leaves the factory.
This superior aerodynamic profile allows the fan to deliver powerful airflow while maintaining structural integrity. The combination of rigid design and high-strength material guarantees exceptional running stability over long operational cycles.
- Heavy-duty steel blades — High strength and durability
- Precision-balanced — Ensures stable operation without severe vibration
- Superior aerodynamics — Maximizes powerful volumetric airflow
Versatile Configurations: Fixed & Movable
Industrial layouts are complex, and ventilation equipment must be adaptable. This series is offered in two distinct configurations to match your exact operational needs.
Choose the LWAF40 Fixed Type for seamless integration into existing pipeline systems or permanent structural mounting. Opt for the LWAF40M Movable Type, which integrates a sturdy floor stand and universal casters, allowing a single person to transport the heavy-duty fan to any temporary workstation.
- LWAF40 (Fixed) — Ideal for duct inline or permanent wall mounting
- LWAF40M (Movable) — Features universal casters for effortless transport
- Highly Adaptable — Meets both permanent and temporary cooling needs
Wide Industrial Applications
A versatile solution for high-volume air delivery and exhaust in diverse industrial areas.
Factory Workshops
Provides powerful exhaust for production lines, rapidly clearing out manufacturing heat and fumes.
Warehouses & Logistics
Ensures massive cross-ventilation to prevent heat buildup and moisture in expansive storage spaces.
Construction Sites
The movable LWAF40M is ideal for drying paint, clearing dust, or supplying fresh air to active builds.
Underground Spaces
Efficiently clears exhaust emissions and stagnant, humid air from enclosed lower-level areas.
Equipment Cooling
Delivers a high-velocity, localized air stream to rapidly cool down overheating heavy machinery.
Industrial Plants
Integrates seamlessly into existing ductwork to extract heavy industrial fumes and processing heat.
LONGWELL — Trusted Industrial Fan Manufacturer Since 1990
Founded in 1990 in Yuyao, Ningbo, LONGWELL has grown into a vertically integrated ventilation technology group. We engineer standard and explosion-proof fan and motor systems with 4,000 m²+ of manufacturing floor, dedicated aerodynamics labs, and a global export network.
Every LONGWELL fan is built on automated lines, featuring computer-balanced impellers and 100% run-testing before shipment. We are certified to ISO 9001:2015 and ISO 14001, ensuring the highest standards of safety and reliability for hazardous and industrial applications.
Production & Quality Control
Strict quality control, automated assembly, and robust packaging ensure your fans arrive ready for action.


Global Market Presence
LONGWELL exhaust fans are the preferred choice for EPC contractors and industrial clients worldwide.
Trusted by Leading Brands
We supply reliable industrial ventilation solutions to top-tier global manufacturers.
Professional & Certified
Our products meet stringent international safety, quality, and performance standards.
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View Product →Frequently Asked Questions
Quick answers about the LWAF40 & LWAF40M Axial Fans.
What is the difference between the LWAF40 and LWAF40M models?
The LWAF40 is designed for fixed installations, such as integrating into ductwork or mounting permanently on structures. The LWAF40M ('M' for Movable) features a sturdy floor stand equipped with universal casters, allowing for easy, temporary portable ventilation across different work areas.
What material are the fan blades made of?
Both models utilize thickened steel fan blades. These heavy-duty blades are precision-balanced to deliver superior aerodynamics, structural integrity, and exceptional running stability under high-pressure conditions.
Why does this fan use a pure copper core motor?
A pure copper core motor provides significantly better electrical conductivity and heat dissipation compared to aluminum alternatives. This ensures strong power output, high efficiency, and a low temperature rise, guaranteeing durable performance over a long service life.
Are these fans suitable for harsh industrial environments?
Yes. The robust carbon steel casing and heavy-duty steel blades are specifically engineered to withstand the rigorous demands of factory workshops, construction sites, and heavy industrial plants.
Need a Quote or Custom Specifications?
Tell us your airflow, static pressure, and installation requirements — our engineers will size the right LWAF40 or LWAF40M model and provide a quote within 1 business day.





















