Description
Low-Noise Axial Flow Fan With Plastic-sealed Motor
A highly mobile industrial ventilation solution engineered with a protective plastic-sealed motor and precision aluminum blades. Delivers powerful, adjustable air circulation specifically tailored for workshops, warehouses, and confined work spaces.
Key Technical Features
Engineered for heavy-duty portability, low-noise efficiency, and precise airflow targeting.
Aluminum Blades
Thickened, dynamically balanced aluminum alloy blades prevent deformation and ensure rust-proof durability.
Sealed Copper Motor
High-efficiency copper coils enclosed in a plastic-sealed housing for reduced vibration and protected, low-temperature operation.
130° Adjustable
Turn side knobs to lock the fan's tilt angle up to 130°, directing cooling airflow exactly where it's needed.
Carry Handle
Equipped with a sturdy, user-friendly top handle for effortless transport across active work sites.
Technical Specifications
LWSFE Series dimensional parameters and performance data.
Dimensions (mm)
| Model | Φ2 (Outer Frame) | Φ1 (Inner Frame) | Φ (Impeller Dia) | L1 (Depth) |
|---|---|---|---|---|
| LWSFE-2A | 255 | 233 | 210 | 167 |
| LWSFE-2.5A | 310 | 288 | 260 | 167 |
| LWSFE-3A | 358 | 338 | 312 | 208 |
| LWSFE-4A | 464 | 435 | 415 | 208 |
| LWSFE-5A | 565 | 538 | 515 | 208 |
| LWSFE-6A | 655 | 638 | 615 | 268 |
Performance Data
| Model | Speed (r/min) | Flow Rate (m³/h) | Air Pressure (Pa) | Matching Motor (kw) |
|---|---|---|---|---|
| LWSFE-2A-0.08-2P-1-001 | 2900 | 1000-1300 | 140 | 0.08 |
| LWSFE-2.5A-0.1-2P-1-001 | 2900 | 1200-2000 | 200 | 0.1 |
| LWSFE-3A-0.25-2P-1-001 | 2900 | 2000-3000 | 230 | 0.25 |
| LWSFE-3A-0.12-4P-1-002 | 1450 | 1500-2000 | 60 | 0.12 |
| LWSFE-4A-1.1-2P-1-001 | 2900 | 6000-11000 | 320 | 1.1 |
| LWSFE-4A-0.37-4P-1-003 | 1450 | 3500-5200 | 160 | 0.37 |
| LWSFE-5A-0.55-4P-1-001 | 1450 | 7000-9500 | 185 | 0.55 |
| LWSFE-6A-1.5-4P-1-001 | 1450 | 12000-18000 | 280 | 1.5 |
Powerful Airflow Performance
The LWSFE is engineered to aggressively tackle heat build-up in demanding facilities. The aerodynamic design evenly and densely slices the air, transforming raw motor energy into a highly focused, high-speed wind stream.
By delivering ample power and rapid air replacement, this fan quickly mitigates hot industrial environments, bringing a cool, refreshing, and safe breeze to workers during intense operational shifts or hot summer days.
- Evenly sliced airflow — Minimizes turbulence and maximizes throw distance
- High wind speed — Rapidly clears out heat pockets and stale air
- Ample power — Delivers up to 18,000 m³/h capacity
Thickened Aluminum Alloy Fan Blades
To withstand continuous industrial use without succumbing to fatigue, the impeller utilizes thickened, high-strength aluminum alloy blades. This robust material is entirely rust-proof, making it suitable for humid or challenging environments.
Every blade assembly undergoes strict dynamic balancing. This deformation-free construction guarantees superior aerodynamics, resulting in a strong, focused airflow profile that maintains exceptionally low noise levels.
- Thickened aluminum alloy — Rust-proof and deformation-free
- Strict dynamic balancing — Ensures smooth, low-noise running
- Focused airflow — Aerodynamically optimized for industrial throw
High-Power Plastic-Sealed Motor
The core advantage of the LWSFE series is its premium plastic-sealed (resin-packed) motor structure. Inside, it is equipped with thickened pure copper-core coils that ensure highly efficient energy transmission.
This specialized design not only dampens operational vibration for quieter performance but also keeps the temperature rise exceptionally low. It seals the vital electrical components against environmental dust and moisture, ensuring durable performance and a long service life.
- Thickened copper-core coils — Maximizes electrical efficiency
- Plastic-sealed housing — Dampens vibration and seals out dust
- Low temperature rise — Ensures durable, long-term continuous use
130° Adjustable, Lockable at Any Angle
Industrial layouts are complex, and ventilation needs frequently shift. The LWSFE is mounted on a sturdy U-shaped stand featuring a 130° pivot axis, allowing you to angle the high-velocity air stream precisely where it's required.
Simply tilt the fan head to target specific machinery, elevated work platforms, or floor-level fumes, and turn the heavy-duty knob handles on both sides to firmly lock the tilt angle at any position.
- 130° tilt range — Directs airflow up, down, or straight ahead
- Dual locking knobs — Secures the fan head firmly in place
- Targeted ventilation — Perfect for localized cooling and exhaust
Convenient Carry Handle Design
Portability is a primary asset for maintenance crews and contractors. The LWSFE is thoughtfully equipped with a user-friendly carrying handle securely mounted on the top of the casing.
This ergonomic addition facilitates quick transport and effortless movement by a single worker, allowing the fan to easily adapt to the changing ventilation requirements of different work areas across a large facility.
- Top-mounted handle — Ergonomic and securely fastened
- Quick transport — Enables rapid deployment by a single worker
- High adaptability — Easily shifts between different workstations
Wide Industrial Applications
A versatile, portable solution for targeted cooling and air circulation in demanding environments.
Factory Workshops
Provides powerful, low-noise air circulation near production lines, cooling down workers without disrupting communication.
Warehouses & Logistics Centers
Easily moved along loading docks and aisles to clear stuffy air and maintain comfort in expansive storage zones.
Construction Sites
Rugged mobility makes it perfect for drying fresh paint, clearing dust, or supplying fresh air to indoor builds.
Basements & Underground Spaces
Quickly tackles moisture and poor air quality by circulating fresh air into enclosed lower-level areas.
Tunnel Ventilation
Drives focused, high-speed airflow deep into transit tunnels and excavation sites to clear equipment exhaust.
Equipment Cooling
Utilize the 130° adjustable tilt to aim a concentrated breeze directly at overheating heavy machinery and motors.
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 LWSFE Low-noise Axial Fan.
What are the benefits of the plastic-sealed motor?
The plastic-sealed (resin-packed) motor provides excellent protection against dust and moisture, dampens internal operational vibration for lower noise, and extends the motor's lifespan compared to standard exposed metal casings.
How does the angle adjustment work?
The fan sits on a sturdy U-shaped stand and features a 130° adjustable tilt. By turning the knob handles on both sides, you can aim and firmly lock the airflow at any precise angle needed for your specific work area.
Is the LWSFE fan easy to move around a facility?
Yes, it is designed for high mobility. The top of the casing is equipped with a user-friendly carrying handle, facilitating quick transport by a single person to adapt to shifting ventilation needs on job sites.
What material are the fan blades made of?
The impeller is made of thickened aluminum alloy. These blades are rust-proof, highly durable, and undergo strict dynamic balancing to deliver focused, high-strength airflow without deformation.
What is the airflow capacity of this series?
The LWSFE series is available in multiple sizes (from 210mm to 615mm blade diameter), providing an airflow range from 1,000 m³/h up to a powerful 18,000 m³/h for heavy-duty industrial ventilation.
Need a Quote or Custom Specifications?
Tell us your airflow, static pressure, and facility requirements — our engineers will size the right LWSFE model and provide a quote within 1 business day.
