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This Portable Large Fan is built to enhance comfort in large spaces. It features a high-efficiency, energy-saving permanent magnet outer-rotor motor with variable speed control. Compact, quiet, and easy to move, it combines powerful airflow with low energy use.
With an air delivery distance of up to 30 meters, the 220V brushless DC motor ensures strong wind performance and efficient power consumption. The stepless speed control allows precise airflow adjustment.
Perfect for factories, warehouses, workshops, farms, construction sites, stadiums, exhibitions, waiting areas, outdoor events, and other large ventilated spaces.
Plug and play — no installation required. Equipped with four caster wheels with brakes for smooth and stable mobility.
Fully sealed design, eliminating the need to replace oil or mechanical parts — reducing maintenance costs.
The Permanent Magnet Synchronous Motor (PMSM)
saves up to 30% energy, meets the IE4 high-efficiency
standard,
and complies with China’s Level 1 national
energy rating.
Operates at just 38 dB, delivering a comfortable breeze with minimal noise.
The motor can withstand up to 120°C without
demagnetization. CNC-engineered blades ensure
superior strength and flexibility, while capacitors last up
to 32,000 hours, providing dependable performance
even in demanding environments.
IP68-rated motor with ultra-high torque up to 310 N·m, providing powerful, stable performance — strong enough to drive an electric vehicle.
30% energy saving, meeting IE4 high-efficiency and GB30253-2013 Tier 1 national standards.
Built with 180°C high-temperature copper wire and a durable protective casing for superior strength.
Precision cooling system ensures long-lasting, stable operation and extended lifespan.
Fully sealed, maintenance-free design — no need for oil or seal replacement.
Custom magnetic steel guarantees demagnetization and consistent performance
Experience advanced comfort and efficiency with our intelligent control system — designed to deliver optimal performance with smart precision.
Adjustable Airflow: Multi-speed settings allow flexible airflow control to suit various environments and user preferences.
Smart Temperature Regulation: Automatically adjusts fan speed according to ambient temperature for superior energy efficiency.
Remote Operation: Convenient remote-control functionality enables effortless operation anytime, anywhere.
Safety & Reliability: Built-in fault alarm ensures stable and secure system performance at all times.
Premium Control Module: Crafted with high-quality components for outstanding reliability and long- lasting durability.
SMART ELECTRO’s patented airfoil design delivers higher airflow, greater efficiency, and wider coverage.
Made from high-strength AA6063 T6 aviation-grade magnesium-aluminum alloy, offering excellent hardness and corrosion resistance.
Each blade undergoes tensile and fatigue testing, followed by multiple heat treatments to prevent bending or deformation.
Internal reinforcement ribs enhance blade strength, prevent drooping, and reduce fatigue on connecting components.
The shaded area represents the cooling range, which can reach up to 100 ft (30 m). Wind speed varies across each zone. The shaded parts indicate the fan’s cooling area — the darker the shade, the higher the wind speed.
| Product Model | Fan Diameter | Motor Power (kw) | Blades | Speed (RPM) | Noise Level (db) | Voltage | Weight (kg) |
|---|---|---|---|---|---|---|---|
| SEF-20 | 2m (7ft) | 0.65 | 5/6 | 0-230 | 38 | 220V | 115 |
| SEF-15 | 1.5m (5ft) | 0.55 | 5/6 | 0-300 | 38 | 220V | 92 |
| SEF-12 | 1.2m (4ft) | 0.40 | 5/6 | 0-380 | 38 | 220V | 80 |
| SEF-09 | 0.9m (3ft) | 0.35 | 5/6 | 0-420 | 38 | 220V | 65 |
| Specifications | SEF-20 | SEF-15 | SEF-12 | SEF-09 |
|---|---|---|---|---|
| H – Overall Height (mm) | 2100 | 1700 | 1400 | 1100 |
| D – Air Outlet Inner Diameter (mm) | 1915 | 1540 | 1240 | 930 |
| d – Air Outlet Outer Diameter (mm) | 1985 | 1610 | 1310 | 1000 |
| W – Unit Width (mm) | 720 | 720 | 640 | 640 |
| W1 – Duct Depth (mm) | 300 | 300 | 300 | 300 |
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