Product Advantage
Optimized Airflow & Low Energy Consumption: The straight blade structure with precision-calculated attack angles reduces airflow eddies, boasting an efficiency of ≥78%—12% higher than traditional curved axial blades. When used with a 0.55kW motor, it cuts energy use by 18% compared to standard blades, suitable for energy-saving-focused applications.
Durable & Impact-Resistant Material: The carbon fiber-reinforced ABS material offers a tensile strength of ≥48MPa and an Izod impact strength (notched) of ≥10kJ/m². It withstands accidental impacts (e.g., from small debris) without cracking and resists UV degradation, maintaining performance for over 5 years in outdoor-mounted systems.
Ultra-Quiet Operation: The blade’s aerodynamic profile and static balance grade (G6.3) minimize operational noise to ≤58dB(A) at 2800 RPM. This makes it perfect for residential spaces (e.g., bathroom exhaust) and indoor workshops, avoiding noise disruption to daily life or work.
Universal Compatibility & Fast Installation: Equipped with a 12mm inner bore and a set-screw locking mechanism, it fits most 0.37-0.75kW AC/DC motors. Its lightweight design (net weight: 0.6kg) allows single-person installation, and the pre-marked alignment lines ensure quick matching with fan grilles.
Wide Environmental Adaptability: The modified ABS material retains 88% of its mechanical properties at -20℃ (preventing brittleness in cold weather) and 82% at 70℃ (resisting softening in high temperatures). It also repels water and dust, suitable for both dry indoor and semi-outdoor (e.g., covered parking lot cooling) scenarios.
Technical Parameters
Parameter | Specification | Unit | Test Standard |
Material | 20% Carbon Fiber-Reinforced ABS | - | ISO 1043-2 |
Blade Structure | Straight Blade | - | DIN 4109 |
Number of Blades | 8 | Pcs | - |
Outer Diameter | 250 | mm | ISO 13349 |
Inner Bore Diameter | 12 | mm | - |
Rated Speed | 2800 | RPM | IEC 60034-1 |
Air Volume Range | 500-900 | m³/h | AMCA 210 |
Static Pressure | 80-150 | Pa | AMCA 210 |
Operating Temperature Range | -20 ~ 70 | ℃ | ISO 75-2 |
Tensile Strength | ≥48 | MPa | ISO 527-1 |
Impact Strength (Izod, Notched) | ≥10 | kJ/m² | ISO 180 |
Static Balance Grade | G6.3 | - | ISO 1940-1 |
Net Weight | 0.6 ± 0.03 | kg | - |
Product Uses
1. Residential Ventilation Systems: Installed in bathroom exhaust fans and kitchen range hoods. It efficiently removes moisture, odors, and cooking fumes—reducing bathroom mold growth by 60% and improving indoor air quality to meet WHO residential air standards.
2. Automotive Cooling Systems: Integrated into electric vehicle (EV) battery radiators and engine cooling fans. The blade’s lightweight design reduces vehicle energy consumption, while its heat resistance ensures stable cooling for EV batteries during fast charging.
3. Small-Scale Industrial Exhaust: Used in exhaust fans for 3D printing workshops and small electronics factories. It extracts harmful fumes (e.g., resin vapors, soldering smoke) and maintains a clean working environment, protecting workers from respiratory hazards.
4. Agricultural Livestock Ventilation: Applied to axial flow fans in poultry farms and pigsties. It circulates fresh air, lowers indoor temperatures by 4-6℃ in summer, and reduces ammonia concentrations—improving livestock health and increasing breeding efficiency by 8%-10%.
Product Operate Guide
Pre-Installation Check: Confirm the blade’s bore size matches the motor. Wipe the motor shaft with alcohol to remove oil, then apply a small amount of silicone grease to reduce friction during installation.
Installation Steps: Slide the blade onto the motor shaft until it touches the positioning shoulder. Align the set-screw with the shaft’s flat surface, then tighten the M4 set screw to a torque of 1.5-2N·m—avoid over-tightening to prevent shaft damage.
Post-Installation Testing: Manually rotate the blade to ensure no contact with the fan housing (clearance ≥3mm). Run the fan at full speed for 10 minutes; if vibration or noise occurs, stop and recheck the blade’s alignment.
Maintenance Tips: Clean the blade monthly with a soft brush to remove dust; for oil stains (e.g., kitchen use), wipe with a cloth dipped in neutral detergent. Replace the blade every 4 years or if cracks are found.
FAQ
1. Q: Can this blade be used in outdoor rain-prone areas (e.g., outdoor EV charging stations)?
A: Yes, but we recommend adding a waterproof fan cover. The ABS material is water-resistant, but prolonged direct rain may cause rust on the motor—contact us for compatible waterproof accessories.
2. Q: What’s the lead time for blades with custom colors (e.g., black for automotive use)?
A: Standard color (white) has a 3-4 working day lead time. Custom colors require 7-9 working days, including color matching and small-batch testing to ensure no impact on material performance.
3. Q: How to resolve uneven airflow after installation?
A: Check if the blade is skewed—loosen the set screw, realign it with the motor shaft’s flat surface, and retighten. If airflow remains uneven, verify the fan grille is not blocked by debris.
4. Q: What’s the warranty period, and does it cover wear from dust?
A: We offer a 1.5-year warranty for material defects (e.g., cracking, deformation). Normal dust wear is not covered, but we provide a 10% discount on replacement blades for regular customers.
5. Q: Is the blade compatible with variable-speed motors?
A: Yes, it works with variable-speed motors (0.37-0.75kW) at speeds 1800-3000 RPM. At lower speeds (1800 RPM), air volume decreases to 300-500 m³/h, suitable for scenarios requiring adjustable airflow.
