
50 Inch Stainless Steel Exhaust Fan. Stainless Steel Blades: Six durable blades formed in one step, passed dynamic balance test for max airflow and min noise. High Energy Efficiency: Requires 80% lower ownership cost and 90% lower operating cost compared to air conditioning. Superior Corrosion Resistance: Thick zinc coating (150g/275 m2) ensures great durability in harsh environments. Advanced Shutter Design: High strength hot galvanized plate with hammer device ensures windproof, rainproof, and dustproof performance. Reliable Motor Quality: V type belt motor is 3C approved, IP54 rated, and features Class F insulation. Versatile Applications: Ideal for greenhouses, textile mills, stock farms, workshops, and logistics storage. Comprehensive Certifications: Meets ISO, CE, CCC, and UL standards for safety and quality assurance. Customization Options: OEM and ODM services available with customizable power supply, timer, and speed settings.