Adjustable Speed Popular Improve Air Circulation Big Industrial Fans. Wide Diameter Options: Available in 4900mm, 5500mm, 6100mm, and 7300mm sizes. OEM and Color Customization: Supports OEM services and offers color customization options. Energy Efficient Operation: Reduces energy costs by 30% with direct drive motor technology. Multi-Angle Adjustable Mount: Features multi-angle adjustable installation hanger for flexible setup. Extended Rod Length: Standard 1 meter rod extends up to 3 meters for various heights. Versatile Power Supply: Compatible with both AC and DC power supply types. Low Noise Performance: Operates at very low decibel levels for non-disruptive airflow. High Airflow Capacity: Capable of moving nearly 400,000 CFM with 5 aviation aluminum blades.