
Run on Timer for Exhaust Fan for Greehouse. Automatic Drop Hammer Shutter: Gravity counterweight shutters close tightly to prevent backwind and dust ingress with no air leakage. Corrosion-Resistant Materials: Hot-dip galvanized frame and 430 stainless steel blades ensure durability in humid farm environments. High-Efficiency Copper Motor: Pure copper waterproof motor delivers high airflow with low power consumption and low noise. Customizable Voltage Options: Motor voltage and frequency can be customized to meet specific requirements beyond standard 380V/220V. Imported Quality Components: Features Japanese Mitsuboshi belts and French imported double-row bearings for long service life. Easy Wall-Mount Installation: Simple wall-mounted design ensures stable operation with minimal maintenance requirements. Free Spare Parts Support: Includes a proportion of free vulnerable spare parts with every order for future maintenance. Comprehensive Warranty Coverage: 1-year warranty covers free replacement parts for motor or key failures under normal use. We offer detailed installation instructions, operation tutorials and online technical guidance to help customers install and use the machines correctly. Our professional sales and technical team provides lifelong online consultation and after-sales service to solve your problems quickly.