Product Description 1530 / 60'' wall mounted industrial axial flow exhaust fan Hammer type ventilation fans for factory Fans Mainly consists of the blade ,motor,frame , protect net , bracing cage ,shutters .The motor drives blade to cause air flow and louver window can open and close automatically to keep the dust from entering .AD / CAM optimization design and manufacturing are adopted,and quality control is strict. Huayi's heavy hammer fans have the following characteristics: high total pressure, large air volume, low noise, low energy consumption, stable operation, long service life, Structure diagram Detail image Different models Details Images Shutters 1. Material: Hot Galvanized sheet with zinc thickness of 275g/sqm 2. Shutter Fixed Parts: High quality nylon. Advantage: High anti-corrosion performance, open flexibly, long service life, no deformation ,no rust, running stable. Motor 100% pure copper wire.Motor Protection Grade: IP55 Insulation Class: F grade. Motor voltage and frequency can be customized.Both Chinese famous motor and Siemens motor are available. Fan Blades 1. Material :430 stainless steel, thickness 1.2mm 2. Diameter: 1270mm Advantage: Large air flow, no deformation, no fracture, no dust, attractive and durable. Note: Blade material also have galvanized sheet, aluminum alloy for option Belt Pulley 1. Material: High strength aluminum-magnesium alloy by die-casting. 2. Blast-sanding treatment, eliminate internal stress to improve its own rigidity and stability Advantage: Light weight, Low vibration ,attractive appearance. Opening system Heavy hammer exhaust fan Material: High quality Nylon PA66 Advantage:It can keep the shutters open at complete 90 degree to ensure the lowest air resistantce and biggest air volume Case Display exhaust fan are widely used in agriculture and industry's ventilation and cooling system. For example, animal husbandry ,poultry house , greenhouse ,factory workshop, textile, chemical and so on. Company Profile Qingzhou Huayi Temperature Control Equipment Co., Ltd is a professional company engaged in the research and design of temperature control equipment. we devotes ourselve to the scientific and technological development of ventilation and cooling equipment, heating equipment and animal husbandry machinery, adopts advanced CAD software technology to design new products, and continuously builds energy-saving.technologies.We are a new type of workshop ventilation and cooling equipment, standardized livestock House, gardening greenhouse ventilation and cooling, heating equipment, the production of "HUAYI" brand products six series of more than 20 specifications, the main products include cooling pad, animal husbandry fan, negative pressure fan, gardening fan, circulation fan, roof exhaust fan, axial flow fan and so on, which can be widely used in agriculture, flowers, animal husbandry, plant, textile,coal mine, chemical industry, shopping malls and supermarkets, medicine, grain,vegetables, timber and other industries. Our products are exported to domestic and foreign markets.We strive to create products with good performance and excellent price. We do OEM or ODM service. No matter customize pattern, logo, package. All of our products have passed strict quality control and been issued certification of CE,ISO9001. Our products are exported all over the world and widely recognized and trusted by users.We welcome potential partners both at home and abroad contact and visit us for future business relationships and mutual success! Packaging&Shipping The exhaust fans can either be shipped in unassebled way to save space and shippin