Products Features:
1). Low noise, steady operation, big air flow, power consumption: 0.75 kilowatt per hour.

2). Frame and blades are made of FRP, resistant to corrosion, acidproof alkali.

3). The cone part, designed as a horn, maintenance-free. Do not need to replace the belt for maintenance.

4). The design of shutter system adopt the principle of air forward flow, preventing rain water entering the
Room. Do not need electricity or manual switch for opening and closing.

5). Mirror designed and injection moulding Stainless steel blade, with big air volume, never distortion and broken

6). High efficient and energy-saving motor with CCC certificate, protection class: IP55, insulation class: F grade

7). The cone part, designed as a horn, maintenance-free. Do not need to replace the belt for maintenance.

8). The design of shuter system adopt the principle of air forward flow, preventing rain water entering the room. Do not need electricity or manual switch for opening and closing.

Priciple of negative pressure fan: The negative pressure fan is designed according to the air convection and the principle of the negative pressure ventilation. The negative pressure fan is usually installed in poor ventilation places. When it is working, it will force out the stagnant hot-gas, peculiar smell and squalid smoke bythe negative pressure rapidly in the shortest posssible time. At the same time, fresh air will be supplied into the door quickly and flow circularly, so as to achieve the aim of ventilation and cooling and improve the workshop's environment.

Qingzhou Jinlong Temperature-Controlled Equipment Co.,Ltd is a professional production factory of animal husbandry machinery in Shandong province. It is a high science & technology corporation integrating designing, production, installation, sale and after-sale service of temperature control equipments. 
Our company has advanced machining equipments and strong technical strength. By introducing advanced quality control equipments, static and dynamic balancing machine and hydraulic machine and absorbing domestic similiar products' soul, adopting quality material and advanced technology, our company developed over 30 varieties of products such as ventilation temperature reducing fan, temperature curtain, environmental fan, roofing fan, industrial wall fan, cross spraying nozzle for temperature reducing and disinfection, heating earth oven fan, heating automatic fueling hot fan and automatic coal fueling hot fan and so on. 
They features energy saving, stable running, low noise, stable performance, solid and durability and elegance, which are widely used in agricultural, flowers, animal husbandry, factory shop, textile, mine, chemical, medicine, grains, tea and timber and so on. 
Our company has always insisted on relying quality to seek survival, benefit to seek development. Use fine after-sale service to meet the needs of consumers. Honesty and credit, first-class. Products are sold well all over our country. Warmly welcome all fields of friends to visit our company and negotiate trade.