1). Reasonable cone designing with big air volume, low noise, steady operation.
2). Imported bearing, high-strength, low noise and long service life
3). Shutter are made of high strength hot-galvanized steel sheet, anti-tioxidant, light weight and no distortions
4). High strength dabber aluminum-magnesium alloy wheel. High strength and long service life
5). Mirror designed and injection moulding Stainless steel blade, with big air volume, never distortion and
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.
|Model||JL-1380(54' ' centrifugal shutter ventilation fan) with CE certificate|
|Fan size||1380mm× 1380mm× 450mm|
|Frame||Hot galvanized sheet, high anti-corrosive durability, zinc coating thickness 180g/m2|
|Frame thickness||Top and bottom frame sheet is 1mm; the left and right sheet is 0.8mm|
|Motor||Chinese , Other motor accordingly, IP 54|
|Motor techenical data||1.1Kw 380 V 50 Hz three phase |
|Blade diameter||φ 1250mm (50inch) |
|Blade No.||6 |
|Blade material||BA430 stainless steel. Thickness 1.2mm|
|Blade instruction||Weight difference between blades is less than 0.5g, blades will go through|
balance test after assembled which can assure steady running and even airflow.
|Shutter ||Centrifugal system opening, spring close system, shutter can be opened at 90 degree.|
|Shutter thickness||Hot galvanized sheet. Thickness 0.8 mm and the middle piece is 1.2mm |
|Shutter Linkage||Aluminium |
|Spring ||304 stainless steel|
|Centrifugal opening system||30% fiberglas and 70% nylon. The column is 304 stainless steel. Weight: 1370± 4g|
|belt||Chinese belt and Mistuboshi belt can be choosed|
|Housing||Galvanized steel. Thickness 1mm|
|Net guard||Two half pieces|
|Small belt pulley||Cast Iron|
|Big belt pulley||Aluminium alloy|
|Motor base||Both 1.5HP and 1 HP motors can be installed|
|Motor hole||Installation hole of motor and nut are all six angles instead of the roundness.|
|Guarantee period||One year. Easy broken parts are offered free of charge during this period.|