- Special centrifugal Shutter system which open and close automatically when the fan works.
- Centrifugal Shutter system and other fitting of shutter made of nylon, High quality engineering plastics, High strength, and long service life.
- The Centrifugal guide rods are made of steel and then insert moulded with nylon fitting install in the flange, increasing the security, avoid the stretching change when nylon system operates.
- Blades make stainless steel.
- The belt pulley it made of high quality aluminum-magnesium alloy, light weight, high strengths.
|39″ Fan||900||610||1400||25000||70||Plus (-)70||750||380||1000||1000||400|
|50″ Fan||1250||439||1400||44000||56||Plus (-)70||1100||380||1380||1380||400|