Belt driven centrifugal fan designed for hot air recycling in furnace continuous operation with air stream up to 250ºC. Frameworks are manufactured from electro-welded sheet with high grade thermal and acoustic insulation rock wool panel and with a though grey colour, epoxy-polyester paint coating. Forward curved centrifugal impellers manufactured from galvanised sheet steel. Three phase [INDPROT] [CLASEMOTOR] motor. Brand [MARCA] model [MODELO] .