-All aluminum construction, light weight and long service life;

-Series of noise reduction techniques result in low operating noise;

-Non-overloading backward inclined aluminum wheel with G2.5 balance level;

-Arc-shaped weather hood to provide smooth, turbulent-free airflow;

-Active cooling technology effectively extends the life of bearings, motors and belts;

-Rain proof structure;

-Independent drive chamber prevents the contamination of the drive parts;

-Easy maintenance, all maintenance work can be completed on rooftop to save workload;

-Stainless steel bolts and stainless bird screen are standard.