LONGWELL is a manufacturer of HVAC fans blowers , motors and components such as centrifugal fans, axial fans cross flow fans, singledouble forward curved fans AC,BLDC/ECM motors as well as industrial fan blowers /established in 1990 equipped with high advanced testing and production facilities ,automatic welding machines CNC machining centers ,injection machines . with over than 28 years manufacturing experiences LONGWELL is very skilled in designing , developing and manufacturing and exporting to over 30 countries including many Fortune Global 500 customers in HVACR application . and products passed CCC,CE ETL and UL . ,br >br LONGWELL EMC Technology is giving more energy saving to our world .>br the advantages are >br<1 Our ECM motorized fans,effiency are 30-60% higher than the traditional motors .br<2the build-in PCBA achieved stepless speed control,and communication with customers products . br<3longer life span up to 600,000hours . br<4IP55,IP68 can be customized .br<5 Sine wave ,three phase eliminate electromagnetic-acoustic and lots of other protection functions like soft start overload ,motor block .^br>br>brLONGWELL has large products range which could offer customers a more perfectly products solutions by not only producing fans and motors >but also do the perfectly motor and fans matching and offering good quality and very competitive prices by large scale productions .,brLONGWELL expects all our customers have their 100> satisfied solution in fans and motors . br