·Two motor and two frequency drive the system to achieve differential stepless regulation and energy return
·Spiral furnace blade: surfacing carbidgrinding
·Drum cone material outlet: replaceabe wear-resistant,corroslon-resistant ceramic alloy bushing
·Electrical protection: overload, phase loss, torque protection
·The main and auxiliary inverters use common DC bus, and the role of the auxiliar motor is to generate electricity(save power)