... speed electrical hoists. It is a rail travelling small and medium-size crane. Its proper lifting weight is 3 to 16 ... environment with combustible, explosive or corrosive media. Working duty(Classification):A3=light dutyA5=medium duty Working ambient temperature:-25°C-40°C Safety ... )6,9,12,16Span(m)12,16,20,24,30Working duty A3,A5Power supply380V 50HZ three phase or according to your ...