... Special supply:heat-resistant,explosion-resistant. It caontains: light-duty,middle-sized and heavy-duty. ISO,CE. Carbon steel About us We ... Note: We usually use 35° trough idler. Idler rollers: Light, middle, heavy types. Diameter 500~1000mm. Diameters of the bearing changable ... the front part, and empty segment cleaning device in the middle.)8. Brake device (Roller stopping device, Belt stopping device ...