... with about 9 years' experince in belt conveyors, conveyor idler rollers, conveyor rollers, roller support design and supply. All ... From -25°c to 40°c.Belt conveyor machinery idler roller Trough idler roller: 35° and 45°. Note: We usually ... and returning rollers)4. Idler rollers parts (Trough idler rollers, parallel idler rollers, adjusting core idler rollers, and impact idler rollers , etc.)5. ...