The front stretcher adopts magnetic powder breaker to provide linear tension, to solve the relative slip between conveyor belt and damping roll;
前伸张器采用磁粉制动器线性的提供张力，解决输送带与阻尼辊间的相对滑动；
2
Using ZPGL high-strength double toothed rollbreaker not only satisfied with size demand for washing processing, but also improve cleaning coal rate and creates higher economy benefit.