Impact roller, a kind of rubber-coated conveyor roller, mainly consists of steer axle, impact discs coated by natural rubber and support rings which prevents discs slide. Rubber disc is manufactured by black rubber which has excellence elasticity, weather and wears resistance. Conveyor impact roller is designed for absorbing loads and reduces damage and breakdown of the material to be transported. It is often be found in mines, metallurgy, power, machinery, construction and other related industries.