coal impactor, slow speed impactors, washery reject crusher. An impactor is basically a device used to reduce size of large brittle and soft minerals like coal, limestone, gypsum, etc. As coal played a vital role in the modern industry, coal impactors are always in great demand to make it possible to process coal to small sizes appropriate for ... Crushing. McLanahan Indonesian Coal Crushing Plants,Indonesia Coal Crushing And Screening Plant Coal crushing and screening plant is used in indonesia mining production lineoal jaw crusher cone crusher hammer crusher and the vibrating screen cooperate with each to form a whole coal mining line for the local industry application. Online Chat.