Firstly,we make it clear that what is crusher.A crusher comprises a crushing rotor being rotatable and having a crushing bit to crush target materials to be crushed, a feed conveyor for conveying the target materials toward the crushing rotor, and a pressing feeder unit including a pressing roller disposed above the feed conveyor and introducing the target materials on the feed conveyor toward the crushing rotor while pressing the target materials from above, and an anvil disposed at a position which is closer to the crushing rotor than a point where the pressing roller presses the target materials and which is outward of the crushing rotor in the radial direction. The fixed bit has a bumping surface, against which the target materials bump, disposed in an opposed relation to the rotating direction of the crushing bit, thereby crushing the target materials introduced toward the crushing rotor. The strip and strip pulley are driven by a motor, and the moving jaw moves up and down via eccentric shaft. The angle between fixed jaw and moving jaw becomes smaller when the moving jaw runs down, then the materials are crushed into pieces. It will become bigger when the moving jaw runs up. The moving jaw plate leaves the fixed jaw plate under the action of pole and spring , then the final products come out from the crushing cavity. Secondly,we introduce some new type of Coal Crusher 1.Portable pill crusher A pill crusher has a portable housing with a base to be supported on a surface and a top surface having a transverse slot opening into a holding container in the housing for one of more pills carried in a pouch. The pouch can be manually inserted through the slot until a bottom edge of the pouch sits on a base of the container. Two horizontally oriented and opposed solenoids are powered by rechargeable battery power in the housing and drive vertical crusher plates toward one another in the holding container to impact repeatedly, during depression by the operator of a manual switch, until the operator determines that the repeated impacting action has sufficiently crushed the pills in the pouch so that the pouch can be withdrawn through the top opening. 2 Mobile jaw crusher A mobile jaw crusher assembly for crushing objects is provided. The assembly includes a frame and a first crushing member that is configured to be moved and at least partially rotated by a vehicle. The first crushing member is configured to be attached to the vehicle. A second crushing member is also present and faces the first crushing member. The first and second crushing members define a crushing chamber that is used for crushing objects. The second crushing member is configured to be moved and at least partially rotated by the vehicle. AS the technology advancing by time,more and more types of Crusher was invented to serve the mining industry.