锤碎机 – English translation

shredder A size-reduction machine which tears or grinds materials to a smaller and more uniform particle size. Shredding process is also called size reduction, grinding, milling, comminution, pulverisation, hogging, granulating, breaking, chipping, crushing, cutting, rasping (用于把材料研磨成更小更均匀颗粒的一部机器，粉碎过程也称为尺寸的缩小，包括磨、铣、粉碎、研碎、独占、制粒、打破、切削、破碎、切割、锉磨。)