The double-shaft shredder is a coarse crushing equipment, which can shred plastic barrels, rubber, waste home appliances, wood, metal scraps, packaging waste and other various materials. After materials are fed into the hopper, they fall between two sets of cutter shafts rotating towards each other at low speed. Relying on the shearing, tearing and squeezing effect of claw cutters, the materials are torn into lumps. It features low speed, high torque, low noise and less material blockage, suitable for the rough processing of large-size, thick and hard materials.