Main features: 1. The rotary disc is connected with the spline on the main shaft to ensure the pressure balance of the two grinding areas; 2. Mechanical seal and reliable sealing 3. Adopt electric, manual feed, convenient operation 4. The quality of pulping is stable, uniform and effective The device is widely used for straw pulp,waste paper pulp,the commodity striking pulp with the manual,electric operation automatical control system.It will realize constant energy consumption control or constant power control mode to strike pulp.accordingly,the striking effect will be ensured stanblity.