MC hydraulic refiners,serial N450,500 and 530,belong to the new generation of MC(medium consistency )pule machine.It is suitable to refine and grind pulp continuously in pulp mill.They can be used to refine chemical pulp or grind high production rate semichemical pulp.The refiners can be used to refine rough pulp that was steamed and washed.And also,they can be used as purified machines for refined pulp previous to influx the paper machine.It is suitable to refine waste pulp,herb pulp,broadleaf wood pulp,and coniferous wood pulp etc.中浓液压磨浆机代替传统的低浓双盘磨机，打浆浓度从3%-4%提高到6%-12%，使打浆工段平均吨浆节电25%-60%，打浆区用水量减少50%以上，纸张物理强度指标提高10%-50%。由于大幅节电、节水和提高纸张质量，使企业获得显著的经济效益和社会效益。
　　 N系列中浓液压磨浆机是改进型的中浓液压磨浆机。机型结构刚性大，磨片运行平行度高，适应于大中小型造纸企业不同的原料和纸种打浆的需求。