The paper indicates the defects of the first doorframe of the 1500/300 crusher in the using process.It analyses the causes replaced frequently,expounds the concrete scheme to revamp the doorframe.

• 文章叙述了1500/300破碎机原前门框在使用过程中的缺陷,对前门框频繁更换的原因进行了分析,说明了1500/300破碎机前门框改造的具体方案。