Abstract: The paper analyzed the problems in the original 60.4 m3 Ha'erwusu coal mine 495HR shovel bucket configurationand the application effect of 52.8 m3 bucket from the capacity ratio，loading cycles and shovel productioncapacity.The small bucket was regarded to be more reasonable.Theoretical analysis showed that matching with theMT5500 truck，52.8 m3 bucket was more reasonable，and the hours of technical production and actual productionwas only decreased by 1.0% and 3.4%.Production practice showsed that，the use of 52.8 m3 bucket load cycle timecould be shortened by 6.2%，and the actual hours of production capacity was only reduced by 3.6%.Because of theimproved bucket to open fighting in reducing the weight of a load，Shovel bucket to open the number ofinstitutions and the failure time of fault were reduced by 70% and 77%，Monthly capacity increased by 4.4%.

Key words: Open pit, Shovel, Bucket, Capacity production