河卵石和風化沙的細碎機主要是反擊式細碎機，這類細碎機具有風化巖一次性成型、生產能力大、粒型均勻級配好的優點，但是設備磨損大，易損件更換頻繁的缺點，一般情況下大型設備約10000-12000噸更換一次錘頭，15萬噸更換篩板，小型設備約3500噸-5000噸更換一次錘頭，7萬噸更換篩板。

The crushing machine is mainly sand and gravel weathered jaw crusher, the crushing machine has the advantages of weathered rock, forming a one-time production capacity, uniform grain type well graded, but the equipment wear, replacement parts frequently shortcomings, generally about 10000-12000 tons of large equipment to replace a hammer, 150 thousand tons of replacement plate, small equipment about 3500 tons -5000 tons of replacement of a hammer, 70 thousand tons of replacement of the sieve.