On the railway line nuder normal major repair cycle, RM-80 full section undercutting ballast cleaning machine has enough excavation ability in working condition, productivity can come up with it's design standard. 对于正常大修周期的线路上,RM80型全断面道碴清筛机作业运行工况具有足够的挖掘能力,作业效率基本上能够达到其设计标准,这些在国外已经得到了充分的证明。