With the advance design and manufacture techniques, some large scale vibrating screens with excellent performances are manufactured abroad. Its un-failure time is more than 3,000 hrs, and overhaul time is more than 20,000 hrs.

• 国外大型振动筛采用先进的设计技术和制造技术，生产出了性能优良的大型筛分机械，其无故障运行时间在3，000h以上，大修期在20，000h以上。 而国内同类产品的相同技术指标则远低于上述指标。