德兴铜矿大山选矿厂前三万系统六台破碎机是从美国Ｎｏｒｄｂｒｅｇ公司引进的ＳＸＨＤ－７超重型圆锥破碎机，后三万系统是沈阳重型机器厂引进美国技术制造的６台同型号破碎机。该破碎机和其它破碎设备相比，具有破碎比大、产量高、功耗小产品粒度细而均匀与适合破碎中、硬矿 Dexing Copper Mine Dashan Concentrator 30,000 Systems Six Shredders are imported from the United States Nordbreg SXHD-7 super-heavy cone crusher, the latter three thousand system is the Shenyang Heavy Machinery Plant to introduce the United States to manufacture 6 sets of the same type of broken machine. Compared with other crushing equipment, the crusher has the advantages of big crushing ratio, high output and small power consumption. The products are fine and uniform in size and suitable for crushing medium and hard coal