This series of crusher is used for crushing of ores and rocks,the advantages are: reliable structure, high efficiency,easy-to-adjust and economical. The safety spring system is theoverload protection device, which makes foreign material goesthrough the machine without bring any hurt to it. The sealing modesare oil and water, which segregate the stone powder and lubricatingsystem. The crushing chamber is decided by the purpose of ore, thestandard model is suitable for medium crushing; the medium model issuitable for fine crushing and the short head model is suitable forfine crushing