This machine has compact structure and high production efficiency. It adopts bowl bearing with high precision reserve and centralised thin oil lubrication system and novel dry oil sealing dustproof system. When the material that cannot be crushed enters into the crushing chamber, the spring safety device can protect the equipment from being damaged, which is usually adopted in secondary crushing and tertiary crushing. It is suitable for crushing all kinds of ores and rocks with medium or above hardness, such as iron ore, copper ore, limestone, quartz, granite, sandstone, etc. The standard type is suitable for medium crushing, medium crushing, and medium crushing. Standard type is suitable for medium crushing, medium, short head type are used in fine crushing, widely used in mineral processing, building materials, water conservancy, chemical industry and other fields.
