The machine has compact structure and high production efficiency. It applies the bowl-type bearing with high precision, moreover, due to the concentrated diluted oil lubrication system and the novel dry oil sealing & dustproof system, the safety spring device can protect the equipment when the broken materials fail to be conveyed to the crushing cavity, given this, the machine is always used for the second-level and third-level crushing. Therefore, it is suitable for breaking the ores and rocks which have medium or above hardness, such as, iron ore, cooper ore, limestone, quartz, granite, sandstone and others. Therein, the standard machine is suitable for the intermediate crushing, however, the middle-sized and short-head type machine shall be applied for the fine crushing, in summary, the machine is widely used in the mineral separation, building materials, water conservancy, chemical engineering and other fields.

Structural Features:

1. It has large crushing ratio.
2. The materials particle size is satisfactory.
3. The discharge port can be adjusted conveniently and rapidly.
4. It is equipped with anti-iron overload protection.
5. The mortar rolled wall has uniform abrasion and long service life.
6. It applies dry oil or water sealing mode.
7. The product has low repairing costs.
8. The product can be operated steadily with high reliability.