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Roller crusher, belongs to traditional crushing equipment. It is mainly used for fine processing of material particles. As the main working part, the two cylindrical rollers rotate oppositely to achieve the purpose of crushing. Due to its peculiar tooth crushing structure, it is also called Teeth Roll Crusher.

Teeth roll crusher is available in two roll and four roll series. According to the characteristics of material, coarse and fine teeth can be chosen. Four roll type teeth crusher is actually made up of two double roll teeth crushers.

Teeth roll crusher is outstanding for its large crushing capacity. In addition, the hydraulic coupling with limited distance connecting the motor and reducer prevents overload and the overload protection sensor device makes the machine safe and reliable. The hydraulic adjustment of tooth roller space and central lubrication of tooth roll bearing are additional advantages. The optimization design of tooth shape and selective crushing make roll crusher a machine with high efficiency and low energy consumption and uniform granularity.

Working principle of stone double roller crusher:
In the working process, material falls in between the two rollers, and will be crushed. Normally, the material will be discharged from the bottom. When encountering material with high hardness, the rollers will automatically concede by hydraulic cylinder or spring which will increase the space between the two rollers, resulting in the falling of material with high hardness and uncrushable material, to protect the machine from damage. Changing the space between the two rollers can definitely control the maximum particle size of discharged material.

Performance features of stone double roller crusher:
1. The structure of double roll coal crusher is simple and compact, the noise is low, the efficiency is high.

2. The installation is flexible, basically needs no foundation.
3. The rollers' surface adopts anti-abrasive welding rod or exchangeable dental plate, the maintenance is simple.

4. Self-preservation ability is strong, the high-hardness materials (such as all sorts of metal block) won't break the equipment's parts when they enter the shredding breach.

5. The discharge gram size is adjustable, the minimum can reach 2-10 mm.