Stone Roller Crusher / Roll Crusher

Double Roller Crusher is suitable for crushing sticky and wet material in addition to the regular primary and secondary crushing of soft and semi hard particles. The machine is mainly used for primary crushing in open pit mining (ROM) as well as for further crushing stages. They are particularly used for primary crushing in open pit mining (ROM) as well as further crushing (2nd + 3rd crushing stage). Feed material which can used in the machine are lignite, coal, soft to medium-hard rock, different types of ore, chalk, gypsum, limestone, marl, clay, bauxite, different types of phosphates, oil sand and overburden.

Application:

The stone roller crusher/roll crusher is of simple structure, reliable operation and low cost. It is widely used in middle and small sized mines for intermediate and fine crashing of the brittle and soft ores of intermediate hardness like coal and coke.

Applicable Material:

1) Clay
2) Shale clay
3) Coal gangue
4) River silt 

Technical Parameters :

Components of Double Roller Crusher

1.Hand pump for safe, easy hydraulic adjustment of crushing rolls

2.Relief springs on each side that adjust for maximum protection from tramp metal damage

3.Driven rolls that feature a V-belt and spur gear system for easier maintenance

4.Spur gears of case hardened 4140 steel that allow 0'' to 6'' adjustment between crushing rolls

5.Crushing rolls use replaceable segments bolted together for easy maintenance

6.Sealed bearings in dust-tight pillow blocks for longer life

7.Ribbed housings of heavy plate steel reinforced at stress points

8.Replaceable liners throughout for maximum ease of maintenance

Working Principle:

The particles are drawn into the gap between the rolls by their rotating motion and a friction angle formed between the rolls and the particle, called the nip angle. The two rolls force the particle between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rolls. Some major advantages of stone roller crusher/roll crushers are they give a very fine product size distribution and they produce very little dust or fines. Stone roller crusher/ Roll crushers are effectively used in minerals crushing where the ores are not too abrasive and they are also used in smaller scale production mining of more abrasive metal ores, such as gold. Coal is probably the largest user of stone roller crusher/roll crushers, currently, though. Coal plants will use roll crushers, either single roll or double roll, as primary crushers, reducing the ROM coal. Usually, these stone roller crusher/roll crushers will have teeth or raised forms on the face of the roll. ( used for minerals and metal ores have smooth faced rolls).

 About Us

Henan Dajia Mining Machinery Co., Ltd. focuses on the design and manufacturing of complete preparation equipment, drying equipment, complete rotary kiln building material equipment and so on, and is especially equipped with the rich experience and powerful strength in producing the complete stone crusher, preparation equipment and complete equipment of cement production line. Besides, it has passed the strict international certification of quality system. Dajia mining machinery products have been widely used in mining, industry, mineral separation, chemical industry, water conservancy, road and bridge, highway structures and so on, and at present, it’s a leading local manufacturing enterprise with great scale and strength. The company has advanced processing and checkout equipment, and it has also established a thorough quality monitoring system. The company obtained ISO9001 certificate in 1997, and then passed the certification of 2000 version-change in November 2003.

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