rock crusher for double roll,hard rock roller crusher
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hard rock roller crusher

The hard rock roller crusher run with one stable Roll and one active Roll. The movable roll provides relief by moving away form the Stationary Roll when uncrushable material is encountered and immediately resets to the original position.

features-hard rock roller crusher
1.The product can be classified into double roller crusher and four roller crusher according to the roller quality.
2.The products are widely used in grinding cement, quarry, coal and other fragile stuffs.
3.Hard Rock Roller Crusher with stable operation, easy maintenance, low cost, output size adjustable.

Working Principle of double roll crusher
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 rollers punch the particle from 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 roll crushers are they give a very fine product size distribution and they produce very little dust and powder. Rolls 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.often Coal is probably the largest user of roll crushers, currently, though. Coal plants will use roller crushers, double roll, as primary crushers, reducing the ROM coal. Usually, these crushers will have teeth or raised forms on the face of the roll. (Roll crushers used for minerals and metal ores have smooth faced rolls.)

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  • hard rock roller crusher