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Double roller crusher

Double roller crusher

Applied MaterialFeeding Size≤40mm

Device ConfigurationProcessing Capacity5-50t/h

Applied Material:River pebble, calcite, quartz, glass, marble, pebble, bentonite, iron ore, bluestone,etc.

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Product introduction

Double Roller crusher, a kind of mining machinery, is also called double roll crusher. It is mainly used for crushing ore. This machine has the advantages of small volume, large crushing ratio (5-8), low noise, simple structure and convenient maintenance. The crushed material has uniform particle size, low over crushing rate, convenient maintenance, sensitive overload protection, safety and reliability. It is suitable for coal, metallurgy, mining, chemical industry, building materials and other industries. It is more suitable for crushing raw coal (including gangue) in large coal mines or coal preparation plants.

Performance features

1.It has the advantages of compact structure, light weight, small volume, simple structure, small occupied space and convenient operation and maintenance,stable operation, high efficiency and energy saving, high crushing efficiency and adjustable discharge particle size.

2.Double roll crusher is equipped with dust-proof plate, which has good sealing performance, avoids the splashing of small materials after crushing, with less dust, low working noise and greatly improved working environment.

3. The grinding roller body is optimized again, and it is not necessary to change the grinding roller body for the whole life of the equipment. However, the old type roller pair machine needs to be disassembled and overhauled after one year's use.

4.A replaceable wear-resistant lining plate is installed on the grinding roller of the double roll crusher. The wear-resistant lining plate is made of domestic advanced wear-resistant materials, which has the advantages of long service life, not easy to be damaged and convenient for maintenance. The continuous service life can reach more than one year. When the wear is serious, the cover can be replaced by moving the cover. The maintenance quantity is small, the cost is low, this is any domestic other type crusher is incomparable.

5.The roller crusher is equipped with safety protection device. When there is an accident of metal iron pieces entering the crushing chamber, the protective device will act and the iron parts will leak out and the equipment will operate normally.

6.The gap of abrasive roller body of the opposite roller crusher can be adjusted from 1 mm to 20 mm. After adjusting the gap according to the requirements of crushing particle size, the crushing particle size can be controlled reliably and discharged from the bottom of crushing chamber with ideal particle size.

Working principle

Two groups of separately driven rollers are used for roll breaking. After the crusher is started, the two roller wheels rotate in opposite direction to form a "V" shaped crushing chamber. The material is fed into the crusher from the hopper in a certain amount, and the tangential direction enters the middle of the two rollers. Because the gap between the rollers is small and the system strength is far greater than that of the materials (the roller spacing will not be increased or the roll path motion state will not be changed due to the high hardness of the material) The material in the middle of the two rollers will be crushed into a small particle size with the rotation of the opposite roller, and then enter the bottom of the machine with the rotation direction of the roller, and flow out of the machine from the inclined material trough to complete the whole crushing process.

Technical data

Model Feed size(mm) Discharge size(mm) Yield(t/h) Motor power(kw) Weight(t)
2PG-400*250 ≤25 1-8 5-10 11 1500
2PG-610*400 ≤40 1-20 13-35 30 4500
2PG-750*500 ≤40 2-20 15-40 37 12250
2PG-900*500 ≤40 3-40 20-50 44 14000


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