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The double roll crusher is a mechanical device with a simple structure, high crushing efficiency, and uniform particle size. It is widely used in many industries. However, when selecting and using it, its advantages and disadvantages need to be considered comprehensively according to its own production needs and material characteristics.
A double roll crusher is usually followed by a primary or secondary crusher and is used for secondary and tertiary crushing of various minerals.
The double-roller crusher has significant advantages in the crushing industry, and these advantages make it an ideal choice in a variety of application scenarios.
The double-roll crusher crushes materials through the squeezing and shearing action between the two rollers. It has a high crushing efficiency and can complete the crushing task quickly.
When processing materials of medium hardness, the double-roll crusher performs well and can provide stable crushing effects.
By adjusting the gap between the two rollers, the size of the discharge particle size can be easily controlled to meet the needs of different users.
The material crushed by the double-roll crusher has a uniform particle size, which is helpful for subsequent treatment and processing.
During the crushing process of the double-roll crusher, the friction and shearing action between the material and the roller are small, so the energy consumption is relatively low.
This helps to reduce production costs and improve economic benefits.
The design of the double-roll crusher is relatively simple. It consists of two rollers rotating in opposite directions, making maintenance and overhaul easier.
The rollers are usually made of wear-resistant materials and can withstand long-term crushing operations without being easily damaged.
Ore crushing: Roller crushers are used in mining to crush ores of various hardnesses, such as limestone, granite, iron ore, etc. Whether it is an open-pit mine or an underground mine, roll crushers can perform crushing operations well to meet the needs of mining production.
Slag processing: In the metallurgical and chemical industries, roll crushers are often used to crush various slags and chemical raw materials into the required particle size for subsequent smelting or processing.
The double-roll crusher performs crushing operations through rollers. The material enters between the rollers from the feed port and is crushed by extrusion. When the roller seats rotate towards each other, the material is rolled between the two rollers under the action of the friction force on the roller surface and its own gravity and is subjected to extrusion, impact, shearing, and kneading from the rollers. When the action of these forces is greater than the aggregation force between the crystal lattices of the object, the material breaks into small pieces and the purpose of crushing is achieved.
| Model | Roller Diameter (mm) |
Roller Length (mm) |
Feeding Size (mm) |
Capacity (t/h) |
Motor Power (kw) |
| 2PG-400X250 | 400 | 250 | ≤ 25 | 2-10 | 2*5.5 |
| 2PG-610X400 | 610 | 400 | ≤ 30 | 5-20 | 2*15 |
| 2PG-610X750 | 610 | 750 | ≤ 30 | 5-25 | 2*18.5 |
| 2PG-750X400 | 750 | 400 | ≤ 30 | 10-40 | 2*18.5 |
| 2PG-800X600 | 800 | 600 | ≤ 40 | 12-50 | 2*22 |
| 2PG-800X800 | 800 | 800 | ≤ 40 | 20-60 | 2*22 |
| 2PG-900X900 | 900 | 900 | ≤ 50 | 50-100 | 2*37 |
| 2PG-1200X900 | 1200 | 900 | ≤ 50 | 60-130 | 2*45 |
| 2PG-1200X1200 | 1200 | 1200 | ≤ 50 | 80-150 | 2*45 |
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