There are significant differences between jaw crushers and impact crushers in many aspects, including structure, working principle, application scope, processing capacity, discharge fineness, and price. At the same time, there are also certain differences in the aggregate crushing production line.
The difference between the structure and working principle of jaw crusher and impact crusher
1. Jaw crusher: The crushing cavity is mainly composed of two jaw plates, the movable jaw and the static jaw, and the material crushing operation is completed by simulating the movement of the two jaws of animals. Its working principle is that the movable jaw makes periodic reciprocating motion against the fixed jaw around the suspension axis. When the movable jaw approaches the fixed jaw, the material is crushed by the combined action of crushing, splitting bending, and breaking; when the movable jaw leaves the fixed jaw, the crushed ore is discharged under the action of gravity.
2. Impact crushing: The principle of impact crushing is adopted, and the material is repeatedly impacted and broken between the rotor (plate hammer) and the impact plate. When working, the motor drives the rotor to rotate at high speed. When the material enters the plate hammer action area, it is crushed by impact with the plate hammer and then is thrown to the impact device for crushing again. This process is repeated until the material reaches the required particle size.
The difference between the application scope of jaw crusher and impact crusher
1. Jaw crusher: widely used in crushing various ores and bulk materials in mining and smelting, building materials, highways, railways, water conservancy, and chemical industries. It is usually used as primary crushing equipment in crushing, sand making, mineral processing, and other production lines, and is used for coarse or medium crushing.
2. Impact crushing: It is mainly used in the second or third crushing stage of the crushing production line, as the "backup crushing equipment" for the stone processed by the jaw crusher. It is suitable for crushing various coarse, medium, and fine materials, such as granite, limestone, concrete, etc., but it is not suitable for processing extremely hard materials because the loss of wearing parts will be great.
The difference between the processing capacity and discharge fineness of jaw crusher and impact crusher
1. Processing capacity: Generally speaking, the production capacity of jaw crushers is greater than that of impact crushers. Specifically, the hourly output of the jaw crusher can reach 600-800 tons, while the hourly output of the impact crusher is about 260-450 tons.
2. Discharge fineness: The jaw crusher is mainly used for coarse crushing, and the discharge fineness is relatively large, generally below 300-350mm (depending on the manufacturer and product model); while the impact crusher is used as an intermediate crushing or fine crushing equipment. The discharge fineness is small. In addition, the discharged particles of the impact crusher have good shape, the finished product has fewer edges and corners, and the particle shape is better than that of cone crushing and other equipment.
The price of jaw crusher and counterattack crusher
Since the jaw crusher is a traditional crushing equipment with a simple structure, easy manufacturing, and reliable operation, it is relatively cost-effective and has a large sales volume and transaction volume. The price of counterattack breakers may be relatively high due to their high technical content and processing accuracy requirements.
To sum up, there are obvious differences between jaw crushers and impact crushers in terms of structure, working principle, application scope, processing capacity, discharge fineness, and price. When choosing to use, comprehensive consideration needs to be based on specific production needs and material characteristics.
Baichy Machinery is a factory supplier of mining machinery, mainly focusing on stone crushers, powder grinding mills, and mineral beneficiation plants. We can offer you a free design and completed solutions according to your project.
Baichy Heavy Industry has grown into a high-tech mining equipment comprehensive enterprise, integrating R&D, manufacturing, sales, and after-sales service, Passing ISO9001:2015 quality management system certifications. The main products are mobile jaw crushing plants, construction waste crushing plants, PE jaw crushers, VSI sand-making machines, Symons cone crushers, single-cylinder hydraulic cone crushers, PCX high-fine crushers, grinding mills, ball mills, and full sets of beneficiation equipment with an excellent level.
