What is the difference between jaw crusher and impact crusher?

The obvious difference between jaw crusher and impact crusher is the difference in structure and working principle. The former works in a curved extrusion type, and the material is crushed in the crushing cavity composed of the movable jaw and the fixed jaw; the latter using the principle of impact crushing, the material is repeatedly impacted and crushed between the rotor (brick hammer) and the counterattack plate. Below we focus on analyzing their differences in actual production.

 

I. Different scope of application

1. Material hardness

The jaw crusher can crush all kinds of soft and hard materials, and the compressive strength is between 300-350Mpa, while the impact crusher is suitable for crushing the materials with low toughness and brittleness of medium hardness and below, such as limestone, etc. If the material is hard , it will cause great damage to the wearing parts and shorten the service life.

2. Material particle size

Jaw crushers are generally used to crush bulk materials, and can allow ore below 1200mm to enter (depending on the type of equipment and the manufacturer). They are widely used in mines and gravel fields, and impact crushers are mostly used for processing For some small and medium-sized materials, the allowable range of feed particle size is not as wide as that of the jaw crusher.

 

II. The location of the production line is different

As we all know, in crushing, sand making, beneficiation and other production lines, jaw crusher is a commonly used primary crushing equipment, used for coarse crushing (fine jaw crusher can be used for medium or fine crushing), and impact crusher is commonly used secondary crushing equipment or tertiary crushing equipment for medium or fine crushing.

 

III. Different production capacity

In general, the production capacity of jaw crusher is greater than that of impact crusher. Generally speaking, the output of jaw crusher can reach 800-1200 tons per hour (depending on the manufacturer and product model), and the output of impact crusher is about 450-750 tons per hour.

 

IV. Different fineness of discharge

The jaw crusher is used as a coarse crusher, and its discharge fineness is relatively large, generally below 300-350mm (depending on the manufacturer and product model).

It should be noted that due to different material properties, there will be errors in the fineness of the output of the equipment.

V. Different granule types

The grain shape of the material after extrusion processing by the jaw crusher is not ideal, and the content of needle chips is large; the impact crusher is a product with good grain shape and fewer edges and corners of the finished product in the crushing equipment, and its grain shape is also better than that of cone crusher. machine.Therefore, in actual production, the jaw crusher is usually equipped with an impact crusher for further shaping, and the two are also common in the crushing production line.

 

VI. Different in price

Generally speaking, the sales volume and transaction volume of jaw crushers of many manufacturers are higher, and the main reason is the problem of price. Secondly, jaw crusher is a more traditional crushing equipment, and can meet the application requirements of users in terms of performance, quality, power consumption, etc., such a cost-effective equipment is easier to attract users' attention.

 

To sum up, when choosing crushing equipment, users should configure them reasonably according to production requirements in order to obtain ideal production capacity and benefits. If you want to know more about the crusher, welcome to call or online consultation, leave a message, Sinoroader will send professionals to answer your questions.