Comparison and analysis of advantages and disadvantages between hammer crusher and jaw crusher

Hammer crusher and jaw crusher are two common crushing equipment, which have certain differences in crushing principles, structural design, and applicable scope. Below, we will compare the hammer crusher and jaw crusher, and analyze their advantages and disadvantages.

1、 Crushing principle
1. Hammer crusher: mainly uses the high-speed impact of the hammer to crush materials. When the hammer rotates at high speed, it strikes, tears, and compresses the materials to achieve the purpose of crushing.

2. Jaw crusher: Adopting the principle of extrusion crushing, the angle between the moving jaw plate and the fixed jaw plate forms a V-shaped crushing chamber. The moving jaw plate moves back and forth under the drive of the eccentric shaft, thereby squeezing and crushing the material.

2、 Structural design

1. Hammer crusher: The structure is relatively simple, mainly composed of hammer head, rotor, sieve plate, impact plate and other components. The hammer head is a key component of a hammer crusher, which comes into direct contact with materials and therefore requires high wear resistance.

2. Jaw crusher: The structure is relatively complex, consisting of moving jaw plate, fixed jaw plate, frame, eccentric shaft, flywheel, adjustment device and other components. The jaw crusher needs to withstand a large crushing force, so the design needs to consider the strength and stability of the equipment.

3、 Applicable scope

1. Hammer crusher: suitable for crushing brittle materials with medium hardness or below, such as limestone, coal, gypsum, etc. Hammer crushers have advantages such as high crushing ratio, high output, and low energy consumption, but they are sensitive to the humidity and viscosity of materials and are prone to clogging the sieve plates.

2. Jaw crusher: suitable for crushing materials with high hardness, such as granite, basalt, iron ore, etc. The jaw crusher has the advantages of simple structure, convenient maintenance, and high crushing efficiency, but the crushing ratio is relatively small and the product particle size is uneven.

4、 Comparison of advantages and disadvantages

1. Advantages of Hammer Crusher:

-High crushing ratio and high yield.
-Low energy consumption and low operating costs.
-Simple structure and easy maintenance.

2. Disadvantages of hammer crushers:

-Sensitive to the humidity and viscosity of materials, it is prone to clogging the sieve plate.
-The hammer head wears out quickly and needs to be replaced regularly.

3. Advantages of jaw crusher:

-Simple structure and easy maintenance.
-High crushing efficiency and uniform product particle size.
-Suitable for crushing materials with high hardness.

4. Disadvantages of jaw crushers:

-The crushing ratio is relatively small.
-High energy consumption and high operating costs.

In summary, hammer crushers and jaw crushers each have their own advantages and disadvantages. In practical applications, the selection needs to be based on factors such as material characteristics, crushing requirements, and production scale. For materials with lower hardness and humidity, hammer crushers have better crushing efficiency and economy; For materials with high hardness and high humidity, jaw crushers are more suitable. In addition, when choosing a crusher, factors such as equipment quality and after-sales service need to be considered to ensure stable operation and a good user experience.