As a widely used secondary crushing equipment, impact crusher has always been the main component of mining machinery, and is popular with users due to its simple structure. The mainstream impact crusher products on the current domestic market are traditional ordinary impact crusher and European version impact crusher. What is the difference between the two? The following 5 aspects of the comparison will make it clear!

1. Cover opening device

Ordinary impact crusher: screw cover opening device, manually twisting the nut, time-consuming and laborious.

European version impact crusher: hydraulic lifting device, convenient replacement of wearing parts, more convenient maintenance.

2. Difference in plate hammer

Ordinary impact crusher: old straight plate hammer

European version impact crusher: "crescent-shaped" arc-shaped plate hammer

The crescent-shaped plate hammer is better, which can ensure the vertical impact of the material, with strong impact force and high crushing efficiency; the impact surface is also larger than the linear plate hammer and more durable.

3. Plate hammer fixing method

Ordinary impact crusher: fixed by pressure plate

European impact crusher: fixed by wedge

During operation, under the action of centrifugal force, the wedge fixing method can ensure that the faster the rotor speed, the more firmly the plate hammer is fixed, and the work is reliable and convenient to replace. This is currently a better fixing method for plate hammers, and most manufacturers generally adopt this fixing method.

Generally, crescent-shaped plate hammers are mostly fixed by wedges; straight plate-shaped plate hammers are mostly fixed by pressure blocks.

There are 3 types of plate hammer fixing methods: bolt fixing, pressure plate fixing and wedge fixing. For the differences between the three, please click:

The 3 types of plate hammer fixing methods are very different, and your production efficiency is closely related to it!

4. Difference in rotors

Ordinary impact crusher: lighter rotor

European impact crusher: heavier rotor

The heavy-duty rotor design and strict testing methods ensure high-quality rotors, so that the specially made heavy-duty rotors have higher moment of inertia, strong impact force and high crushing efficiency.

Under the same installed power, the production capacity of the European version is much greater than that of the traditional impact crusher.

5. Impact plate structure type

Ordinary impact crusher: mostly adopts zigzag shape

European impact crusher: mostly adopts arc shape

The zigzag impact plate has a simple structure, and the arc-shaped impact plate is more commonly used in the involute shape. The characteristic of this structure is that at each point of the impact plate, the ore is impacted in a vertical direction, so the crushing efficiency is higher.