Impact Crusher And European Impact Crusher

Impact Crusher

The difference between impact crusher and European impact crusher

As a widely used second-breaking equipment, impact crusher has always been the main component of mining machinery, because the structure is simple and the price is low, which is welcomed by users. At present, the mainstream impact crusher products in the domestic market include traditional impact crushers and European impact crushers. What is the difference between the two?

1, cover device

  1. The traditional impact crusher: screw open cover device, manually twist the nut, time-consuming and laborious.
  2. European version of impact crusher: hydraulic lifting device, convenient replacement of wearing parts, maintenance more convenient.

2, board hammer difference

  1. Traditional Impact Crusher: Vintage Straight Shaped Plate Hammer
  2. European version of impact crusher: "Crescent" arc-shaped plate hammer

The crescent-shaped plate hammer is better, it can guarantee the vertical impact of the material, the impact force is great, the crushing efficiency is high; the impact surface is also bigger and more durable than the straight plate hammer.

3, board hammer fixing method

Traditional impact crusher: pressure plate fixation

European version impact crusher: wedge fixed

During work, under the action of centrifugal force, the wedge fixing method can ensure the faster the rotor speed, the more stable the hammer is fixed, and the work is reliable. It is more convenient to replace the wedge. This is a better way to fix the hammer. Currently, most manufacturers use this kind of fixing method.

Impact Crusher

In general, the crescent-shaped plate hammers are often fixed with wedges; the straight plate-shaped plate hammers are often fixed with pressure pieces.

There are three types of hammer fixing methods: bolt fixing, pressure plate fixing and wedge fixing.

4, rotor difference

Traditional impact crusher: lighter rotor

European version of impact crusher: rotor is heavier

Heavy-duty rotor design and strict detection methods ensure high-quality rotors, making special heavy-duty rotors with higher rotational inertia, strong impact force, and high crushing efficiency.

With the same installed power, European production capacity is much larger than the traditional impact crusher.

5, impact board structure type

  1. Traditional impact crusher: more used folding line
  2. European version of impact crusher: more use of circular arc

The zigzag impact board has a simple structure, but it cannot guarantee more effective impact crushing of the ore. The arc-shaped impact board, which is more commonly used, has an involute shape. The feature of this type of structure is that the ore is impacted in a vertical direction at various points of the impact board, and thus the crushing efficiency is high.

6, the number of impact

  1. Traditional impact crusher: 2
  2. European version impact crusher: 2 or 3

The European version of the three-cylinder impact crusher added a third impact board, producing smaller, more uniform grain sizes, and is ideally suited to the operation of crushing and crushing of various ores.

7, the difference between the number of cavity

  1. Traditional impact crusher: only two cavity type
  2. European version of impact crusher: two-cavity, three-cavity models have

The number of crushing chambers corresponds to the number of impact plates. The two types of crushers in the European version meet the crushing requirements of most rough, medium and fine crushing operations.

8, discharge port adjustment device

  1. Traditional impact crusher: manual adjustment
  2. European version impact crusher: hydraulic adjustment

The impact crusher adopts a hydraulic adjustment device, and the simple operation can make the distance between the first and the second impact plates and the rotor become larger or smaller.

European version of the third stage impact adjustment

Adjustment step (this is to adjust the spacing, if reversed): First loosen the fixing screw of the adjusting washer, and then the hydraulic cylinder moves to push the spring inside, so that the distance between the counterplate and the rotor becomes smaller, the outer gasket is installed inside, and then the hydraulic cylinder is released until the limiting board With the gasket inside.

9, there is no square steel

Traditional impact crusher: square steel on the frame

European version of impact crusher: no square steel frame, simplifying the design structure.

The square steel is used to fill the gap between the front guards. The European side impact crusher is closely connected with the side guards. There is no gap and no square steel is required.

10, with or without a screen

Three-cylinder impact crusher does not, only the two-cavity large feed inlet of the European version of the impact crusher. Reason: The two-chamber European impact crusher has a relatively large material inlet, and the two counter-attacks are relatively close, almost parallel to the material inlet. The role of the chain screen is to prevent the machine from flying out of the mine during the process of crushing.

11, bearing on the frame

Traditional impact crusher: more welding

European version of the impact crusher: the overall cast steel structure to ensure the stability of the machine.

12, price difference

Traditional impact crusher and European impact crusher, the same size model, the difference between the two, the size of the traditional crushing crusher and the smaller size of the European version of the impact crusher is roughly the same price.

The above comparison between conventional impact crusher and European impact crusher is based on the general situation of impact crusher equipment on the market. It does not exclude that some manufacturers have made other improvements in product design and structure. Users should choose the right type and type of impact crusher products according to their own production requirements.

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