Why Vertical Impact Crushers Are Favoured by Users

Crushers are now commonplace equipment within the mining industry, with diverse types available such as jaw crushers, impact crushers, and cone crushers. These machines are favoured by users for their high crushing ratios, excellent finished particle shape, low energy consumption, and ease of maintenance. Below, we introduce the vertical impact crusher and explore how it differs from other equipment.

First, let us examine the working principle of the vertical impact crusher:

Material enters the feed hopper and accelerates through the feed opening into the rotating impeller. Ejected from the impeller, it first collides with another portion of material rebounding from the free fall. Together, they strike the vortex-shaped liner (stone-on-stone) within the vortex chamber, where they are first rebounded towards the top of the crushing chamber. before deflecting downward. Here, it collides with material ejected from the rotor's flow channels, forming a continuous material curtain. The crushed material is finally discharged through the lower outlet. Screening equipment controls the final product size to meet specifications.

It is precisely due to this operating principle that vertical shaft impact crushers are extensively employed for the fine crushing of raw materials and clinker in cement plants. They are also used for the fine crushing of medium-hard materials such as dolomite, flint clay, lead-zinc ore, serpentine, blast furnace slag, coal gangue, phosphate rock, and other medium-hard materials. It is particularly suited for producing manufactured sand from hard limestone, dolomite, granite, and basalt, or for processing aggregate for road surfacing.

Vertical shaft impact crushers are extensively employed across these industries due to their performance advantages. The finished particles produced by vertical shaft impact crushers exhibit excellent shape. Furthermore, these crushers are suitable for processing medium-hard and super-hard materials, with minimal impact from moisture content during processing, which can reach approximately 8%. Regarding maintenance, this crusher utilises the principle of stone-on-stone impact, featuring self-lining rotors with low wear and convenient servicing.

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