Disadvantages and Precautions of Vertical Impact Crushers

Vertical impact crushers (commonly abbreviated as vertical shaft impact crushers or VSI) are highly efficient fine crushing devices that utilise a high-speed rotating rotor to accelerate and project materials, causing them to collide with fixed liners (or other materials) through intense impact, collision, and friction to achieve crushing.

Main Disadvantages and Precautions:  

1. Wear Issues: High-speed impact causes rapid wear of wear-prone components such as the throwing head and peripheral liners, resulting in a significant proportion of operating costs being attributed to wear-resistant component consumption. High-quality wear-resistant materials and optimised design are essential.  

2. Sensitivity to Material Moisture:  

Highly viscous or moisture-rich materials are prone to adhesion and blockage at the feed opening and within the crushing chamber.

3. Limited processing of extremely hard materials: For extremely hard materials such as quartzite and corundum, wear increases sharply, reducing economic efficiency.  4. Noise and dust: High-speed impact generates significant noise and dust, so noise reduction and dust control measures are required.  

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