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Vertical Shaft Impact Crusher vs Impact Crusher: Pros and Cons in Sand Making

Jul 24, 2025

In the sand making and aggregate processing industry, choosing the right equipment is crucial for achieving optimal production efficiency and product quality. Two commonly used machines, the Vertical Shaft Impact Crusher (VSI Crusher), also known as a stone shaping machine, and the Impact Crusher, are often compared for their performance in sand making and stone shaping. This article will detailedly analyze the advantages and disadvantages of these two crushers in sand making, helping you make an informed decision.

3356 - Vertical Shaft Impact Crusher vs Impact Crusher: Pros and Cons in Sand Making

Working Principle Differences

The Vertical Shaft Impact Crusher operates on two main working modes: “stone-on-stone” and “stone-on-iron”. The “stone-on-stone” mode is particularly suitable for processing medium-hard to hard and highly abrasive materials such as basalt, producing well-shaped products with excellent particle uniformity. The “stone-on-iron” mode is more appropriate for materials with medium hardness or lower and low abrasiveness, like limestone, offering high production capacity and efficiency.

On the other hand, the Impact Crusher crushes materials through the impact force generated by high-speed rotating rotors. Materials enter the crushing chamber and collide with the hammers, then rebound to the impact plates for secondary crushing. This process is repeated, and the discharge granularity is controlled by the grates, ensuring uniform and high-quality finished products.

VSI crusher:

Impact crusher:

Feed and Discharge Granularity

The Vertical Shaft Impact Crusher has a feed size limit of less than 50mm, and its discharge granularity can be flexibly adjusted within the range of 0-5mm, making it ideal for producing fine sand and shaping aggregates.

The Impact Crusher can handle larger feed sizes, with a maximum limit of 800mm. Its finished product granularity ranges from 3-60mm, which is suitable for producing various sizes of aggregates for construction projects.

Processing Capacity

In terms of processing capacity, the Vertical Shaft Impact Crusher shows excellent performance in both sand making and shaping modes. In sand making mode, its hourly output ranges from 50-498t/h, while in shaping mode, it reaches 90-585t/h. This high efficiency is attributed to its deep cavity impeller design and integration of a programmable logic controller for remote computer control, ensuring convenient and efficient operation.

The Impact Crusher also has an impressive hourly output range of 30-800t/h. Its optimized cavity design makes the structure more compact with strong rigidity, and the rotor has a large moment of inertia, effectively improving work efficiency. However, it should be noted that the Impact Crusher has better adaptability to large feed sizes.

Application Scenarios

The Vertical Shaft Impact Crusher excels in the quality of finished products. Its products are uniform, with low needle-like, flaky particles and stone powder content. They are free of cracks and fine lines, and the fineness modulus can be flexibly adjusted, making it very suitable for artificial sand making and stone shaping.

The Impact Crusher meets construction standards with its beautiful discharge particle shape and low powder content. It is especially suitable for crushing limestone, but sometimes the powder content is relatively high. According to production experiments, the sand making rate of the Impact Crusher is about 30%, which can basically achieve the sand making effect. However, it should be noted that the Impact Crusher is only suitable for soft rock crushing; hard rocks will accelerate the wear of the equipment’s wearing parts and increase maintenance costs.

Pros and Cons Summary

Vertical Shaft Impact Crusher Advantages:

Excellent finished product quality with uniform particles, low needle-like and flaky content, and low stone powder content.

Suitable for both artificial sand making and stone shaping, with adjustable fineness modulus.

Higher production capacity in both sand making and shaping modes.

Equipped with advanced control systems for convenient and efficient operation.

Vertical Shaft Impact Crusher Disadvantages:

Limited feed size, requiring pre-crushing for larger materials.

May have higher initial investment compared to Impact Crushers.

Impact Crusher Advantages:

Can handle larger feed sizes, reducing the need for extensive pre-processing.

Suitable for medium hardness materials and meets standard construction requirements.

Lower initial investment, suitable for users with budget constraints.

Good performance in crushing soft rocks like limestone.

Impact Crusher Disadvantages:

Lower sand making rate compared to Vertical Shaft Impact Crushers.

Higher powder content in finished products, which may require additional processing.

Not suitable for hard rock crushing, as it leads to increased wear and maintenance costs.

How to Reduce Powder Content in Impact Crusher Output?

If you mainly need aggregates and don’t want too much powder sand, you can appropriately reduce the feed size, adjust the discharge port size to reduce the crushing ratio, and lower the rotation speed. These measures can improve the problem of high powder content to a certain extent. When configuring the production line, you can consider using a large discharge port for the Impact Crusher to produce the required particle size and perform multiple return crushing to reduce the powder output rate.

In conclusion, the Vertical Shaft Impact Crusher is the first choice for users with sand making needs or those who want finer discharge particle size; while for users with medium material hardness, hoping to save initial investment and meet standards, the Impact Crusher is more suitable. Choosing the right equipment depends on specific production needs, material characteristics, and budget considerations.