How Does the VSI Series Vertical Shaft Impact Sand-Making Machine Work?
The VSI series vertical shaft impact sand-making machine operates on an advanced 'stone-on-stone' impact crushing principle. Material enters through the feed inlet, falls into the feed hopper, and passes through the central feed hole into a high-speed rotating rotor. Inside the rotor, the material is accelerated to tens of times the force of gravity and then thrown out at high speed. It collides with the material lining within the crushing chamber, causing breakage along natural grain and cleavage surfaces. This self-lining method minimizes wear parts consumption and ensures excellent finished particle shape. The series comprises six models: VSI215, VSI216, VSI217, VSI218, VSI228, and VSI229. Processing capacities range from 10 tph for the VSI215 to 600 tph for the VSI229. Motor power spans 55 kW to 500 kW, and maximum feed particle sizes are between 40 mm and 55 mm. Equipment weights vary from 6,000 kg to 14,826 kg.
The VSI Series is widely used in the production of high-quality manufactured sand and aggregates for concrete and asphalt. It effectively processes hard, abrasive rocks as well as soft, wet, and sticky materials. The stable and controllable product gradation ensures consistent finished product quality, which is critical for construction projects requiring precise sand specifications. The low contamination rate and cubic particle shape make it suitable for ready-mix concrete plants, asphalt mixing plants, and precast concrete manufacturers. Additionally, the machine's ability to handle various feed materials reduces the need for multiple crushing stages, streamlining production lines and lowering overall operational complexity.
Compared to other models in the series, the VSI229 stands out with its highest processing capacity of 445-600 tph and a powerful 500 kW motor, making it ideal for large-scale operations. The VSI215, with a 55 kW motor and 10-50 tph capacity, is suited for smaller plants or mobile applications. The VSI216 and VSI217 offer mid-range capacities of 51-121 tph and 122-192 tph respectively, balancing output and energy consumption. The VSI218 and VSI228 provide capacities of 193-250 tph and 271-444 tph, catering to medium-to-large production needs. All models share the same core working principle and self-lining technology, ensuring consistent product quality across the range. The key differentiators are throughput, power requirements, and physical dimensions, allowing customers to select the optimal model for their specific production targets and site conditions.
- Self-lining crushing technology reduces wear parts consumption and operating costs per ton.
- Stable product gradation with low contamination rate ensures consistent sand quality.
- Wide material adaptability handles hard, abrasive, soft, wet, and sticky feeds.
- Quick and easy replacement of worn parts minimizes downtime.
