Vertical Shaft Impactors (VSIs) are advanced crushing machines used to transform rocks into specification sand and aggregates, particularly for construction and industrial applications. The process involves using high-speed rotor technology and controlled energy to break down rocks into specific sizes and shapes required for sand production. Here’s an overview of how VSIs achieve this transformation:
Rocks or raw materials are fed into the VSI through a hopper and may pass through a conveyor system. The material is usually limited to specific sizes to ensure efficient processing and consistent output.
Within the VSI, a high-speed rotor spins at a controlled velocity, typically ranging from 1,300 to 2,000 RPM, depending on the design and desired material output. The rotor distributes the rocks toward specialized impact mechanisms, such as anvils or rock-lined chambers.
Rock-on-Rock Crushing: Some VSIs use a rock-on-rock configuration where the material is hurled at such a high velocity that it collides with other rocks within the crushing chamber. This natural collision process creates specification sand and helps minimize wear on the machine’s parts.
Rock-on-Anvil Crushing: Alternatively, VSIs can be equipped with metal anvils or similar impact surfaces. When the high-speed rocks strike these surfaces, they shatter into smaller pieces, achieving the desired particle size.
These different setups allow operators to fine-tune the machine based on the material type, product requirements, and operational efficiency.
A key feature of VSIs is their ability to shape the particles. The high-energy collisions within the machine reduce the rocks to uniform sizes and produce cubical or rounded particles, ideal for specification sand in concrete or asphalt mixes. This shaping reduces flaky or elongated particles, enhancing the material’s performance in engineered applications.
Many VSIs incorporate air separation or additional systems to remove fine particles or dust from the specification sand. This ensures the produced sand meets the precise gradation and cleanliness requirements for its intended use.
After the material passes through the VSI, it is discharged for additional screening or separation if needed. The final product—specification sand—meets industry standards for particle size distribution, shape, and texture, ideal for construction projects like road building, concrete production, and asphalt applications.
Vertical Shaft Impactors revolutionize rock processing by leveraging modern crushing and shaping technologies to deliver high-quality specification sand efficiently and reliably.
Shanghai Zenith Mineral Co., Ltd. is een toonaangevende fabrikant van breek- en maalapparatuur in China. Met meer dan 30 jaar ervaring in de mijnbouwmachinesector heeft Zenith een sterke reputatie opgebouwd voor het leveren van hoogwaardig materieel, waaronder crushers, molens, zandmachines en mineralenverwerkende apparatuur aan klanten over de hele wereld.
Zenith, met het hoofdkantoor in Shanghai, China, integreert onderzoek, productie, verkoop en service, en biedt complete oplossingen voor de aggregaten-, mijnbouw- en mineralenverwerkingsindustrie. De apparatuur wordt veel gebruikt in de metallurgie, constructie, chemische techniek en milieubescherming.
Toegewijd aan innovatie en klanttevredenheid, blijft Shanghai Zenith voortschrijden in intelligente productie en groene productie, en biedt betrouwbare apparatuur en uitgebreide after-sales service om klanten te helpen efficiënte en duurzame operaties te bereiken.
E-mail:info@chinagrindingmill.net
Whatsapp:+8613661969651
