VSI-1000-OR Vertical Shaft Impact Crusher 250-3000 T/H

The VSI-1000-OR represents CONSTMACH's advanced solution for producing high-quality sand and achieving superior particle shaping in crushing operations. This vertical shaft impact crusher, commonly known as a sand making machine, delivers exceptional performance in tertiary crushing applications where material fineness and shape are critical. With a production capacity ranging from 250 to 300 tons per hour, this equipment serves as the final stage in crushing circuits, transforming secondary crusher output into precisely shaped, cubical aggregates suitable for concrete production and various construction applications.

Operating as a tertiary stage stone crusher, the VSI-1000-OR accepts materials up to 90mm in size from secondary crushing units. This makes it particularly effective for processing hard stones like basalt and granite, which are notoriously difficult to shape using conventional crushing methods. The machine's working principle centers around a high-speed rotor that accelerates material particles and directs them against stationary anvils, creating rock-on-rock or rock-on-iron crushing action. This process not only reduces particle size but fundamentally alters the shape of aggregates, eliminating elongated and flaky particles that compromise concrete strength and workability.

The variable speed impeller stands out as one of the most important features of this VSI crusher. Operators can adjust rotor speeds between 50 and 60 meters per second, allowing precise control over the crushing process based on feed material characteristics and desired product specifications. This adjustability proves invaluable when processing different stone types or when production requirements shift between projects. The Ø975mm rotor diameter, powered by dual 200kW motors totaling 400kW, generates sufficient kinetic energy to fracture even the hardest materials while maintaining consistent throughput.

CONSTMACH engineered the VSI-1000-OR with four interchangeable crushing chambers, providing remarkable operational flexibility. Each chamber configuration accommodates different feed sizes and tonnage requirements, enabling producers to optimize the stone crusher for specific applications without extensive downtime or complex modifications. The large symmetrical feed box ensures even material distribution across the rotor, preventing unbalanced loading that could cause premature wear or mechanical failure. This design consideration extends equipment life and reduces maintenance interventions.

Durability and reliability define this sand making machine's construction. Heavy-duty roller bearings support the high-speed rotor, handling both radial and axial loads generated during operation. The automatic greasing system eliminates manual lubrication tasks and ensures consistent bearing protection, reducing the risk of catastrophic failure due to inadequate lubrication. At 15,000 kilograms, the robust frame absorbs operational vibrations and provides a stable platform for the crushing mechanism, contributing to both product quality and equipment longevity.

The high reduction ratio achievable with the VSI-1000-OR allows producers to generate significant quantities of fine material from each pass through the machine. This characteristic makes it indispensable in operations where sand production is the primary objective or where specifications demand a high percentage of minus-5mm material. The vertical shaft impact crusher's ability to produce cubical particles simultaneously addresses another critical requirement in modern aggregate production, as cubical shapes pack more efficiently and create stronger bonds in concrete mixes compared to elongated particles.

CONSTMACH's vertical shaft impact crushers have earned recognition across global markets for their consistent performance in demanding applications. The VSI-1000-OR continues this tradition, offering producers a reliable tool for transforming raw crushed stone into premium aggregates that meet stringent quality standards. Whether operating in stationary plants or mobile crushing configurations, this equipment delivers the combination of production capacity, particle shaping capability, and operational flexibility that modern aggregate producers require to remain competitive in an increasingly quality-focused market.