The VSI-900-CR represents a sophisticated solution in tertiary crushing operations, specifically engineered for applications demanding high-quality cubical products and superior sand production. This stone crusher operates as a sand making machine in the final stage of crushing circuits, transforming material from secondary crushers into precisely shaped aggregates suitable for concrete production and various construction applications.
CONSTMACH designed this vertical shaft impact crusher to handle materials up to 45 mm in size, making it particularly effective for processing hard stones like basalt and granite. The machine's core mechanism revolves around a 900 mm diameter rotor that spins at adjustable speeds between 50 and 60 meters per second. This variable speed capability is what sets the VSI-900-CR apart, allowing operators to fine-tune performance based on the specific material characteristics and desired output specifications.
The dual motor configuration, featuring two 185 kW units, delivers robust power for continuous operation in demanding environments. This setup drives the rotor system to achieve production capacities ranging from 200 to 250 tons per hour, positioning the machine as a reliable workhorse for medium to large-scale operations. The 14,500 kg weight provides the necessary stability during high-speed operation, ensuring consistent performance and minimal vibration.
One of the most practical features of this VSI crusher is its four interchangeable crushing chambers. This design allows operations to adapt quickly to different feed sizes and tonnage requirements without extensive downtime. The chambers wear evenly and can be rotated or replaced systematically, extending the machine's operational life and reducing maintenance costs. The large symmetrical feed box ensures uniform material distribution across the rotor, which is critical for achieving consistent product quality and maximizing the crusher's efficiency.
The machine incorporates heavy-duty roller bearings that withstand the extreme forces generated during impact crushing. These bearings, combined with an automatic greasing system, significantly reduce maintenance intervals and extend component life. The automatic lubrication ensures that critical parts receive consistent protection, even during extended production runs, which is essential for operations running multiple shifts.
What makes this sand making machine particularly valuable is its high reduction ratio. The VSI technology transforms irregular particles from secondary crushing into well-shaped, cubical products that meet strict specifications for concrete aggregates and asphalt production. This capability eliminates the need for additional shaping equipment in many applications, streamlining the production process and reducing capital investment.
The VSI-900-CR serves industries where product shape and gradation are as important as capacity. Construction material producers, concrete manufacturers, and aggregate suppliers benefit from its ability to generate products that enhance concrete workability and strength. The machine's design philosophy prioritizes operational flexibility, allowing a single unit to serve multiple production scenarios through simple adjustments to rotor speed and chamber configuration.
This stone crusher integrates seamlessly into existing crushing plants, typically positioned after jaw and cone crushers in the circuit. Its compact footprint relative to its capacity makes it suitable for both stationary plants and mobile crushing operations. The straightforward operation and maintenance requirements mean that facilities can maintain high availability rates without specialized technical support, though proper training ensures optimal performance and longevity.