Vertical shaft impact crushers (VSI) have a wide application area in mining around the world, especially in aggregate production. In the vertical shaft crusher, the grains are thrown towards the crusher walls by the rotating at high speed and are broken under impact. Thanks to the adjustable rotor speed, different finenesses can be obtained by crushing at different energy levels.
Vertical shaft crushers that emerged as a result of the idea of crushing fine material with low operational cost. Especially in aggregate production, cubic shaped products play an important role compared to cone crusher, while fine material production is higher. Due to its design, the vertical shaft crusher, which consists of a dispersive rotor and crushing chamber, performs the size reduction process by ensuring that the grains collide with each other and the crusher wall at high speeds.
While some of the material fed to the crusher goes directly to the rotor, some of it is directed to the crushing zone as a result of overflow (cascade flow). As a result of the collision of the grains leaving the rotor with the grains coming with the cascade flow, a grain cloud emerges in the crushing zone. Due to high-speed collisions, this particle cloud does not leave the breaking zone immediately and repeated crushing occurs during the process.
The VSI-1000 vertical shaft open rotor crushers produced by Fabo are one of the most ideal crusher types preferred by medium and large enterprises to obtain fine materials in the 0-5mm range, thanks to their wide mouth opening, 100 mm feeding size and up to 400 tons of production capacity per hour. In addition, the Fabo VSI-1000 can last longer thanks to the special cast linings against abrasion and significantly reduce the production cost of the users.
