The VSI6X Series Vertical Shaft Impact Crusher is a new type of sand making and crushing equipment that incorporates years of R&D experience and technological concepts. It features an entirely new four-port impeller design structure and a special sealing structure to prevent oil leakage from the bearing cylinder, holding multiple national patent technologies. Characterized by energy efficiency, long service life, and wide application, it assists large sand plants in moving towards scaled and centralized production to meet national requirements for environmental protection and production capacity.
Application Fields:
Metallic and non-metallic ores, building materials, manufactured sand, metallurgical slag.
Applicable Materials:
River pebbles, granite, basalt, iron ore, limestone, calcite, quartz, diabase, coal, calcium carbide, etc.
Working Principle:
The motor drives the main shaft of the bearing cylinder’s transmission section for high-speed rotation. Simultaneously, the rotor rotates at high speed with the main shaft. Material entering the impeller is accelerated and then ejected into the crushing chamber, where it impacts and abrades against the material liner formed within the chamber. The kinetic energy gained by the accelerated material is converted into the energy required for crushing or shaping the material. The material repeatedly cycles within the crushing chamber, undergoing multiple stages of crushing and shaping under the influence of the surrounding gas vortex, thereby achieving continuous crushing and shaping. The finished material is discharged from the lower part of the machine. This crushing method is known as “rock-on-rock” and is primarily used for material shaping.
In addition, the equipment is also equipped with a “rock-on-iron” crushing method. Unlike the rock-on-rock method, in this mode, the material ejected from the rotor impacts the counter-blocks installed in the crushing chamber. The energy gained by the accelerated material is converted into the energy needed for crushing upon collision with the counter-blocks. After the impact, the material is discharged directly from the lower part of the machine, making multiple-cycle crushing in the chamber impossible. This crushing method is mainly suitable for applications where the primary goal is crushing (to provide a high crushing ratio).
Product Features:
Fast Crushing Mode Conversion: The optimized crushing chamber structure allows for the quick switch between the two crushing modes: rock-on-rock and rock-on-iron.
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- “Rock-on-Rock” adds a material layer divider, which forms a dense and stable rock layer. Even when processing medium-to-high hardness rocks, this mode yields more cubical finished products.
- “Rock-on-Iron” features an optimized impact block installation angle to reduce energy loss and achieve a higher crushing ratio.
Key Component Performance Enhancement:
Key components such as the impeller, bearing cylinder, and lower machine body have been completely redesigned:
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- The impeller adopts a four-port design to increase material throughput and the probability of material-on-material impact.
- The bearing cylinder employs a unique ventilation and dust-proof device and sealing structure to prevent dust from entering and causing oil leakage from the lower bearing cap.
- The lower machine body structure is changed from a “well” shape to a “cross” shape to prevent material from clogging the discharge channel.
Intelligent Control and Thin Oil Lubrication:
It utilizes thin oil lubrication and is equipped with an air cooling system, controlled by a PLC and intelligent instrumentation. This allows for fully automatic lubrication control with adjustable lubrication temperature, providing ideal working conditions for the bearings.
- User-Friendly and Easy Maintenance:It comes standard with a self-lifting boom that shares an axis with the lifting arm, making maintenance of the impeller and bearing cylinder convenient. A hydraulic jack is used to lift the feed hopper for easy maintenance. The guardrail height is lowered to prevent interference when the feed hopper is swung open.
