VSI Crusher

VSI Crusher

Gulin VSI crusher is mainly used as sand making machine in manufactured sand industry. It is designed by reputed German expert of Gulin, every index of VSI crusher is in world’s leading standard. The newly-developed VSI (vertical shaft impact) crusher is designed to incorporate three crushing types and change feeding methods, so it can be used as a crusher machine and a stone shaping machine. It has replaced hammer crusher, roller crusher, roller ball mill, etc. and become the mainstream equipment in sand making business.

Features and Benefits

• Advanced double-pump oil lubrication system of the VSI crusher guarantee shaft bearing lower temperature increase, longer life time, more reliable operation.
• Main shaft is equipped with imported precision rolling bearing. It makes main shaft work stable, lengthen maintenance cycle, increase productivity.
• Hydraulic lifting mechanism of upper cover can move away the cover easily, which saves man power during maintenance.
• Over-vibration device is equipped. There will be alarm when vibration surpasses a stipulated figure. It will stop the VSI crusher machine, in order to protect it.
• Special dust-proof design for main shaft bearing fully avoid dust entering bearing lubrication part, which make sure the VSI crusher machine work normally.
• Special feed opening structure make the VSI crusher machine possible that center feeding and ring feeding comes together, in order to meet requirements of different stones. In addition, this equipment can not only crush stone, but also iron.
• Shape of material-thronging device is better designed, which improve the utilization ratio.
• Optimized arrangement design of wear resistant materials increase the service life of the machine by over 40%,thus decrease the cost by over 40%.
• The main frame of the VSI crusher is made with rivet hot technique, which enhances intensity of structure and tenacity, and ensures stable performance.

Working Principle

VSI Impact Crusher Working Principle: After materials are fed into the hopper, they are through a central feeding hole, thrown to the impellers, which are rotating at a high speed. Then the material are accelerated and thrown out of impeller area. There part of materials, first, impact on the other part of materials, which are falling down, and then, they together strike on the material layers or on impact blocks. Due to rebound, they will back to top of crushing cavity and again be shot back to strike on another part of materials which are shot from the impeller flow and form a continuous material curtain. The final products will be discharged from the discharge open at the bottom.

VSI Crusher Specification