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VSI Stone Crusher Overview
VSI stone crusher is newly researched equipment, with international advanced level. Technology and modern processing equipment make it a leading role in this industry.
The newly-developed VSI (vertical shaft impact) stone crusher is designed by reputed German expert of Shibang and every index of SBM VSI stone crusher is in world’s leading standard. SBM VSI stone crusher incorporates three crushing types and changing feeding methods, so can be used as a crusher or a shaper. Thus, customers do not need to expand investment, they have a stone crusher and a shaper at a time. Moreover vsi stone crusher can be operated 720 hours continuously. Nowadays, SBM VSI stone crusher has replaced hammer stone crusher, roller stone crusher, roller ball mill, etc., and become the mainstream equipment in sand manking business.
SBM Vertical Shaft Impact Stone Crusher is the most advanced impact stone crusher in modern world. It introduces high quality roller bearing like Sweden SKF and America TIMKEN, which ensure the smooth running of main unit. Hydraulic system used in upper cap, it is easy and convenient to maintenance and replace spare parts. The feeding is our sole patent that using central feeding and central feeding with cascade feeding, the feeding method can change as per needed so as to satisfy customer’s different request.
VSI Stone Crusher Application
VSI stone crushers are widely applied in expressway and railway building, hydropower station construction, bridge and tunnel building, concrete batching plant, etc for crushing and gravel shaping. In the fine crushing section, VSI stone crusher is the substitute of impact crusher, and it is much better in terms of main performance indexes.
VSI Stone Crusher Main Features and Benefits
1. Advanced double-pump oil lubrication system guarantee shaft bearing lower temperature increase, longer life time, more reliable operation.
2. Main shaft is equipped with imported precision rolling bearing. It makes main shaft work stable, lengthen maintenance cycle, increase productivity.
3. Hydraulic lifting mechanism of upper cover can move away the cover easily, which saves man power during maintenance.
4. Over-vibration device is equipped. There will be alarm when vibration surpasses a stipulated figure. It will stop the stone crusher, in order to protect it.
5. Special dust-proof design for main shaft bearing fully avoid dust entering bearing lubrication part, which make sure the stone crusher work normally.
6. Special feed opening structure make it 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.
7. Shape of material-thronging device is better designed, which improve the utilization ratio.
8. Optimized arrangement design of wear resistant materials increase the service life of the machine by over 40%, thus decrease the cost by over 40%.
9. The mainframe is made with rivet hot technique, which enhances intensity of structure and tenacity, and ensures stable performance.
VSI Stone Crusher Working Principle
(1) Center Feeding:
Raw material falls down into feed hopper, then enter into impellor through central entrance hole. It is accelerated in high-speed impellor, and then is thrown out at speed of 60-75m/s. When it hits impact plate, it is crushed. Final products come downwards though outlet.
Raw Materials fall into the hopper and then through the feeding opening in the center enter into the high speed rotor which will throw out the materials with high speed. Materials firstly impact those materials that are free falling down. Then, materials strike the materials-liner in the vortex or the impact liner. Due to rebound, they will back to top of crushing cavity and then fall down. After that, the falling materials with materials shot from the impeller form a continuous materials curtain. Ultimately, crushed materials will be charged from the discharging opening.
(2) Ring Feeding:
Raw materials fall down into feed hopper, and then through ring, and is divided into two parts by material-dividing plate. One enters into impellor across the center of material-dividing plate,then is accelerated and thrown out. The other falls down from the outside of material-dividing plate. Material, which is thrown out by impellor at a speed of 60-75m/s, hits material that coming down from the outside of material-dividing plate. In this way, material is crushed.
VSI Stone Crusher Main Parts
VSI stone crusher is made up of first stage impact curtain with anvils, impact crutain adjusting rods, second stage impact curtain with anvils, rotor, liner plate, blow bar, wedge lock assembly, discharge opening, third stage impact plate, back-up bar and so on.
