VSI Sand Making Machine

VSI sand making machine (also named VSI vertical shaft impact crusher) is a new generation of sand making machine with international advanced level newly and successfully developed in our company. Long-term technical deposition, excellent manufacturer of modernized processing equipment guarantee the leading position of VSI sand making machine in the industry. 
VSI sand making machine is the latest achievement designed by German authoritative experts through combining the working conditions in China. VSI Sand Making Machine is high-performance exclusively-produced sand-making device having advanced world level. The sand maker is especially used for providing high-quality sandstone aggregate for expressway, high-speed railway, high-rise buildings, city planning, construction of dam for hydropower plant and concrete mixing plant. VSI Sand Making Machine is the first choice in man-made sanding and stone shaping field. VSI Sand Making Machine is applicable to fine crushing technology at anterior section of grinding in mining field, material crushing in industries such as building material, metallurgy, chemical industry, mine ,refractory materials, cement and grinding, high abrasive and secondary disintegration and crushing, desulfidation of thermal power and metallurgy industry, steel scrap and builders rubbish crushing and other environmental protection project and production of glass, quartz sand and other high-purity material.

Features of VSI Sand Making Machine:

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, increases 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 machine, 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 machine work normally.
6. Special feed opening structure makes it possible that center feeding and ring feeding comes together, in order to meet requirement of different stones. In addition, this equipment can not only crush stone, but also iron.
7. Shape of material-through device is better designed, which improve the utilization ratio.

Working principle of VSI Sand Making Machine:

Full central feeding: material drops into feed hopper of sand maker, enters swing wheel rotating at high speed through central feeding hole; it is rapidly accelerated in swing wheel and its accelerating speed can reach several dozen times of acceleration of gravity; it is then ejected from the swing wheel at high speed; firstly it is pounded with another rebounded material which drops freely, then all of them are pounded onto material lining (Using stone to hit stone) or reaction block (Using stone to hit iron block) and are rebounded and obliquely impacted onto top part of vortex cavity; its movement direction is changed to move downward; it is then
pounded with material ejected form flow passage of the impeller to form continuous  material curtain. Thus, one block of material is pounded, fractioned, grinded and crushed in vortex crushing cavity for two times to many times. Crushed material is discharged from the discharge opening at the lower part.
Central feeding accompanied with annular cascade feeding: material drops into feed hopper of sand maker, drops through annular hole. It is then divided into two strands of material by material distributing plate: one of them enters swing wheel rotating at high speed through material-distributing panel; the other drops from the surrounding of material-distributing panel. Material entering swing wheel is rapidly accelerated in the swing wheel; its accelerating speed can reach several dozen times of acceleration of gravity; it is then ejected at high speed from the swing wheel. It is firstly pounded and crushed together with another material freely dropping from the surrounding of material distributor, then all of them are impacted onto vortex lining in vortex cavity and are rebounded by material lining and is obliquely impacted onto top part of vortex cavity; its movement direction is changed to make it move downward and be hit with material ejected from flow passage of the impeller to form continuous material curtain. Then, one block of material is pounded, fractioned, grinded and crushed in vortex crushing cavity for two to many times. Crushed material is discharged from discharge opening at the lower part.

Technical Data of VSI Sand Making Machine:

Notice: Any change of Sand Making Machine technical data shall not be advised additionally.