Vertical Shaft Impact crusher (VSI Sand Making Machine) uses a unique rock on rock crushing method employing a high speed rotor with crushing chamber of the equipment. Velocity is applied in Vertical Shaft Impact crushers as the resulting force, to break stone particles. While applying velocity rather than surface force the breaking force to be applied evenly on the surface of the rock.
In Vertical Shaft Impactors material to be crushed hit the other similar covering materials at very high velocity, simultaneously the same crushed particles come in collision with another particles frequently. The feed particles again acquire the velocity with he high impact of the kinetic energy of each other. The particles crack and crush under their mutual hit and force.
Vertical Shaft Impact crusher(VSI Sand Making Machine) gives perfect shape of final product. With the help of VSI crusher fine and course material production becomes easy and convenient . The output size in fine or coarse aggregates can be controlled by adjusting velocity of the input material and the distance between the end of the rotor and the impact point. The final output is cubicle in shape. VSI type of crusher is appropriate for materials with high abrasive property and silica content.
Vertical Shaft Impact crusher(VSI Sand Making Machine) consumes less energy to operate. VSI is equipped with double pump oil lubrication system and work on stone to stone crushing theory so the wear of components is minimum hence lower maintenance results lower operating cost in comparison to other similar stone breakers. It is easy to use due to simple operation mechanism.
Working Principle:
1. Center Feeding:
Raw material falls down into feed hopper, then enters impellor through central entrance hole. It is
accelerated in high-speed impellor, then is thrown out at speed of 60-75m/s. When hitting impact
plate, it is crushed. Final products come downwards though outlet.
2. Ring Feeding:
Raw material falls down into feed hopper, then through ring, it is devided into two parts by
material-dividing plate. One enters into impellor through the center of material-dividing plate. The
other falls down from outside of material-dividing plate. Material, which is thrown out by impellor
at speed of 60-75m/s, hits material coming down from outside of material-dividing plate. In this
way, material is crushed.
Features:
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.
1.VSI Sand Making Machine is used for concrete making
Manufactured sand produced by VSI Sand Making Machine is preferred because the cubical particle shape not only contributes more strength to the concrete, but results in further savings because less cement is required. Independent tests have proved that the more cubical the aggregate and the lower the proportion or flaky and elongated particles, the more acceptable the material will be from the mix design aspect. Natural sands have a tendency to have rounded corners and consequently produce a concrete which is not quite as strong as concrete using manufactured sand.
2. VSI Sand Making Machine is used in superpave
The heart of the superpave mixture design system is aggregate properties and volumetric properties. If all the requirements are met, the resulting mix design should have: a strong aggregate skeleton for permanent deformation resistance, sufficient asphalt binder for fatigue and asphalt binder aging resistance, sufficient air voids space to hold plastic properties at bay and prevent permanent deformation. VSI Sand Making Machine can solve all the above problems and VSI Sand Making Machine crushers are well-suited to provide such products.
3. VSI Sand Making Machine can be used in stone shaping
Stones and sand used in road building such as highway and railway track ballast have high demand on shape. So, we must used stone shaping machine after getting crushed stones and sands. VSI Sand Making Machine is the new generation stone shaping equipment designed by our company’s technicians. It dramatically decreases the use cost of the wearing parts. This equipment has the feature of low operation cost, easy maintenance, and low noise.
