VSI sand making machine,VSI vertical shaft impact crusher

VSI sand making machine (VSI Crusher,VSI vertical shaft impact crusher)  is the first choice for artificial sand making and stone sharping. Its high performance and low costs make it stand out from traditional sand making machine.

VSI series sand making machine is specially used to provide excellent aggregate materail to highway, railway, building, city construction and hydropower industry.

It has two kinds of crushing chamber, "rock-on-rock" and "rock-on-anvil". "rock-on-rock" is suitable for hard materials. The sand making ratio is above 40%. "rock-on-anvil" is suitable for medium-hard materials. The sand making ratio is above 50%. These two kinds of crushing methods can transform to each other so as to suit different materials.

The machine is a result of the lastest design developed by Germanic esperts and integrating the China’s working conditions. It is a high-efficient sand making machine manufactured independently and with a world grade advanced technology. This machine is specially used in high way, rail way, high constructions, municipal, hydroelectrical dam construction, offering high-quality stone integrations for concrete stiring plant, and is an optimum equipment of sand making and stone shaping. It can also be used in primary fine crushing of ore industry, construction materials, metallurgy, fire-electricity, chemistry, ore, fire proof materials, cement, abrasive filler to carry out material crushing; secondary crushing for abrasion proof material, fire electricity, metallurgy to eliminate sulfur, crush steel slag and construction wastes. In total, they are suitable for environment protection subjects, production of glass, quartz sand and other high purity materials.

Features of VSI Impact Crusher

1.High output and wide utilization ratio: compared with traditonal machinery under same power, its production capacity increases 30% and structure is stability.
2. Low comsumption of easy-wear parts.
3. Excellent shaped final products.
4. Lubrication system ensures reliable operation.
5. Over-vibration device is equiped to protect the machine when vibration surpasses a stipulated figure.
6. The adjustable feed hopper guarantees the best quantity of material.
7. Environment friendly.
8. Unique feeding method (change between central feeding and central feeding with cascade feeding make “rock on rock” and ‘rock on iron” possible, both crushing and shaping are achieved.
9. Special dustproof seal system, outside powder is prevented from entering oil mouth 

Working Principle of the VSI Impact Crusher

the materials enter the crusher through feeder hopper, which is divided into two parts, one part entering into the rotating through the middle of distributor impeller at high speed, then is accelerated, and shot through the tunnels around the impeller by the speed of 60-75 meter/second. First the materials will impact with some materials fallen around distributor, hit on the crushing chamber together, then will be rebounded and impact on the top of the crushing chamber, changes its direction and goes down, forms continual material layers with the materials shot from the impeller. Therefore some materials will be impacted, crushed, milled twice or more times in the crushing chamber, then crushed materials will be discharged through the bottom. This can form a closed circulation system; in general, the sand forming percentage increases 20-30% and the product shape is good. Airflow self-circulation in the crushing chamber can eliminate the dust pollution well. It is the first choice in manufacturing sand and its shape correction industries. 

Application of VSI Sand making Machine

VSI series crusher is widely applied in expressway and railway building, hydropower station construction, bridge and tunnel building, concrete batching plant, etc for crushing and gravel shaping.They are highly recommended when it comes to the shaping of gravels used in concrete aggregates, whose concrete strength is above C 60 or which required to be freezeproof and leakproof. In the fine crushing section, VSI is the substitute of impact crusher, and it is much better in terms of main performance indexes.

Technical Parameter

Mm to inch conversion: 25.4millimeters=1 inch

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