Vertical Shaft Impact Crusher

VSI Crusher

Vertical Shaft Impact Crusher, also known as VSI crusher which is a VSI series sand making machine. It is a high-efficiency and low-consumption sand crushing equipment. VSI crusher is widely used for intermediate and fine crushing rock, abrasive, refractory, cement clinker, quartz, iron ore, concrete aggregates and other hard, brittle materials.

JXSC china VSI Sand Making Machine

Structure of VSI crusher

VSI(Vertical Shaft Impact) crusher parts: motor, transmission device, spindle, impeller, feeder hopper, distributor, vortex crushing chamber, pedestal, lubrication device, and other parts.

4 Advantages of VSI crusher

1. High performance equipment
The series closed loop VSI sand makers have the advantages of simple structure, low cost, high efficiency and energy saving, high crushing efficiency, and the functions of fine crushing and coarse grinding.

2. Widely applications
VSI crusher machine is widely used products building aggregates, artificial sand, river pebbles, rock (limestone, granite, etc.), ore tailings, highway fabrics, asphalt concrete, and cement concrete aggregate. Especially for medium-hard, hard and abrasive materials such as silicon carbide, emery, magnesia, etc. The equipment has more advantages than other types of crushers.

3. Long service life and low maintenance rate of crusher parts
The finished product is cubic with little iron pollution. In addition, the material self-lining in the impeller and the vortex crushing chamber greatly reduces the wear parts cost and maintenance workload.

4. Easy to install
Easy to operation, maintenance, and installation. Working noise less than 75 DB (DB class) , light weight, various installation methods, removable installation, and other features.

VSI crusher price


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Application industries

  • Artificial sand making plant. Crushing river pebbles, rocks (limestone, granite, basalt, diabase, andesite, etc.) , ore tailings, artificial sand of stone debris.
  • Production of construction aggregates, road materials, bituminous concrete, and cement concrete aggregates.
  • Manufacturing mechanism sand of the highway, high-speed railway, bridge, airport runway, municipal engineering, high-rise building.
  • Mining industries of fine crushing process.
  • Crushing the glass, quartz sand and other high purity materials.

5 Factors affecting yield

1. Hardness of material.

The harder the material, the harder it is to make sand. And the more it will wear down on the VSI crusher. The hard rock makes sand-making slow and low crushing capacity. Therefore, we need to pay attention to the choice of crushing materials.

2. Composition of materials.

The more fine powder in the material before the vertical shaft impact crusher, the more influence the sand making process. Because these fine powder adhesion easily affects transportation. Therefore, the fine powder content of the material should be screening in advance. The fine powder as far as possible from the material screening out, so as it isn’t to affect the normal work of the VSI sand making machine.

3. Finished production size

The smaller sand finished production size, the smaller the sand-making capacity. In this regard to specific requirements. If no special requirements, the general fineness of the material can be set to fine.

4. Viscosity of the material

The greater the viscosity of the material, the easier the adhesion. The material with high viscosity will adhere to the inner wall of the sand chamber in the impact sand maker. If it can not be cleaned in time, it will affect the working efficiency of the VSI crusher. If it’s really serious, it may affect normal operation. Therefore, the viscosity of crushing materials is not easy to be too large.

5. Humidity of the material

When the moisture content in the material is large, the material is easy to stick in the vertical crusher. It is also easy to cause blockage in the feeding process which results in the sand-making capacity reduces. To solve this problem, first of all, we should strictly control the humidity of materials. If the material humidity is too large, we can use sunshine or air-drying methods to reduce the percentage of moisture in materials.

Horizontal Impact Crusher VS Vertical Impact Crusher

Horizontal crusher working principle: The rock materials enter the crushing cavity from one side or top, then reaches a point of the hammer which runs at maximum circumferential speed. Under the impact of the hammer and the impact of the crusher bar, the materials crushed. This is because of the material given a great impact. The horizontal impact crusher discharge area can be fitted with a grille or left open. The circumferential velocity of a hammer is usually no more than 120 inch/s. Another feature is that a certain number of large pieces generally need to be secondary crushing.

The circumferential velocity of the impellers or rotors of vertical impact crushers starts at about 145 finch/s. But in some cases can be as high as 330 inch/s. The very small size of the material can also be effectively crushing. The material accelerates gradually after reaching the central point of the impeller or rotor of the vertical crusher, thus avoiding the initial impact load characteristic of the horizontal impact crusher. Vertical impact crusher has no hammer, discharge area is always open, and don’t use the grilling.

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