VSI Vertical Shaft Impact Crusher
Usage and Application:

The vertical shaft impact crusher is advanced and high-efficiency equipment. It is the latest researched results basing on Germany technology. The machine is professional in producing qualified sand and stone for highway, high-speed railway, high building, city project, hydropower dam constructions, and concrete mixing plant. It is widely used in sand making and stone reshaping industry.
Features

1.Oil supplied by two oil pumps, stops automatically if there is no oil; cooled by water, heating the motor firstly if start the machine in winter.

2.Hydraulic lifting when changing or checking the spare parts which makes it easy and convenient in maintenance.

3.Famous brand SKF or TIMKEN of the bearing makes the machine work well and few problems.

4.Vibrating alarm device; if the crusher works abnormally, alarm will sound to make the machine stop working so as to protect the crusher.

5.Special feeding structure; rock on rock, and rock on iron in the crusher making the stone to be crushed and reshaped.

6.Unique dustproof seal system, protects the lubrications parts from the dust outside.

7.Perfect design on material bumping angle reduces the friction between raw material and quick-wear parts, prolongs the service time of quick-wear parts and cuts the cost.
Working principle

Materials fall into the hopper of VSI, then get into the high speed rotating wheelie through center feeding hole. Materials are speed up rapidly in the wheelie, the speed can be dozens of times of gravity acceleration, then shoot out at high speed and hit against the materials falling free after being rebounded, then they are all impacted to the liner layer of materials to strike against each other, or to the counterattack board to be bounded oblique upward to the top of the eddy current cavity, then change their heading , deflect and move downward, then strike against the materials shot out from the impeller passage , which forms continuous material flow. So the materials are hit, rubbed and grinded for two or more times in the eddy current crushing cavity. The crushed materials are discharged from the lower outlet.
VSI Vertical Shaft Impact Crusher http://www.greatwallcrusher.net/product/VSI-Vertical-Shaft-Impact-Crusher.html

About Us
With more than twenty years' history, Zhengzhou Great Wall Heavy Industry Machinery Co.,Ltd. is a manufacture which specialized in R&D, manufacturing and selling big and middle size heavy industry machinery. Since establishment, we make a good image in the market with scientific management, qualified products and perfect service.
 Our main products are crushers, grinding mills, other equipments for crushing plant and grinding plant, as well as building construction equipments. They are widely used in mining, building material, metallurgy, chemical, traffic, reservoir and so on. Our products are not only sold well in more than twenty provinces and cities in China, but also in tens of countries and regions in Eastern Europe, Middle East, Asia, Africa, North America, South America, and Oceania.
 Now we have domestic top ranking production equipments and precise testing instrument, each process of products is strictly inspected to guarantee the products to achieving high ex-factory standard. Besides, we cooperate with many famous universities and scientific research institutions, so that can make technical warrantee for the products in it's developing, updating and improving.
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The main site:
http://www.greatwallcrusher.net
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http://www.greatwallcrusher.net/product/VSI-Vertical-Shaft-Impact-Crusher.html
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hammer crusher http://www.greatwallcrusher.net/product/Hammer-Crusher.html
E-mail:greatwallcrushers@gmail.com
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