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    Discussion in 'Press releases' started by hxjqmachinery, Oct 22, 2019.

    1. hxjqmachinery

      hxjqmachinery New Member

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      In recent years, along with the continuous construction of national infrastructure, demands for sand are rapidly increasing. Since the sand production is featured in short period and rapid financial return, more and more people aims at this area. Sand making plant, as a kind of stone crushing machinery for sale, is a kind of special machine, used for making building sands and stones.


      It is the machine that is produced by our HXJQ technicians, based on more than 30 years’ production experience and advanced technology. Compared with the traditional crusher, VSI crusher can save energy for about 50% to 60%. With remarkable advantages of complete automation, high working efficiency, large crushing ratio and strong working capacity, VSI crusher of mini rock crusher can produce cubic sands, with little acicular content and dust.


      Gradation and fineness modulus of finished sands can basically meet the national demands for construction. VSI crusher can process many rocks like limestone, basalt, granite, cobblestone and pebble, etc. The finished products are good aggregates for industries of expressway, railway, water conservancy and concrete batching plant, etc.
       
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    3. hxjqmachinery

      hxjqmachinery New Member

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    4. hxjqmachinery

      hxjqmachinery New Member

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      In 1927, a cone-shaped cone crusher was officially used in the heavy machine industry. This type of rock crushing equipment at that time has a Simon standard and a short cone crusher and a spherical cone crusher.
      Soon, the steeply inclined compression cone crusher was also introduced. In the beginning, this kind of cone crusher machine was called a compression rotary crusher. In essence, this kind of crusher machine was improved on the basis of the gyratory crusher, mainly used between medium and fine crushing. The crusher has the same shape and structure as the short-shaft gyratory crusher machine: a steep taper surface, a small discharge port, a short spindle, a large stroke, and a high speed.
      By the end of the 1950s, the cone crusher machines manufactured in various countries began to use hydraulic technology extensively, which further improved the cone crusher machine. At this time, the cone crusher machine of stone crushing machinery begins to adopt the hydraulic pressure or the original spring overload protection device, air pressure regulating discharge port device, hydraulic overload protection device and hydraulic locking device.
      At the same time, the steep cone crusher also adopts hydraulic technology while retaining the original steep cone surface. According to the location of its hydraulic setting, it can be divided into bottom hydraulic support and top hydraulic suspension. Since the regulation of the discharge port and the overload protection device adopt a unified hydraulic system, so the structure is simple.
       

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