Quality Digest

VSI crusher, is called vertical shaft impact crusher, is a kind sand making
equipment aims to produce artifical sand, manufactured sand. SBM B series VSI
crusher is of high efficiency and high performance crusher, low in maintenance
and low operating cost. Our high proficiency sand making machine is designed and
manufactured to produce fine quality sand with high productivity output. The
final product is of cubical shape with grounded edges, which is widely used in
concrete, building, construction.

VSI crusher application

• B series VSI crusher (Vertical Shaft Impact Crusher) is applied widely for
  the powder process of mineral product including mental and non-metay ore,
  fireproof material, bauxite, diamond dust, glass raw materials, building
  materials, artificial sand and all kinds of metal ore materials, especially
  which has more advantages than any other machines in processing the more and
  most hard materials.
• VSI crusher main features and benefits
  • 1. High efficiency, low energy consumption, low operation cost and easy
    operation.
  • 2. Cubic shaped fina product..
  • 3. Advanced double-pump oil lubrication system guarantee shaft bearing lower
    temperature increase, longer life time, more reliable operation. Special light
    oil lubrication system ensures the temperature is below 25.
  • 4. Hydraulic lifting mechanism of upper cover can move away the cover
    easily, which saves man power during maintenance.
  • 5. 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.
• VSI crusher main parts

  VSI Crusher is made up of First Stage Impact Curtain With Anvils, Impact
  Crutain Adjusting Rods, Second Stage Impact Curtain With Anvils, Rotor, Liner
  plate, Blow Bar, Wedge Lock Assembly, Discharge Opening, Third Stage Impact
  Plate, Back-up Bar and so on. We also offer spare parts and original wear
  parts related to the vsi crusher.

• Operating rules of VSI crusher

  1. Checking the whirlpool cavity’s observation door whether it is closed
  tightly, in case the materials is fired from the observation door, to cause
  danger. 2. Checking the rotation direction of the impeller .The impeller
  should rotate in the counter clockwise, or the electro motor’s wiring should be
  adjusted. 3. The start sequence of the breaker and convey equipment. 4.
  Discharge breaker feed 5. Breaker muse be started up under no loading
  condition, the materials should be fed after the breaker is in good order.
  6. The sequence of shut down and start up is opposite. 7. The feed size
  should be according to the requirement of every kind of machine strictly,
  materials over the requirements must be forbidden otherwise imbalance is
  produced and the impeller is wired heavily, even the tunnel of impeller and
  middle of feed tube will be jammed, as a result the machine can not work well.
  8. Feeding should be continuous and even, The huge shake and abnormal noise
  shouldn��t exist in the process of the operation, or the machine should be shut
  down and checked.

• VSI crusher working
  principle

  Working pinciple is as follows: the materials enter the crusher through
  feeder hopper, is divided into two parts. one part go through the middle of
  classifier entering into the rotating impeller at high speed, then accelerated,
  whose speed can reach hundreds of acceleration. Under great centrifugal force,it
  is 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
  classifier, then impact on the whirlpool cavity’s scaleboard together, then will
  be rebounded and impact on the top of the whirlpool cavity, then changs its
  direction and goes down, forms continual material layers with the materials shot
  from the impeller. Therefore some materials will be impacted, crusher, milled
  twice or more times in the whirlpool cavity, then crushed matetials will be
  excluded through the bottom discharging hole. This can from a closed circulation
  through the circular classifier system. Finally smaller stone comes out, and
  goes to vibrating screen. Satisfactory material is transported to sand washing
  machine, however overlarge material will go back to sand maker to be refreshed.
  Output sizes can be made according to customers requirement. If input size is
  larger than the designed size, other crushing equipment will be necessary. in
  general, materials can be crushed into 20 mesh through thrice circulation.
  Airflow self-circulation in the whirlpool cavity can eliminate the dust
  pollution well.