The newly- developed VSI (vertical shaft impact) crusher is a crusher and shaper. Can be used as a crusher or a shaper by changing feeding methods and core structure of the crushing cavity. Thus, customers do not need to expand investment; they have a crusher and a shaper in a same time.

VSI crushersare 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 freeze proof and leak proof. In the fine crushing section, VSI is the substitute of impact crusher, and it is much better in terms of main performance indexes.

1. Special light oil lubrication system ensures the temperature is below 25℃.
2. Brand new automatic protection device supplies VSI with vibrating, oil filtering and warning systems.
3. Hydraulic system allows automatic uncovering, reducing intensity of labor and making maintenance easier.
4. Optimized arrangement design of wear resistant materials increase the service life of the machine by over 40%, thus decrease the cost by over 40%.
5. The mainframe is made with rivet hot technique, which enhances intensity of structure and tenacity, and ensures stable performance.

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.

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.