rotor centrifugal sand maker Rotor centrifugal impact crusher adopts the advanced technology from Germany, and has features of high production efficiency, low power consumption, etc. Rockonrock principle minimizes the abrasion.
Sand casting is cheaper than die casting if only 5,000 parts are to be made. Die casting is cheaper than sand casting if more the 50,000 parts are to be made. Sand casting and die casting cost the same if around 9000 parts are to be made. In practice, there will usually be lots of processes to compare, and so there will be a lot of curves to draw.