Also called sand molded casting. Is the process that utilizes non-reusable sand molds to form metal castings. Sand casting is used to produce a wide variety of cast iron components with complex geometries. In China, there are three types of sand casting techniques to make iron castings. They are precoated sand casting, resin sand casting and clay sand casting. Among them, precoated sand casting is the most precision sand casting process with general casting tolerance CT8. It is able to produce iron castings less than 2kgs. Clay sand casting is the second precision casting process with general casting tolerance CT9. Iron castings between 2kgs-60kgs are availble in this method. And resin sand casting is mainly used for the production of large iron castings above 60kgs.

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