Handmade wet coated sand: the coated sand wet compressive strength can be adjusted within 0.1-0.3MPa. Stored for more than three months, or the system is suitable for hand molding core (like tung oil sands Hop fat sand) coated sand regeneration factory, after stripping at room temperature, the type (core) into the oven or oven heating, heating temperature 250-350 ℃ coated sand recycling equipment manufacturers, the heating time 3-10min, type (core) after curing with high intensity, low-fat volume, low creep deformation amount, does not absorb moisture and so on. The coated sand suitable for single pieces and small batch production of high precision casting, particularly suitable for township enterprises to adopt. It is worth noting that, in the type (core) heat curing, must wait to put heating furnace reaches the desired temperature, avoid heating the furnace heats the metal type iron-type coated sand process The process is in rough shape of ( iron type) cavity covered with a thin layer of coated sand (3-8mm) to form a mold coated sand regeneration, see Figure 1. It does this by various means, such as technology test, computer simulation, experience charts, reasonable set of iron-type wall thickness and the thickness of coated sand, sand casting system and coating materials to achieve so cast in a more favorable conditions Under the complete filling and solidification cooling, improve its internal quality and surface quality of the coated sand regeneration purpose machinery _ Qingdao Heng (certified) _ Shandong coated sand regeneration provided by Heng Machinery Co., Ltd. Qingdao. Qingdao Heng Machinery Co., Ltd. (www.thjidian.com) is Qingdao, cleaning, cleaning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qingdao Heng led the staff warmly welcome all inquiries negotiations to create a better future Qingdao Heng.