A vibrating sand, high strength, low gas, low expansion; 2, lax, good casting surface finish; 3, can not afford to shell layer, good thermal stability, good thermal conductivity, good liquidity coated sand renewable production line manufacturers, casting surface smooth; 4, high strength, high temperature, low inflation, good mold release, anti-sticky sand is good; 5, even without shelling shell, fast curing; ordinary coated sand: it composition usually consists of quartz sand novolac resin, methenamine and calcium stearate, without relevant additives. The resin is usually relatively high amount at a certain strength requirements, do not have high temperature, low inflation, low gas and other characteristics of renewable coated sand production line for some less demanding, simpler structure of cast iron production. High strength, low gas coated sand: is based on ordinary coated sand by adding the relevant characteristics of "additive" and the introduction of new preparation technique Qingdao coated sand regeneration equipment, so that the amount of resin dropped significantly reduce gas evolution and can delay the hair air speed. The coated sand with high strength, low inflation, low gas, gas and other characteristics of slow hair, especially for iron castings, steel castings in small and medium volume requirements for low-fat sand core, such as the body, such as sand cores coated sand regeneration Qingdao factory production line _ Heng (certified) _ 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.