In the 1980s, due to the lack of technology and production equipment, the ∅2.5meters rotary kiln developed by CHAENG was launched into the market, which opened the way of developing and manufacturing CHAENG rotary kiln.

In the early 21st century, CHAENG carried out technological transformation of traditional rotary kilns according to the constant changes in market demand. The new rotary kiln is more energy efficient and environment-friendly, with high degree of automation and good quality of finished products. It is widely used in many industries such as building materials, cement plant ,metallurgy, chemical industry and environmental protection.