Zhengzhou Siwei Grain & Oil Engineering and Technology Co., Ltd. is a specialized manufacturer and engineering firm based in Zhengzhou, China, with over 30 years of expertise in the oils and fats industry. Established in 2005, the company operates as an integrated entity combining technology research, advanced machinery manufacturing, and international trade. With a workforce of 301 to 500 employees, including nearly 70 advanced engineers, the company provides comprehensive turnkey solutions ranging from strategic planning and feasibility studies to equipment design, fabrication, and installation.
The company specializes in large-scale vegetable oil engineering, offering complete production lines for oilseeds such as soybean, rapeseed, sunflower, peanut, and palm oil. Their extensive product portfolio includes oilseed pretreatment equipment, extraction workshops, and refinery solutions for crude oil refining, dewaxing, and fractionation. Key machinery includes soybean flakers, oil material extrusion puffing machines, vertical rotary thin film evaporators, and horizontal dryers. Beyond edible oils, they provide specialized engineering for biodiesel, soy protein production, and phospholipid processing.
Zhengzhou Siwei is ISO 9001 certified and serves a prestigious global clientele, including COFCO, Louis Dreyfus Company, and Yihai Kerry. Their manufacturing capabilities support processing capacities of up to 4000 TPD for extraction and 200 TPD for refining. As a contract manufacturer and OEM provider, the company delivers high-performance equipment for the chemical, food, and grain industries, ensuring quality through rigorous technical training and management consultation services.