Henan Tianyu is domestic famous sweet potato starch processing company, whose products are sold all over the world including Korea, Japan, Taiwan, etc. At 2009, we helped rebuilt origin starch production line, enlarging capacity to 20TPH sweet potato input. This project we built does not only realize origin design requirements, but also improves product yield significantly. This plant utilizes automatic control system, reducing labor cost, stabilizing product quality, and realizing significant economic efficiency.