The Zhengchang SZLH528 pellet mill optimizes the paddle’s structure and distribution, which can fully mix materials and offers a long conditioning time with a better cooking and mixing effect. The design of the gear box and driving system make the transmission more stable and reliable. Chute structure and the automatic discharging system have been improved. The mechanism of outer oil lubrication, anti-blockage die holes and pneumatic outer discharge of material assure that the equipment will work safely and tightly to reach a high hygienic level and be free of leak. The main shaft temperature alarm system improves the stability of main drive. The gears use the quality steel, lasting more than 30,000 hours.