JE high load-bearing series single screw extruder reducer is a high-efficiency transmission device designed for extruders. It adopts modular design and is equipped with high-specification thrust bearings. It has the advantages of compact structure, high load-bearing capacity, stable transmission, high efficiency, low noise and high reliability; SZ/SZL series special reducer is a special transmission device for conical twin-screw plastic extruders. It consists of a reduction box and a distribution box. The input power is reduced in speed and torque increased by the reduction box, and then output to the distribution box, which then drives the two tapered screws to run synchronously in opposite directions.