I. Introduction Type WCB-500J stable soil mixing plant mixing absorb the international advanced technology, equipment, fully automatic computer control system; electronic scale measures the amount of continuous weighing ingredients; system can control the production process and condition monitoring. Automatic, programmed and manual mode of operation of three, a complete production management, printing, matching automatically transferred and stored functions. All conveying equipment and support facilities have adopted a mature advanced technology and production process. The device successfully resolved the large flow continuous batching and continuous mixing of two key issues, equipment to achieve high productivity for large-scale mechanized construction of stabilized soil mixing plant supporting possible. WCB series of continuous mixing plant's inception, its very stable, uniform mixing, batching precision, easy operation, high automation and high reliability, has been a growing number of highway construction unit as a preferred stabilized soil mixing plant. WCB-500J Stabilized Soil Mixing Plant consists of five parts: the pellet feed system, stabilizer (cement, lime powder) feeding system, water supply systems, transportation mixing with the transition storage system, electrical control system. Type WCB-500J Productivity(t/h) 500 Water tank capacity(m³) 5m³ ×volume of the number of stone warehouse 3×20t Hopper volume × number of broken arch 1×20t × number of silo capacity 1×60m3 Feeding capacity of cement 0 50t/h Capacity of the water feeding 0 40t/h Aggregate measurement accuracy ±2.0% Measurement error of cement ±0.5% Water metering accuracy ±2.0% Installed capacity 142.98KW(Standard) Installation area 52×6m²(Standard) Weight 45t