The water-cooled models eliminate the dust contamination resulted from the air-cooling. In comparison with 6-inch model the optimized rolling-models increase the output by 30%-40% and meanwhile remarkably enhance the utilization ratio of gelatin. The gelatin is pneumatically conveyed from the thermal-insulated gelatin-storage pot through the ground, which improves the production environment. The food-grade conveyance belt produced by Lexno Corporation (USA) (FDA an approved) is used for conveyance of capsule, which is non-toxic, non-sticky, and easily washable. The setting-drying rotary cage is made of stainless steel expanded sheet, which is free of dead corners and easily washable. An oil pan is placed under the rotary cage to ensure a working environment free of oil drops. All the electric elements are imported from famous manufacturers and have stable performances. In production of low-dosage products, the accompanied 10-station and 14-station injection rod fully utilizes the width of molds and enhances the gelatin-utilization ratio and output. The optimal-designed injector extends the range of consistency of medicine solution. The improved capsule-peeling unit minimizes the probability of wrapping of the waste gelatin skin onto the gelatin-peeling rod. Except that the injector, the spreading box and the rolling-mold conveyance belt are made of special materials, the parts contacting with medicine are made of 304 or 316 superior stainless steel and absolutely conform to standard GMP.