This machine is applicable for industries of pharmacy, food and chemistry as one of the main equipments for solid preparation. It is used to produce multiple granules, big granules, dense granules，instant porous granules, and dry materials in powder, granules or paste. It is one of the preferred equipment of pelletizing and drying for presence.

This machine contains a main engine and an auxiliary engine, with five systems, including cooling hot-air system, air purification system, charging and discharging system, automatic control system and air pipe line. During the operation, the materials are added into the hopper, and heated to the boiling state by the purified hot air (negative pressure) from the bottom of the pelletizing chamber. Meanwhile, the granules are dried by the hot airflow, forming into ideal, porous and homogeneous ones. The whole process is conducted in airtight condition.

This machine is newly designed under comprehensive research by Jian Pai. It combines foreign advanced techniques with domestic ones, providing convenient operation, stable performance and rational structure. It adopts the PLC automatic control, with 8 featured functions: The boiling materials can be rotated in 360degree, without dead angles. It allows automatic airtight charging and discharging. It adopts heat preservation and insulation structure. It prevents materials from sticking to the barrel. It is advanced in filtrating and gathering, not easy to leak (Grouping bag type and sintered stainless steel type). Divided structure is adopted in the main engine, making it easier to assemble and disassemble. The main engine can be linked directly with the former or latter equipment conveniently. The out frame adopts ladder type structure, providing convenience in processing and maintaining. This model is the most featured granulating drier at present. It completely conforms with the GMP requirements of pharmacy industry.