The extraction equipment of the company can be used for technique operations, such as normal pressure, cooking with water, wet dipping, hot reflux, forced circulation and infiltration, essential oil distillation and organic solvent reclamation in traditional Chinese medicine, foodstuff and chemical industries and the product has the characteristics of high efficiency and convenient operation. The unit is excellently selected and widely applied in extraction of volatile oil of pharmacy, foodstuff and chemical industry and it has 500L, 1200L, 2500L, 3000L and 6000L specifications.