The set is wide used for extracting Chinese tradicine and is suitable for the processes such as using water or organic solvent as medium to boil drug material for extraction or hot reflux extraction or cycle immersing and etc.During the period of extraction,the volatile oil component can be recovered.

　　The set has high efficiency to extract effective component of drug material in batch and can save energy source.The extraction contains high concentration of drug.
　　Its main body adapts twh structure of straight cylinder type.Therefore it is very convenient to discharge dreg.
　　The doors for discharging dreg and fed material adapt hydraulic lifting system.Its operation is more stable and reliable than that of traditional lifting way of pneumatic door and door and can avoid the mistake and damage caused by manual operation.It does not need compressed air source.No moise,good self-locking property.The investment and the cost of operation and maintenance can be saved too.