Closed-loop extractor is a device used to extract solvent from solid matter. It is widely used in industrial plant concentrates. In the whole process, there are several parts used to extract the solvent. The solvent can be used and recycled in a closed-loop extractor. The accessories of closed-loop extractor 1. High-pressure food grade hoses: the tube used to transfer liquid phase butane 2. Solvent tank: the container used to contain solvents 3. Product tubes: the tube used to transfer production 4. Collection chamber: the container used to collect oil 5.Ancillary Equipment Recovery pump: used to provide pressure to recover the solvents. If needed, please contact the customer service in advance. The price of this product does not include the recovery pump. 6. Material column: the reactor.