The EXPEC 510S pressure reducing parallel concentrator evaporates the solvent under multiple effects of pressure reduction, heating, and oscillation. The evaporated solvent is drawn into a snake shaped condenser tube and condensed back into a collection bottle for collection, achieving sample concentration and solvent collection without the need for an external gas source during the concentration process. The instrument structure adopts an integrated cover plate, which can be locked and opened with one click, optimizing the operation steps and processes of experimental personnel; It has the advantages of good concentration parallelism, high throughput, and strong compatibility, which reduces the experimental burden on laboratory personnel and is an essential pre-processing equipment in the laboratory.