Decanters are a very efficient means of carrying out solid-liquid extraction with a high solids content. Before entering the decanter, the extraction product, which has previously been comminuted, broken down or ground down, is mixed intensively with the extraction agent in a separate mixer. The inlet through which the suspension flows into the decanter is arranged axially in relation to the rotating bowl. The solid-wall bowl has a cylindrical section for efficient clarification of the liquid and a conical section for dewatering the solids. The scroll, which rotates with a slight differential speed relative to the bowl, conveys the solids (extraction residue) to the solids discharge at the conical end of the bowl. The extract is conveyed to the cylindrical end of the bowl where it is discharged via a centripetal pump.


GEA solid-wall disc-type separators are used for liquid-liquid extraction processes

GEA separators for pharma extraction are designed in accordance to GMP requirements.

GEA clarifiers for pharma extraction are used in solid-liquid extraction processes with low solid contents (up to approx. 7 % by vol.).

Even the best centrifuges cannot function optimally if they are not partnered with control systems of equal quality. For their range of separators and decanters, GEA offers standardized as well as tailor-made solutions for machine automation with many features to meet customer requirements.
GEA’s past fiscal year was one of significant growth and further profitability gains. In particular, the technology group substantially increased order intake, with all divisions contributing here. GEA also made progress in all Mission 30 strategic growth areas. In addition, GEA met key interim targets under its climate plan ahead of schedule. Major milestones in fiscal year 2025 were admission to the DAX index, the award of one of the largest contracts in the company’s history, and streamlining of the corporate structure.