
A solvent extraction unit is more than an extractor. It is a chain of vessels, filters and pumps. Together, they turn fresh flowers into concrete and send the solvent back for reuse. We took this photo in a new production hall, and it shows several of those links.
Parts of the solvent extraction unit in the photo
- Extractor (left): here plant material and solvent mix.
- Settling tank (behind): the solution rests so solid particles sink.
- Pressure filter (centre): it removes fine plant residue.
- Distiller with column (right): it recovers most of the solvent.
- Collection tank (far right): it stores the recovered solvent.
- Pump (front): it moves the solution between stages.
The process step by step
- First, you prepare and load the raw material.
- Then the solvent goes in and mixing starts.
- Next, the solution settles.
- After that, it passes through the filters.
- A second vacuum filter then cleans it further.
- The distiller removes most of the solvent.
- Finally, the evaporator removes the rest and leaves the concrete.
The whole method is a form of solid and liquid extraction. However, a good line also cares about solvent safety and reuse.
Why a complete solvent extraction unit pays off
Each stage depends on the one before it. For example, a weak filter sends residue into the distiller. As a result, cleaning takes longer and the concrete loses quality. So we design every part of the line to work as one system.

What a full line includes
A complete Dünder Makine line has 13 main pieces of equipment, from the extractor to the vacuum evaporator. Also, you can compare turbo, rotary and static basket systems on our industrial extraction systems page.
In short, a solvent extraction unit works best when every part fits the next one. That is why we build complete lines, from the first extractor to the last evaporator, in our own workshop.
Watch a complete extraction unit
In this video, you can see one of our stainless steel solvent extraction units in detail.
FAQ
What does the unit produce? Concrete from flowers, or herbal extracts from leaves and roots.
Do you reuse the solvent? Yes. The distiller and evaporator recover it, and it goes back to the process.
Planning a new line? Contact us for a proposal.

