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Solvent extraction systems for producing concrete and botanical extracts from rose, jasmine, lavender and other aromatic plants. Turbo, rotary and static basket extractors from 100 to 5,000 litres, with integrated vacuum solvent recovery.
SOLVENT EXTRACTION TECHNOLOGY
Solvent extraction systems dissolve the aromatic and active compounds of a plant into a food-grade solvent at low temperature, then remove the solvent under vacuum to leave a concentrated extract. For flowers such as Rosa damascena and jasmine, the product is a concrete: the waxy aromatic extract that is later refined with alcohol into an absolute. Because the process runs under vacuum at low temperature, it preserves the natural scent, colour and character of the plant better than heat-based methods.
Dünder Makine builds complete solvent extraction systems in AISI 304/316 stainless steel, from compact 100 litre units to 5,000 litre industrial lines.
COMPARE EXTRACTION METHODS
All three solvent extraction systems separate the target compounds from the raw material with a solvent. They differ in how the solvent and plant material are brought into contact, which changes extraction time, yield, solvent use and investment cost.
| Feature | Turbo (EKS-T) | Rotary (EKS-R) | Static basket (EKS-S) |
|---|---|---|---|
| Working principle | High-speed mixing and mechanical force | Rotating drum mixes solvent and raw material | Plant material rests on sieves in constant solvent contact |
| Extraction time | Short | Medium | Long |
| Efficiency | Highest | High | Medium |
| Solvent usage | Low | Medium | High |
| Energy consumption | High | Medium | Low |
| Production scale | Small and medium | Medium and large | Small and medium |
| Investment cost | Medium | High | Low |
| Maintenance | Medium | Difficult | Easy |
| Water consumption | Medium | High | Low |
| Automation | All suitable for full automation | ||
| Vacuum evaporator | Available for all models | ||
Turbo extraction speeds up the process with high-speed mixing. It gives the shortest extraction time and the highest efficiency with low solvent consumption, which makes it a strong choice for essential oil, cosmetic and pharmaceutical producers who want fast, high-yield batches.
| Features | EKS-T 1000 | EKS-T 3500 | EKS-T 5000 |
|---|---|---|---|
| Capacity | 2,500 L | 3,500 L | 5,000 L |
| Motor power | 2.2 kW | 4 kW | 7.5 kW |
| Evaporator unit | 250 L | 300 L | 600 L |
| Material | AISI 304 / 316 | ||
| Heating | Indirect | ||
| Cooling | Tubular / serpentine | ||
| Operating pressure | 0.5 to 1 bar | ||
The mini turbo series brings turbo extraction to a compact size for pilot production, small producers and research. High-speed mixing keeps extraction time short and solvent consumption low, with its own evaporator for solvent recovery.
| Features | EKS-Tm 100 | EKS-Tm 250 | EKS-Tm 500 |
|---|---|---|---|
| Capacity | 100 L | 250 L | 500 L |
| Motor power | 0.37 kW | 1.1 kW | 1.1 kW |
| Evaporator unit | 50 L | 50 L | 100 L |
| Material | AISI 304 / 316 | ||
| Heating | Indirect | ||
| Cooling | Tubular / serpentine | ||
| Operating pressure | 0.5 to 1 bar | ||
Rotary extraction increases the contact between raw material and solvent through the rotation of the extractor drum. It offers high yield and effective extraction for medium and large-scale production of concrete, essential oils and herbal extracts.
| Features | EKS-R 250 | EKS-R 500 |
|---|---|---|
| Capacity | 2,500 L | 4,000 L |
| Motor power | 2.2 kW | 4 kW |
| Evaporator unit | 250 L | 300 L |
| Material | AISI 304 / 316 | |
| Heating | Direct / indirect steam | |
| Cooling | Tubular / serpentine | |
| Operating pressure | 0.5 to 1 bar | |
In static extraction, the plant material is placed on baskets or sieves inside the extractor and left to stand in the solvent, so the aromatic compounds dissolve slowly and gently. Low energy consumption, simple operation, easy maintenance and low investment cost make it a reliable choice for essential oil, cosmetic and pharmaceutical producers.
| Features | EKS-S 100 | EKS-S 250 | EKS-S 500 |
|---|---|---|---|
| Capacity | 1,500 L | 3,500 L | 5,000 L |
| Evaporator unit | 100 L | 300 L | 600 L |
| Material | AISI 304 / 316 | ||
| Heating | Direct / indirect steam | ||
| Cooling | Tubular / serpentine | ||
| Operating pressure | 0.5 to 1 bar | ||
All values are for reference. Our machines are standard designs and can be modified according to your raw material, capacity and site requirements.
PRODUCTION PROCESS
Every Dünder Makine extraction line follows the same seven stages, from fresh plant material to finished concrete:
The concrete can then be refined into an absolute in our absolute production systems.
| No | Equipment |
|---|---|
| 1 | Turbo, rotary or static extractor |
| 2 | Extractor cooling exchanger |
| 3 | Solvent collection tank (horizontal) |
| 4 | Stainless steel filter |
| 5 | Pump |
| 6 | Settling tank (horizontal) |
| 7 | Decanter |
| 8 | Distiller |
| 9 | Distiller cooler |
| 10 | Solvent collection tank (horizontal) |
| 11 | Pump |
| 12 | Settling tank (vertical) |
| 13 | Vacuum evaporator unit |
The evaporator removes the solvent from the extract under controlled temperature and vacuum. As the heated liquid reaches its boiling point, the solvent evaporates and is condensed for reuse, while the concentrated extract stays behind. Vacuum operation keeps temperatures low to protect heat-sensitive aroma compounds.
| Features | EVP-250 | EVP-300 | EVP-600 |
|---|---|---|---|
| Capacity | 250 L | 300 L | 600 L |
| Motor power | 0.37 kW | ||
| Material | AISI 304 / 316 | ||
| Heating | Indirect | ||
| Cooling | Tubular / serpentine | ||
| Vacuum system | Available | ||
PROCESS VIDEOS
KEY ADVANTAGES
Our extraction lines are designed for high yield, efficient solvent recovery and safe, reliable long-term operation.
Turbo, rotary and static basket extractors, so the method fits your raw material and budget.
Distiller and vacuum evaporator recover the solvent for reuse and lower operating costs.
Vacuum operation protects heat-sensitive aroma compounds and natural colour.
Built from AISI 304 / 316 stainless steel for hygienic, durable and corrosion-resistant operation.
Standard designs that we modify according to your raw material, capacity and site.
Design, manufacturing, installation, commissioning, operator training and maintenance from one supplier.
TECHNICAL DATA
100 to 5,000 L
AISI 304 / 316
0.5 to 1 bar
0.37 to 7.5 kW
Direct / Indirect Steam
Vacuum Evaporator
APPLICATIONS
Our extraction lines process delicate flowers, herbs and leaves. Flowers that are too delicate for distillation give their finest aroma through solvent extraction.
Rosa damascena concrete, the raw material of rose absolute.
Jasmine concrete for fine fragrance absolutes.
Rich floral concrete for luxury perfumery.
Lavender concrete and extracts for fragrance and cosmetics.
Gentle extraction for cosmetic and pharmaceutical use.
Orange blossom concrete with low-temperature processing.
Green aromatic notes for fine fragrances.
Thyme, mint, rosemary and other herbal extracts.
GLOBAL INDUSTRIES
Concrete and botanical extracts from our solvent extraction systems are used across the fragrance, cosmetic and natural ingredients industries.
Concrete as the base for premium absolutes in perfumery.
Natural botanical extracts for skincare and body care.
Natural aromatic extracts for wellness products.
Herbal extracts with controlled, low-temperature processing.
Botanical extracts for natural and clean-label formulations.
FREQUENTLY ASKED QUESTIONS
Turbo extraction uses high-speed mixing and gives the shortest extraction time, highest efficiency and lowest solvent use. Rotary extraction mixes solvent and plant material in a rotating drum and suits medium to large-scale production. Static basket extraction keeps the plant material on sieves in constant solvent contact; it is slower but has the lowest investment cost and the easiest maintenance.
A concrete is the waxy aromatic extract obtained from flowers by solvent extraction. It is dissolved in alcohol, cooled and filtered to remove the waxes, and the alcohol is then evaporated under vacuum. The result is the absolute. See our absolute production systems for this second stage.
From 100 litres (EKS-Tm 100 mini turbo) up to 5,000 litres (EKS-T 5000 turbo and EKS-S 500 static). Rotary EKS-R models are available in 2,500 and 4,000 litres.
Most of the solvent is recovered in the distiller, and the rest in an EVP vacuum evaporator (250, 300 or 600 litres) that works at low temperature. The recovered solvent is reused, which lowers operating costs.
Rose, jasmine, tuberose, lavender, chamomile, neroli, violet leaf and many herbs. Delicate flowers whose aroma would be damaged by distillation are typical raw materials for solvent extraction.
All extractors are made of AISI 304 or AISI 316 stainless steel and operate at 0.5 to 1 bar, with direct or indirect steam heating and tubular or serpentine cooling.
Yes. All models are standard designs and can be modified according to your raw material, capacity, available utilities and site.
Yes. We provide design, manufacturing, installation, commissioning, operator training, maintenance and after-sales technical support.
START YOUR PROJECT
Tell us your raw material, daily capacity, target product and installation country. Our engineering team will recommend the right extraction method and prepare a customized proposal. Looking for essential oils instead? See our essential oil distillation units.
Trusted by customers in more than 30 countries since 1980, with complete engineering, manufacturing, installation and commissioning services. See our references.
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Copyright © 2026 Dünder Makine
Dünder Makine, founded in 1980, is a leading manufacturer of stainless steel distillation and extraction equipment for the global fragrance, cosmetics, and essential oils industry.
Serkan DÜNDER: +90 554 474 9580
Aytaç DÜNDER: +90 544 562 4673
Süleyman DÜNDER: +31 6 3452 8881
