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Advanced Subcritical Extraction Technology for Natural Extracts

High-efficiency, low-temperature extraction systems for essential oils, spice oleoresins, plant pigments, and vegetable proteins. Designed for industrial-scale production with unmatched purity and yield.

Industrial Extraction Plant

About Our Technology

Sub-critical extraction is designed for extracting active substances from natural plants, animals, and microorganisms. It is the ideal choice for producing high-quality essential oils, oleoresins, biological proteins, and natural pigments.

Our systems operate at low temperatures (below 40°C), preserving heat-sensitive compounds and delivering extracts with superior purity and stability.

  • Low-temperature, non-destructive extraction
  • Residual solvent < 50 ppm
  • Residual oil < 1%
  • Environmentally safe, zero discharge
  • Energy efficient – 70% less heat than traditional methods
Extraction Process Plant Operation Equipment Detail Pepper Extraction

Our Extraction Systems

From laboratory units to full-scale industrial plants, our subcritical extraction machines deliver unmatched performance across a wide range of natural materials.

Grape Seed Oil Extraction Machine

Grape Seed Oil Extraction Machine

20TPD industrial plant for high-purity grape seed oil with minimal thermal degradation.

  • Capacity: 20 Tons/Day
  • Solvent: Butane (4#)
  • Temp: <40°C
Walnut Oil Extraction Machine

Walnut Oil Extraction Machine

Preserves omega-3 and antioxidants with low-temperature subcritical extraction.

  • Capacity: 5–50 T/D
  • Solvent: Propane
  • Residual Oil: <1%
Mini Extraction Unit

Mini Extraction Unit (Lab)

Compact 5–150 L/hr system for R&D and small-batch production.

  • Capacity: 5–150 L/Hour
  • Use: Lab & Pilot Scale
  • Pressure: 0.3–0.7 MPa
Pepper Oil Extraction Plant

Spice Oleoresin Extraction Plant

Extracts piperine-rich oleoresin from black and white pepper efficiently.

  • Capacity: 1–100 T/D
  • Solvent: Butane/Methyl Ether
  • Yield: High extraction ratio
Camellia Seed Oil Line

Camellia Seed Oil Production Line

50TPD organic line for premium tea seed oil with golden meal byproduct.

  • Capacity: 50 Tons/Day
  • Application: Organic Oil
  • Residue Value: High-protein meal
Protein Extraction Machine

Plant Protein Extraction Machine

Ideal for soy, flaxseed, and moringa – preserves water-soluble proteins.

  • Capacity: 0.1–200 T/D
  • Temp: Room temp extraction
  • Use: Functional food ingredients
Linseed Oil Plant

Linseed Oil Extraction Plant

20TPD system optimized for high omega-3 retention in flaxseed oil.

  • Capacity: 20 Tons/Day
  • Solvent: Butane
  • Feature: Low energy consumption
Ganoderma Spores Oil Line

Ganoderma Spores Oil Production

2TPD specialized line for medicinal mushroom extracts with high bioactivity.

  • Capacity: 2 Tons/Day
  • Application: Nutraceuticals
  • Technology: Subcritical CO2 alternative

Why Choose Subcritical Extraction?

Low-Temperature Process

Extraction and desolventizing below 40°C preserve heat-sensitive compounds like proteins, pigments, and volatile oils.

Eco-Friendly & Zero Discharge

Closed-loop system with no pollution. Solvent recovery rate exceeds 99%, making it environmentally sustainable.

Industrial Scalability

From 0.1 T/D lab units to 200 T/D full plants. Proven in hundreds of installations worldwide.

Energy Efficient

Uses only 90°C hot water—no steam required. Saves up to 70% energy compared to hexane extraction.

High Purity Extracts

Residual solvent < 50 ppm, residual oil < 1%. Ideal for food, cosmetic, and pharmaceutical applications.

Lower Investment & Operating Cost

Lower pressure requirements reduce equipment cost. Solvent consumption: only 4–8 kg per ton of raw material.

200+
Tons/Day Max Capacity
50 ppm
Max Residual Solvent
<1%
Residual Oil Rate
70%
Energy Savings vs Hexane

Frequently Asked Questions

What is subcritical extraction?

Subcritical extraction uses liquefied gases like butane or propane at low temperatures and moderate pressures to extract active compounds without damaging heat-sensitive components.

How does it differ from supercritical CO2 extraction?

Subcritical extraction operates at much lower pressures than supercritical CO2, reducing equipment cost and enabling large-scale industrial use while maintaining high extract quality.

Is the process safe?

Yes. Our systems are fully sealed, vacuum-operated, and equipped with safety sensors. Solvents are recovered and reused, minimizing risk and environmental impact.

What materials can be processed?

We process seeds (grape, flax, walnut), spices (pepper, chili), herbs (rosemary, ganoderma), pigments (marigold), and protein sources (soy, moringa).

What solvents do you use?

Liquid propane, butane (4#), methyl ether, tetrafluoroethane, and liquid ammonia—selected based on material and desired extract.

Get in Touch

For technical inquiries, project consultations, or pricing information, visit our official website to contact the team.

info@bestextractionmachine.com
+86 372 5965148
+86 372 5951936

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