The SJN Series is a high-efficiency, energy-saving Double-effect Vacuum Evaporator designed for the concentration of herbal extracts and liquid materials. By utilizing a dual-stage simultaneous evaporation process with negative pressure and external heating natural circulation, this unit maximizes thermal efficiency. All contact parts are manufactured from premium stainless steel, with high-performance insulation layers on the heaters and chambers. The surfaces are finished with mirror or matte polishing, fully complying with CGMP pharmaceutical standards.

Core Value Propositions

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• Versatile Process Flexibility: Effortlessly switch between atmospheric and negative pressure extraction. This unit supports a wide range of combinations for ambient leaching and low-temperature concentration.
• High-Efficiency Heat Reflux: Our “Large Reflux” technology eliminates the need for manual stirring. Achieve a direct transition from raw botanicals to fluid extracts while significantly reducing solvent waste.
• Precision Visual Monitoring: Equipped with specialized glass oil-water separators and observation windows, allowing engineers to track vacuum conversion and separation efficiency in real-time.
• Plug-and-Play Lab Integration: A compact, space-saving solution that integrates the vacuum pump, filter, and control system. Operation requires only basic water and power connections.

Primary Application Scenarios

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Scientific Research & Pharma R&D: Perfectly optimize extraction temperatures and solvent ratios to ensure a smooth transition from lab-scale testing to full pilot production.

Botanical & Natural Product Refining: Engineered for the low-temperature extraction of delicate flowers and herbs, preserving volatile active ingredients and ensuring high alcohol recovery.

Hospital & Boutique Pharmacy: Efficiently produces customized fluid extracts from precious medicinal materials, ensuring maximum yield of Active Pharmaceutical Ingredients (APIs).

Volatile Oil & Lipid Separation: Provides clear visual tracking and collection of essential oils, lipids, and ketones during the integrated distillation process.

Solutions to Critical Technical Challenges

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• Eliminating Solvent Saturation: Traditional units slow down as solvent saturates. Our dynamic reflux cycle continuously sprays fresh solvent to maintain a high concentration gradient for thorough leaching.
• Protecting Thermosensitive Compounds: The vacuum environment maintains a low-temperature, negative pressure setting (< 60°C), preventing the degradation of heat-sensitive enzymes.
• Overcoming Lab Space Constraints: The integrated, skid-mounted design eliminates the need for external vacuum pumps or complex external piping, fitting into limited facility footprints.
• Preventing Cross-Contamination: Mirror-polished stainless steel and a “dead-zone free” internal structure ensure easy sterilization and pharmaceutical-grade hygiene between batches.

Model	TNS-10	TNS-20	TNS-30	TNS-50
Total Capacity (L)	16	26	40	75
Extraction Tank Inner Dia. (mm)	219	300	325	400
Extraction Tank Volume (L)	10	20	30	50
Jacket Diameter (mm)	300	400	400	500
Heat Exchange Area (m²)	0.5	0.6	0.7	0.9
Cooling Area (m²)	0.25	0.25	0.25	0.25
Condensate Receiver Volume (L)	16	25	36	80
Concentration Tank Inner Dia. (mm)	219	300	325	400
Storage Tank Capacity (L)	20	30	38	120
Electric Heating Power (kW)	6	12	12	18
Equipment Dimensions (mm)	1300*500*1820	1540*530*1930	1560*550*2030	1950*700*2200
Circulation Pump Spec.	1T, 0.37kW	1T, 0.37kW	1T, 0.37kW	1T, 0.37kW
Vacuum Pump Capacity (L/s)	1	2	2	2.5