Anyang Gaokang Medical Co., Ltd. is one of the most reliable manufacturers and suppliers of subcritical extraction in China. With a professional production team, we are able to meet the needs of the majority of our customers. Please rest assured to buy premium subcritical extraction at competitive price from our factory.
Product Description
We supply pharmaceutical-grade subcritical extraction machine to extraction facilities that prioritize both purity and process safety. Our -42°C boiling point solvent delivers superior terpene retention and energy efficiency compared to traditional hydrocarbon methods.
Technical Advantages for Extraction Professionals
✔ 4.4MPa Critical Pressure – Ideal for low-temperature subcritical operation
✔ 329kJ/kg Vaporization Heat – 30% faster recovery than butane systems
✔ Non-Polar Solvent (ε=1.69) – Selective for terpenes and neutral compounds
✔ 9.5% Upper Explosion Limit – Safer handling than alternative solvents
features
Why Choose Our subcritical extraction machine
• Preserves Heat-Sensitive Compounds – Full-spectrum extracts with intact terpenes
• GMP-Compliant Supply Chain – Batch-traceable cylinders with certificates of analysis
• Optimized for:
CBD/THC isolation (89-92% recovery)
Delicate flavor extractions
High-value botanical concentrates
Product parameters
| Propane | Butane |
| Molecular Formula | C3H8 |
| Molecular Weight | 44 |
| Boiling Point ºC | -42 |
| Pressure Mpa at 20ºC | 0.83 |
| Critical Temp ºC | 95.7 |
| Critical Pressure MPa | 4.4 |
| Liquid Density: kg/L at 25ºC | 0.49 |
| Gas Density: kg/m 25ºC | 20.15 |
| Dielectric Constant | 1.69 |
| Latent Heat of Vaporization KJ/kg at 30ºC | 329 |
| Explosion Limit | 2.3%~9.5% |
| Toxicity LC50(mg/m3) | minor |
| Appearance | colorless, odor |
advantages of subcritical extraction
Three Extraction Advantages:
Lower Operating Costs – 22% faster cycle times than butane systems
Simpler Purification – Single-stage dewaxing capability
Future-Proof Compliance – Meets evolving cannabis regulatory standards
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