- May 6, 2026
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3 min read
If your extraction process is leaving behind solvent, losing terpenes, or producing inconsistent results, the issue is often...
- Post-Processing Equipment
Cannabis Organic Solvent Nanofiltration Membrane
Dewaxing, Color Remediation, and Efficient Solvent Recovery
Root Sciences offers advanced membrane nanofiltration systems engineered for cannabis and hemp oil refinement. This cutting-edge technology enables processors to selectively separate cannabinoids, pesticides, lipids, and solvents with high efficiency, streamlining purification and improving extract quality. Ideal for winterization, solvent recovery, and cannabinoid isolation, our membrane nanofiltration equipment supports scalable production with minimal thermal degradation. Whether you’re looking to boost throughput or enhance your product purity, our systems deliver consistent results for cannabis and hemp extraction facilities worldwide.
Why Membrane Nanofiltration Matters
Low-Temperature Solvent Recovery
Organic solvent nanofiltration recovers solvents without relying on heat or evaporation, helping protect sensitive cannabinoids, terpenes, and plant compounds from thermal degradation.
01
Cleaner Extracts & Streamlined Purification
Specialized membranes help remove waxes, lipids, pigments, sugars, and unwanted impurities, supporting dewaxing, color remediation, winterization, and improved extract clarity.
02
Scalable, Energy-Efficient Processing
From lab-scale to industrial X-Spiral systems, membrane nanofiltration supports higher throughput, lower energy use, reduced maintenance, and scalable post-extraction workflows.
03
Our Organic Solvent Nanofiltration Membrane
Choose the right scale for your operation, from compact lab systems to high-throughput industrial solutions.
Lab Scale
X-Spiral 2.5
The X-Spiral 2.5 is a membrane nanofiltration unit designed for cannabis and hemp processors who need a compact yet capable solution for solvent recovery and in-line dewaxing. This system helps remove lipids, pigments, and sugars from ethanol-based extracts without relying on traditional winterization methods, which are time-consuming and resource-intensive. It also improves downstream efficiency by reducing buildup in distillation equipment and lowering maintenance demands. Suitable for smaller operations or facilities just beginning to implement nanofiltration into their workflow, the X-Spiral 2.5 offers flexibility with a modular design that can scale as production needs grow.
Commercial Scale
X-Spiral 4
The X-Spiral 4 provides mid-scale cannabis and hemp processors with an efficient option for improving extract clarity, color, and stability. Using organic solvent nanofiltration, it enables cold ethanol extraction at low temperatures—helping preserve cannabinoids and terpenes while removing unwanted components like waxes and chlorophyll. By integrating dewaxing and solvent recovery in one step, the system helps streamline post-extraction processing while lowering energy consumption and reducing the need for large evaporators or extensive chilling systems. The X-Spiral 4 is well-suited for facilities looking to scale up while maintaining quality control and reducing overall operational costs.
Industrial Scale
X-Spiral 8
Designed for high-volume cannabis and hemp operations, the X-Spiral 8 supports large-scale solvent recovery and filtration using organic solvent nanofiltration. It efficiently removes impurities such as waxes, sugars, and pigments, which not only improves product appearance and purity but also prevents common issues in downstream equipment, such as clogging and coking. By maintaining low operating temperatures, the X-Spiral 8 preserves the integrity of cannabinoids and allows for consistent, high-throughput processing without the risk of thermal degradation. Its fully integrated system design supports demanding production environments and is ideal for processors focused on maximizing yield while minimizing maintenance and energy usage.
What is Membrane Nanofiltration?
Membrane nanofiltration, also known as Organic Solvent Nanofiltration, is a low-temperature separation method used in cannabis and hemp oil refinement. Instead of relying on heat or evaporation, the process uses pressure and specialized membranes to separate solvents from larger compounds such as cannabinoids, waxes, pigments, lipids, and other impurities.
Root Sciences offers X-Spiral membrane nanofiltration systems for solvent recovery, in-line dewaxing, color remediation, winterization, and cannabinoid purification. The lineup includes X-Spiral 2.5 for lab-scale processing, X-Spiral 4 for commercial-scale operations, and X-Spiral 8 for industrial-scale production.
Key Characteristics
- Low-Temperature Separation: Uses pressure instead of heat, helping reduce thermal degradation.
- Solvent Recovery: Separates and recovers solvents without traditional evaporation.
- In-Line Dewaxing: Helps remove waxes, lipids, sugars, pigments, and other unwanted compounds.
- Product Quality Protection: Preserves sensitive cannabinoids and terpenes by avoiding harsh heat.
- Flexible Purification: Can support winterization, color remediation, pesticide remediation, and targeted cleanup depending on membrane selection.
How Membrane Nanofiltration Works
| Process Stage | What Happens |
|---|---|
| Extract Preparation | Cannabis or hemp extract containing solvent, cannabinoids, waxes, pigments, and other compounds is prepared for membrane filtration. |
| Pressure-Driven Separation | The solution is pushed through specialized nanofiltration membranes using pressure instead of heat or evaporation. |
| Solvent Passage | Smaller solvent molecules pass through the membrane and are recovered for reuse. |
| Compound Retention | Larger molecules such as cannabinoids, waxes, lipids, sugars, pigments, and impurities are retained on the other side of the membrane. |
| Refined Output | The process supports cleaner extract, improved clarity, solvent recovery, in-line dewaxing, and reduced downstream equipment buildup. |
Frequently Asked Questions
What is Organic Solvent Nanofiltration (OSN)?
OSN is a membrane-based separation method that filters solvents from larger compounds at low temperatures, allowing processors to recover and purify solvents without relying on heat. This makes it ideal for protecting cannabinoids, terpenes, and other sensitive plant components.
How does OSN benefit cannabis and hemp processors?
OSN supports cleaner separation, reduces energy use, and preserves product quality by avoiding thermal degradation. It also helps streamline post-extraction workflows by combining solvent recovery, winterization, and purification on the same platform.
What’s the difference between the X-Spiral 2.5, 4, and 8?
The three systems mainly differ in throughput and scale. The X-Spiral 2.5 is designed for lab-scale production, the X-Spiral 4 supports commercial operations, and the X-Spiral 8 is built for continuous industrial-scale processing.
What solvents can OSN handle?
The technology is compatible with a wide range of organic solvents commonly used in cannabis and hemp extraction workflows, including those used in ethanol, hydrocarbon, and other solvent-based processes.
Does OSN replace falling-film evaporators?
For many facilities, yes. Because OSN recovers solvents without heat or evaporation, it can provide comparable or higher throughput with significantly lower energy requirements and gentler handling of plant compounds.
Can OSN perform winterization?
Yes. With the appropriate membranes, OSN systems can remove fats and waxes at cold temperatures, allowing winterization to occur on the same platform used for solvent recovery.
Can OSN assist with color or pesticide remediation?
Certain membrane configurations enable selective removal of pigments and unwanted impurities, making OSN a flexible technology for additional cleanup steps after extraction.
Is OSN suitable for both R&D and large-scale production?
Yes. The X-Spiral lineup covers lab-scale, commercial-scale, and industrial-scale needs, making OSN a fully scalable solution for evolving cannabis and hemp operations.
How difficult is installation?
Installation is straightforward. Each X-Spiral system is skid-mounted and designed to integrate easily with existing tanks, pumps, and utility connections.
How much maintenance is required?
Maintenance is minimal and typically involves routine membrane monitoring and basic cleaning. The lack of heating and cooling cycles reduces system wear compared to traditional evaporators.
Do OSN systems qualify for energy-efficiency rebates?
Yes. Because OSN systems use far less energy than heat-based recovery equipment, many facilities qualify for utility rebates that can significantly offset upfront costs.
Can OSN technology scale with production growth?
All X-Spiral units feature modular, expandable designs, allowing facilities to add membrane racks or upgrade capacity as throughput needs increase.
Which model is right for you?
| Specification | X-Spiral 2.5 | X-Spiral 4 | X-Spiral 8 |
|---|---|---|---|
| Solvent Recovery Rate | 30–120 gal/h | 180–360 gal/h | 800–1,600 gal/h |
| Winterization Rate | 360 gal/h (10% saturation) | 1,080 gal/h (10% saturation) | 1,080 gal/h (10% saturation) |
| Color Remediation Rate | 30 gal/h (10% saturation) | 90 gal/h (10% saturation) | 90 gal/h (10% saturation) |
What are the advantages of nanofiltration membrane technology?
Membrane technology offers several benefits for cannabis and hemp processors compared with traditional solvent recovery methods. Because the process works at low temperatures and avoids evaporation, it helps protect sensitive cannabinoids and terpenes from degradation. This gentler approach also reduces the overall energy load, making day-to-day operation more efficient and cost-effective. The system runs smoothly without the constant heating and cooling cycles seen in other equipment, which contributes to longer lifespan and easier maintenance. Another advantage is the flexibility—membranes can be selected or swapped to support different goals such as winterization or color remediation. Altogether, membrane filtration provides a cleaner, more controlled, and more sustainable way to manage solvent recovery and purification in extraction labs.
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