High Vacuum Wiper Distillation Machine Stainless Steel Wiped Film Distillation System

Specifically engineered for the nutraceutical and pharmaceutical industries, this Wiped Film Distillation (WFD) system provides a continuous, high-efficiency solution for purifying high-value, heat-sensitive compounds. Capable of processing materials with viscosities that challenge conventional distillation, it utilizes a high vacuum environment and precise, uniform heating to separate target fractions with minimal thermal degradation. This system is the definitive choice for manufacturers aiming to maximize product purity, preserve biological activity, and scale production seamlessly from pilot to full commercial operation. Designed to meet stringent cGMP standards, it ensures your concentrates consistently exceed industry quality benchmarks.

Traditional multi-stage distillation methods often prove destructive for delicate biological molecules. When processing crude fish oil, algal oil, or deodorizer distillates for high-concentration Omega-3 fatty acids (EPA/DHA) and natural Vitamin E (tocopherols), extended residence time at elevated temperatures is catastrophic. Long hours in a heated reboiler induce thermal cracking, polymerization of unsaturated bonds, and the creation of harmful trans-isomers. This not only drastically reduces the yield of your active pharmaceutical ingredients (APIs) but also degrades the sensory profile, creating off-flavors and dark colors that necessitate extensive and costly post-processing. This thermal degradation directly undercuts capital investment and prevents you from reaching premium-purity tiers that command the highest market prices.

Our Wiped Film Distillation system solves this problem by fundamentally re-engineering the evaporation process. Instead of heating a bulk liquid pool, the system continuously feeds feedstock onto a heated vertical cylinder. Precision-tolerance PFTE or graphite wiper blades instantly spread the liquid into a highly turbulent, uniform film just 0.1 to 0.5 millimeters thick. This ultra-thin film, coupled with a deep vacuum of up to 0.001 mbar, enables light fractions (like Omega-3 ethyl esters or free tocopherols) to evaporate in a matter of seconds. They then traverse a short path to an internal condenser for immediate recovery, while heavier, non-distillable residues flow out separately. This single-step "flash" separation preserves the native molecular structure, color, and flavor of your active ingredients, achieving purities above 90% in a fraction of the time of conventional stills, maximizing throughput and minimizing waste.

• Pharmaceutical APIs: High-purity Omega-3 (EPA/DHA) ethyl esters and concentrates.

• Nutraceuticals: Natural Vitamin E (mixed tocopherols & tocotrienols) from soy or palm oil.

• Carotenoids: Concentration of beta-carotene and astaxanthin from extracts.

• Phytosterols: Separation and recovery of sterols from vegetable oil deodorizer distillates.

Feedstock enters the top of the heated body and is distributed by a rotor basket. As the rotor spins, spring-loaded or fixed-clearance wipers press the liquid against the wall, creating a dynamic, constantly renewing thin film. The external jacket uses thermal oil or steam to heat the column. Volatile components instantly evaporate, fly across the vapor gap, and condense on the centrally located internal condenser. The distillate and residue continuously exit through separate discharge ports, ensuring a true continuous process with no liquid pooling or channeling.

Selecting the correct system hinges on matching surface area and vacuum to your purity goals. For an initial pilot phase, our 0.1m² glass-body or small-scale SS316L unit allows critical process parameter (CPP) screening. When scaling to production, calculate your required capacity in kg/hr against the evaporation rate of your target molecule at its safest operating temperature. The volatility differential between your API and waste fraction dictates the geometry; a higher ratio demands an internal condenser design. Always select a system with variable frequency drive (VFD) on the rotor for unmatched flexibility with varying feed viscosities. Crucially, insist on a hot-condenser design if dealing with high-melting-point distillates to prevent in-situ solidification.

1. Q: What is the maximum Omega-3 concentration achievable in a single pass?
   A: While dependent on feed quality, our systems routinely achieve 70-90% total EPA+DHA in the distillate from a 30% crude ethyl ester feed in a single, rapid pass, preserving the critical cis-double bond configuration.

2. Q: Can this system handle the waxy/sticky residues from this process?
   A: Absolutely. This is a key advantage over packed columns. The high-torque rotor and positive-displacement residue pump are engineered to continuously discharge heavy, waxy, and viscous Omega-3 residues without clogging, ensuring non-stop processing.

3. Q: Is the system suitable for meeting USP/EP monographs?
   A: Yes. The conformance-ready design, full traceability on wetted SS316L parts, electropolished surfaces, and true CIP functionality remove microbial and cross-contamination risks, helping your final product meet stringent pharmacopeia standards.

4. Q: What about product loss during the run?
   A: Hold-up volume is exceptionally low, typically < 2% of the hourly feed rate. This minimizes losses of high-value material, especially during product changeovers, and gives a high yield recovery.

5. Q: Can we test our specific fish oil before purchasing?
   A: We encourage it. Our in-house pilot facility is available for confidentiality-protected trials. We’ll help you generate the real-world data, yield curves, and distillate quality samples to de-risk your investment before scale-up.