Hybrid Wiped Film Molecular Distillation Unit

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An evolved version of the glass type with greater performance

HMD Hybrid Wiped Film Molecular Distillation Unit

Lab1st hybrid type molecular distillation units, featuring a cutting-edge design that combines the durability of high-quality borosilicate glass with the efficiency of a stainless steel coil.

The borosilicate glass jacket ensures superior chemical resistance and transparency for process visibility, while the stainless steel coil enhances heat transfer efficiency. This innovative construction not only preserves the purity of delicate compounds but also maximizes operational reliability and versatility across pharmaceuticals, essential oils, and other precision industries.

Key Facts

Short residence time
Evaporation area: 0.1~0.35㎡
Heating temperature: RT~250℃
Integrating a borosilicate glass jacket with a stainless steel coil
Modular Design for flexibility and adaptability to various process requirements

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Features

Hybrid Material Construction

Combines a borosilicate glass jacket with a stainless steel coil, offering both chemical resistance and superior heat transfer efficiency. This design ensures both process visibility and durability, ideal for handling a wide range of chemical substances.

Optimized Heat Transfer

The stainless steel coil enhances thermal conductivity, ensuring faster and more efficient heating and cooling cycles. This helps in maintaining the delicate balance needed for processing thermally sensitive compounds without degradation.

Enhanced Process Visibility

The transparent borosilicate glass jacket allows operators to monitor the distillation process in real-time, providing immediate insight into phase changes, flow, and material quality, ensuring precise control over the distillation parameters.

Classification

HMD-A Series

Evaporation area: 0.1~0.35㎡
Heating temperature: RT~250℃
Feed rate: 0.75 - 17.5 kg/h [C B D throughput: 2.5 - 7 kg/h]
Main evaporator: glass main evaporator + SUS316L built-in condenser
Condensation: stainless steel dry ice cold trap
Feeding: peristaltic pump, heating belt winding heat preservation
Discharging: Glass continuous collection bottle, heating belt winding heat preservation

HMD-B Series

Evaporation area: 0.1~0.35㎡
Heating temperature: RT~250℃
Feed rate: 0.75 - 17.5 kg/h [C B D throughput: 2.5 - 7 kg/h]
Fully jacketed pipeline
Main evaporator: glass main evaporator + SUS316L built-in condenser
Condensation: stainless steel dry ice cold trap & cooling coil (with one -80℃ chiller)
Feeding: gear pump for continuous working
Discharging: gear pump for continuous working

HMD-DUO Series

Evaporation area: 2 * 0.15~0.35㎡
Heating temperature: RT~250℃
Feed rate: 2 * 0.75 - 17.5 kg/h [C B D throughput: 2 * 2.5 - 7 kg/h]
Dual Stage Hybrid Molecular Distillation Unit
Flexible configuration, based on demand

Molecular (wiped film) distillation is the best thermal separation machine for heat-sensitive material because it is the gentlest type, causing the least amount of thermal degradation of product. It is a process of separation, purification and concentration of natural products, complex and thermally sensitive molecules. The whole molecular distillation system includes supporting chillers, heaters, vacuum pumps and all accessories.

HMD Series

Adjustable Feed Flow: The equipment is equipped with a peristaltic pump that allows for precise control of the feed flow rate. Users can switch between speed and flow rate modes, ensuring accurate flow control after the pump has been calibrated for flow.
Heated Inlet and Outlet Piping: The system includes heated piping for both the feed and product lines, which helps maintain the fluidity of the material within the pipes and prevents blockages.
Excellent System Sealing: The main evaporator features a magnetic stirrer seal, vacuum valves, and well-fitted glass components, ensuring excellent gas tightness throughout the system.
Stable System Operation: The equipment is designed with a continuous collection valve that allows for the replacement of collection bottles without interrupting the system's operation.
Accurate Process Monitoring: A RO-54 vacuum gauge is used for vacuum detection, offering the ability to switch between vacuum units. This provides more precise readings compared to traditional Pirani vacuum gauges.
Flexible Skid-Mounted Modules: The system is built on a sturdy skid-mounted platform with a square steel structure, complete with forklift wheels for easy transportation without disassembly and the freedom to move within the workshop.
Advanced Control System: The equipment has been upgraded to a PLC touch screen control system, which allows for process presetting, access management, setting interlocks, and safety protections. This advanced system enables the entire set of equipment to operate autonomously without the need for human intervention.
Real-Time Process Visibility: The transparent glass design allows operators to monitor the distillation process in real-time, ensuring precise control over separation parameters and the ability to make immediate adjustments.

Title	Text
Agitate Motor Speed [rpm]	≤400
Material [Wet Part]	High Borosilicate Glass, PTFE, SUS316L
Seal Gasket Standard	Food grade fluororubber[options: PTFE]
Certification	CE [option: UL, ATEX...]
Wiper Type	Centrifugal scraper [PTFE]
Agitator Drive	Magnetically coupled drive
External Condenser	Only for HMD-B Series
External Cold Trap	√
Feeding Pump	Peristaltic pump (optional: gear pump)
Heat Preservation	Feed and Discharge: Heating tape +PT100
Holding Temperature [℃]	RT~100℃
Vacuum Pump	Air cooled diffusion pump，80L/s
System Vacuum [Pa]	≤0.1Pa [No Load]

Model [L/h]	HMD-100A/B	HMD-150A/B	HMD-200A/B
Evaporation Area [㎡]	0.15	0.25	0.35

Feeding: The feed material is introduced into the evaporator, typically through a peristaltic pump, which ensures a consistent flow.
Film Formation: The liquid is distributed along a heated surface, forming a thin film. The wipers continuously spread the liquid to maintain this thin layer.
Heating: The heated surface evaporates the volatile components of the liquid film. The thin film design allows for efficient heat transfer and rapid evaporation, minimizing the risk of thermal degradation.
Vapor Collection: The evaporated components are collected as vapor, which rises and is directed into a condenser, where it is cooled and transformed back into liquid form.
Condensation: The vaporized components travel a short distance to an adjacent cool surface (the condenser), where they condense into liquid distillate. This close proximity between the condenser and the evaporation surface is a key design feature that significantly boosts the efficiency of the condensation process.
Residue Collection: Heavier and less volatile components remain in liquid form and are gathered as residue. The design minimizes their exposure to high temperatures, reducing the risk of degradation.
Temperature and Vacuum Control: The system is capable of handling temperatures up to 250°C and vacuum levels as low as 0.01Pa. This feature enables the distillation of high boiling point materials at lower temperatures, thereby decreasing the likelihood of thermal decomposition.

Options & Customization

LAB1ST offers a comprehensive customization service for your molecular distillation units, tailored to meet your specific needs. Whether you need adjustments to suit unique applications or specialized configurations, our team ensures the perfect solution for efficient and precise evaporation.

Upgrades

GB explosion-proof, UL standard, ATEX standard, etc.
Material certification, welding records, IQ/OQ and other documents
Larger feeding tank
Feeding tank stirring function
PTFE roller scraper
Coil kit for "liquid nitrogen dry ice cold trap"
Feeding tank weighing function
Main evaporator insulation jacket
Formula wheel mobile casters
RS485 communication interface, Modbus Rtu communication protocol
Anti-corrosion sealing kit [PTFE outer sealing ring]

Cusomization Service

Customized frame to accommodate user laboratory space
Additional temperature measurement points, vacuum detection points, flow detection, etc.
Customized structural design based on process requirements
PLC touch screen control system, including process parameter setting, historical data recording, alarm setting, three-level authority, interlocking and other functions