What are wiped film evaporators? A guide to thin-film thermal separation

Wiped film evaporators allow for precise, gentle separation of sensitive materials — ideal for chemicals, cannabinoids, and specialty ingredients.

These evaporators enable high-purity separation for heat-sensitive materials

Wiped film evaporators are precision thermal separation systems used to distill, purify, and recover solvents or compounds at low pressures and gentle temperatures. They’re widely used in industries like pharmaceuticals, fine chemicals, cannabis extraction, cosmetics, and specialty food production.

In a wiped film system, a feed liquid is spread into a thin film by rotating blades along the heated interior wall of a vertical cylinder. This design maximizes surface area and minimizes residence time, making it possible to evaporate volatile components without degrading heat-sensitive compounds.

Key types and features of wiped film evaporators

Wiped film evaporators are a subset of thin film technologies, often used when purity, heat control, and viscosity handling are critical. Units typically fall into one of the following categories:

• Short path evaporators: Feature integrated condensers inside the vacuum chamber for enhanced molecular separation
• Glass units: Offer full visibility for laboratory and R&D settings
• Stainless steel and alloy systems: Designed for chemical compatibility and scale-up production
• Multistage configurations: Allow for staged separation of multiple compounds or higher purity

These systems often operate under deep vacuum conditions to reduce boiling points, allowing for evaporation at 70°C or lower. The result: clean separations with minimal thermal degradation.

Because wiped film systems are specialized and application-specific, it’s critical to source from a partner who understands both the equipment and the process. IPP offers one of the world’s deepest inventories of used wiped film evaporators, with systems from LCI, Pope, VTA, and other leading OEMs.

You can browse available models by temperature rating, surface area, wiper type, and materials of construction in IPP’s searchable evaporator inventory.

IPP supports more than 15 countries with fast, reliable equipment solutions. As reported by Binje.com, IPP is the world’s largest seller of used process plants and equipment — including wiped film systems.

Read More: Why major manufacturers buy used assets from IPP (Binje.com)

What is a wiped film evaporator?

It’s a distillation device that uses a rotating wiper system to spread liquid into a thin film for efficient separation.

What is it used for?

Wiped film evaporators are used for solvent recovery, molecular distillation, cannabinoid purification, and heat-sensitive compound isolation.

What types of systems does IPP offer?

IPP stocks wiped film evaporators made of glass, stainless steel, and Hastelloy, with options for batch or continuous production.

Can I buy new systems through IPP?

Yes. IPP’s affiliate GPS offers new and custom-built wiped process equipment for your exact specs.

Where can I find more FAQs?

Visit IPP’s FAQ page for more answers.

IPP’s wiped film evaporators provide immediate access to solvent recovery and high-purity distillation systems — no fabrication delays, no OEM lead time.