Rotary Evaporators (Lab and Industrial scale)

The transparent glass evaporation flask, vapor duct, and condenser allow complete visual control of boiling behaviour, bumping, and crystallisation while resisting attack from aggressive organic solvents and acids.

In operation, the rotating flask forms a thin film of product over the heated surface, dramatically increasing evaporation area and enabling rapid solvent removal even at reduced bath temperatures.

Integrated vacuum operation lowers the boiling point, protecting heat sensitive ingredients and shortening residence time, which is essential for APIs, natural extracts, and specialty chemicals.

Modern systems combine digital control of rotation speed, bath temperature, and lift position with high efficiency condensers and chemically inert PTFE seals to maintain tight vacuum and safe, leak free performance.

Bench top units typically handle 1–5 L flasks for routine concentration, solvent exchange, and sample drying, while pilot and industrial models with 5–50 L or larger capacities support kilo lab and production campaigns.

Typical applications include concentration of reaction mixtures, recovery and recycling of expensive solvents, preparation of plant and herbal extracts, removal of residual solvents from crystallised solids, and sample clean up for analytical labs.