Rotary Evaporator Working Principle:
The rotary evaporator operates by rotating the evaporation flask at a constant speed while the water bath maintains a stable temperature. Under these conditions, the material forms a uniform thin film along the inner wall of the flask, allowing rapid and efficient evaporation.
Evaporation efficiency is significantly improved under vacuum conditions (requires connection to a vacuum pump). As the solvent vapor passes through the glass condenser coil, it is cooled by a circulating cooling system and condensed back into liquid form, which is then collected in the receiving flask for reuse.
To form a complete working system, this series of rotary evaporators must be equipped with:
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Vacuum devices (circulating water, rotary vane, diaphragm, or other vacuum pumps)
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Cooling and circulation devices for efficient condensation
Basic Configuration
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All parts in contact with materials are made of high borosilicate glass (expansion coefficient 3.3) and PTFE, ensuring chemical stability and excellent corrosion resistance.
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Main support frame constructed from high-strength aluminum alloy for durability and stability.
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Sealing system utilizes a PTFE + fluororubber composite seal for reliable vacuum performance.
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Piston-type feeding valve with a PTFE extension tube allows for continuous feeding under vacuum conditions.
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Upright, double-layer serpentine condenser for efficient heat exchange and condensation.
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Rotating and heating functions are controlled by a power switch with a convenient tilt-type ON/OFF button.
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Large LCD display shows temperature and rotation speed simultaneously for easy monitoring.
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Brushless motor ensures spark-free, low-noise, and stable operation.
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Electronic stepless speed control with fine-tuning knob for precise adjustment.
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Heating bath made of aluminum alloy with Teflon coating, featuring a sealed heating plate and PT100 external temperature sensor for accurate control.
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Electric lift mechanism with manual tilt switch allows smooth and easy adjustment of the main unit height.
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Dual fuse protection for both rotation and heating systems ensures operational safety.
