Brief introduction of 5L Rotary Evaporator:

A rotary evaporator is a device used in chemical laboratories for the efficient and gentle removal of solvents from samples by evaporation. Rotary evaporator is most often and conveniently applied to separate "low boiling" solvents such as n-hexane or ethyl acetate from compounds which are solid at room temperature and pressure. However, careful application also allows removal of a solvent from a sample containing a liquid compound if there is minimal co-evaporation (azeotropic behavior), and a sufficient difference in boiling points at the chosen temperature and reduced pressure.

The Zhengzhou Greatwall 5L (evaporating flask capacity) series rotary evaporators come with all PTFE valves for solvent-resistant operations. Also come with them are vertical glassware and digital temperature/rotation control. Its optimized bath volume allows for fast heat-up times. The condenser unit has specially designed glass tubes that utilize surface extremely efficient. That’s why our SolventVap delivers reliable and reproducible process results that are usually reserved for more costly systems. Another important aspect of the SolventVap are the safety features, including dry-run protection, water bath over-temp shut-off protection, and fuse protection.

Rotary evaporator features a specially designed motor and worm gear to provide constant rotation at speeds from 20 to 140 rpm. As the flask containing the solvent is rotated, it continually transfers a thin layer of liquid over the entire inner surface. This gives a very large surface area for evaporation that is effected by heating from the water bath. The rotating system is fitted with a special seal that allows the apparatus to be placed under vacuum. This reduces the boiling point of the solvents and removes the vapor phase making the process much more efficient. Each unit is also provided with an easy to use vacuum release and a continuous feed system, which allows more solvent to be drawn into the rotating flask without the need to stop the operation.

Digital water bath operates from ambient to 99°C (210°F) with PID temperature control stepping at 0.1°C. Heating coils are located directly inside the pan for the most efficient heating. Built-in overheat protector shuts down power in case of controller failure.

Standard Glassware Set includes 5 liters round-bottomed evaporating flask, 3 liters round-bottomed receiving flask, and vertical condenser. Rotary evaporators with vertical glass condenser for are good for distillation of solvents with higher boiling points.

Features of 5L Rotary Evaporator:

• Solvent-resistant PTFE and Viton gaskets ensuring long time operation.
• Specialized motor with extremely compact intermeshed worm and worm gear provide precise driving, for very quiet and vibration free operation.
• Downward condenser vacuum connector design ensures safe vacuum operation.
• Motorized water bath lifting for precise control.
• Easy, straight-forward visual operation with digital speed and temperature display.
• PID temperature controller ensures accurate temperature control is maintained.
• One year warranty and life-long service support.

Your safety is important to us! Please use caution when operating. Users of glass reaction equipment must take all necessary precautions to avoid contact with rotating parts, particularly entanglement of loose clothing, hair, necklaces, or other jewelry. Under these circumstances, the winding action of the rotating parts can draw the user(s) into the apparatus, resulting in breakage of glassware, burns, and/or chemical exposure. Extra caution must also be taken when operating with air-reactive materials, especially under vacuum. A leak can draw air into the apparatus and cause a violent reaction to occur.

Specifications of 5L Rotary Evaporator:

Electrical requirements	220V 50/60Hz single phase, (rotation motor: 40 watts)
Evaporating flask	Capacity: 5 liters Rotation speed: 10 to 140 rpm Evaporating speed: 2 liters/hour (water), 4 liters/hour (alcohol)
Receiving flask	3 liters
Water bath	Temperature range: ambient to 99°C (210°F) Temperature controller: digital Material: stainless steel Media: water Number of heaters: three Drain port: one Lifting: Motorized Maximum lifting distance: 150mm
Vacuum level	< 3 torrs(399.9Pa)
Vacuum sealing	PTFE + Viton gaskets
Safety	Dry-run, over-temp shut-off, built-in circuit breakers
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Certification:

ISO9001:2008

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