Shanghai Xinzhuang Instrument Co., Ltd. is a leading manufacturer of the LNB brand rotary evaporator, known for its professional design and cost-effective performance. This device is widely used in laboratories for efficient solvent recovery through evaporation under reduced pressure. Before starting, ensure that the vacuum pump is properly connected and check for any leaks. If the vacuum isn’t being maintained, verify that the bottle is tightly sealed, the vacuum pump is functioning correctly, and the sealing ring on the shaft is intact. Adding an external vacuum switch can significantly improve the evaporation efficiency and recovery rate.
The feeding process utilizes the vacuum pressure to draw liquid into the rotating flask via a hose at the feed port. Make sure the liquid level does not exceed half the volume of the flask. The system allows continuous feeding, but it’s important to follow these steps carefully: 1) Turn off the vacuum pump before adding material, 2) Stop heating, and 3) After evaporation is complete, slowly open the valve to prevent backflow. Always handle with care during this process.
When using the water bath for heating, always add water before turning on the power. The temperature control scale ranges from 0 to 99°C, but due to thermal inertia, the actual water temperature may be about 2°C higher than the set value. Adjust accordingly for accuracy. It's recommended to use water up to one-third to one-half of the tank capacity. When not in use, unplug the power supply through the connector.
To operate the device, turn on the electric control box and adjust the speed knob to achieve optimal evaporation. Avoid sudden fluctuations in the water bath temperature and ensure the cooling water is running. Once the evaporation is done, recycle the solvent by first opening the feed valve to release pressure, then turning off the vacuum pump and removing the collected solvent from the collection bottle.
Precautions: - Apply a thin layer of vacuum grease on all sealing surfaces before installation. - Never energize the heating tank without water inside. - For RE-201D models, make sure to screw the fuse into the designated hole to protect the flask. - If the vacuum cannot be achieved, check: 1) All connections and seals, 2) The condition of the sealing rings, and 3) Whether vacuum grease is applied between the main shaft and the seal.
Shanghai Xinzhuang Experimental Instrument Co., Ltd. specializes in producing a wide range of lab equipment, including constant temperature shakers, low-temperature water baths, water bath oscillators, gas bath oscillators, incubators, and more. With strong technical capabilities and advanced manufacturing processes, the company ensures high-quality products at competitive prices. Since its establishment, Xinzhuang has focused on innovation, continuously upgrading its product line to include intelligent, user-friendly, and stable instruments. This commitment to quality and reliability has made Xinzhuang a trusted name in laboratory equipment worldwide.
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