Xinzhuang rotary evaporator does not allow dry burning
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Shanghai Xinzhuang Instrument Co., Ltd. is a professional manufacturer of the LNB brand Rotary Evaporator, known for its energy efficiency and environmental friendliness. With advanced technology and a strong development team, the company ensures high-quality products that are both safe and cost-effective. The company has a dedicated group of skilled technicians and follows the core values of "integrity, professionalism, innovation, and growth." It strives to provide customers with meticulous service and reliable support.
When using the vacuum pump, if the system fails to achieve proper vacuum, check the following: Is the bottle sealed properly? Is there any leakage in the vacuum pump itself? Are the sealing rings in place? Installing an external vacuum switch can help improve recovery and evaporation rates.
During the feeding process, the system uses vacuum pressure to draw liquid into the rotating flask via the feed tube. Make sure the liquid does not exceed half the volume of the flask. Continuous feeding is possible, but be cautious: 1. Turn off the vacuum pump first, 2. Stop heating, and 3. After evaporation stops, slowly open the valve to prevent backflow.
The instrument should be heated using a specially designed water bath. Always add water before powering on. The temperature control range is 0–99°C, but due to thermal inertia, the actual water temperature may be about 2°C higher than the set value. Adjust accordingly for accurate results. For example, when a water level of 1/3–1/2 is needed, use the connector to remove the power plug.
Turn on the electric control box and adjust the knob to the optimal evaporation speed. Avoid sudden fluctuations in the water bath and ensure cooling water is running.
To recover the solvent, first open the feed switch to release pressure, then turn off the vacuum pump and collect the solvent from the collection bottle.
**Precautions:**
- Apply a layer of vacuum grease on the equipment before installation to ensure a tight seal.
- Always fill the heating tank with water before energizing to avoid damage from dry burning.
- For RE-201D models, make sure the device is securely screwed into the fuse hole to protect the flask.
- If the vacuum cannot be achieved, check:
1. All connections and interfaces for proper sealing.
2. The condition of the sealing rings and surfaces.
3. Whether vacuum grease is applied between the main shaft and the sealing ring.
4. Any leaks in the vacuum pump or its tubing.
5. Check for cracks or damage in the glass components.
For more information about solid-phase extraction technology, contact Shanghai Xinzhuang Instrument Co., Ltd. Our senior engineers are ready to answer your questions. As an independent manufacturer, we produce and develop the LNB brand, offering a wide range of applications, high stability, and quality assurance. We are committed to delivering the best products and services, building trust with our users and creating a legacy of excellence.