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807, No.12 Dekang Road, Tongdewei, Baiyun District, Guangzhou City
Guangzhou Hangxin Scientific Instrument Co., Ltd
807, No.12 Dekang Road, Tongdewei, Baiyun District, Guangzhou City

NAI-HL12S Water cooled Boiling Water Bath Heating Reflux Device Extraction Instrument
In order to accelerate chemical reactions that are slow or difficult to carry out, laboratories often use reflux and condensation devices to ensure complete reaction and prevent reactants, products, or solvents from evaporating out of the system. The Naiai Intelligent Water Bath Condensation Reflux Extraction Instrument (Boiling Water Bath Heating Reflux Device) uses an intelligent constant temperature water bath instead of a traditional water bath pot, and comes standard with 12 heating units to meet the needs of large sample sizes; Built in four temperature measurement points and high-temperature resistant circulating water pump to ensure uniform temperature control of the water bath; One click start, automatic temperature control, and automatic water replenishment for water shortage. It can also automatically drain water, avoiding the growth of bacteria for a long time. Applicable to the pre-treatment of food and food packaging items, as well as experiments on sample extraction, content determination, physical and chemical identification in traditional Chinese medicine research institutions, processing enterprises, production enterprises, etc.
The determination method of extracts in the Chinese Pharmacopoeia includes alcohol soluble hot soaking method, fat and fat oil determination method, and traditional Chinese medicine extraction reflux method
National Food Safety Standard - Determination of Starch Total Acid, Vitamin A, D, E Fatty Acids in Food
GB 31604.5-2016 National Food Safety Standard Determination of Extracts in Resin of Food Contact Materials and Products
GB/T 5009.127-2003 Determination of Germanium in Polyester Resin and Its Shaped Products for Food Packaging
GB/T 8021-2003 Petroleum products Determination of saponification value
GB/T 10345-2022 Analytical Method for Baijiu (Determination of Total Esters and Esters)
Soil Analysis Technical Specification - Determination of Boron in Soil by Imine-H Colorimetric Method (Boron Extraction Reflux Device - Quartz Condensation Reflux Extraction Instrument)
1. The instrument body adopts a frame integrated design, which is stable and reliable. The main body is made of 1mm thick brand cold-rolled plate with electrostatic powder coating, which is more wear-resistant and corrosion-resistant;
2. From air to contacts, relay protectors to button switches, etc., use Chint/Delixi or equivalent electrical brands to ensure instrument quality and service life;
3. PLC control, strong and stable performance, 7-inch touch screen operation and display can be accessed with just one touch, and all function settings are integrated into the screen;
4. Fully automatic water level control, automatic water replenishment for water shortage (buzzer alarm), automatic emptying of the water tank (built-in protection mechanism can only be activated below 40 ° C), avoiding long-term growth of bacteria;
5. 12 samples are operated synchronously, with a water temperature of up to 100 ℃, meeting the temperature requirements for boiling water bath reflux. The built-in circulation pump system ensures uniform and constant water bath temperature;
6. Three high-power fans are standard installed directly behind the condenser tube, and the conical bottle is rapidly cooled after the experiment is completed;
☆7. Built in 4 temperature measurement points, heating temperature and time can be set arbitrarily; One click heating reflux condensation, the reflux process is automatically completed, and the power is automatically turned off to stop heating (beep reminder) when it ends;
☆8. Standard air-cooled burr condensation tube, or optional large head water-cooled burr condensation tube (can be connected to an external chiller to improve condensation reflux efficiency);
☆9. In addition to single-stage temperature control, it provides a five stage program temperature control mode with temperature curve recording function, which can be reversed after the experiment is completed;
10. There are 12 plastic trap covers on the sink mouth to reduce steam overflow, and 6 stainless steel sealed covers on unused heating holes to save energy and reduce consumption;
☆11. The top of the machine is equipped with a foldable condenser tube support bracket, which is more convenient and safe for taking conical bottles;
12. The touch screen comes with an instruction manual and a QR code for the service center, which can be automatically viewed by scanning the code with a mobile phone and linked to the service center with just one click.
| Product Model | NAI-HL12S | |
| version type | Air cooled version | Water cooled version |
| condenser tube | Burr reflux condenser tube | Big head water-cooled burr reflux condenser tube |
| chiller | no need | Optional CW5200 |
| control system | PLC+7-inch touch screen | |
| Heating method | Internal circulation heating water bath, with uniform and constant water bath temperature | |
| Temperature control method | Single stage temperature control, supports five stage program temperature control, with temperature curve | |
| Temperature measurement method | 4-channel probe | |
| heating unit | 12 digits | |
| Heating the sample | Standard 250ml triangular flask | |
| Water bath control | Automatic water intake, automatic drainage, automatic water shortage alarm and replenishment | |
| Sample cooling fan | 3-digit high-power | |
| Plastic trap cover plate | 12 of them | |
| Stainless steel sealing cover plate | 6 of them | |
| Condenser tube support bracket | 12 digits (foldable) | |
| time control | 0-999min | |
| Empty switch protection | have | |
| Total machine power | 2500W | |
| rated voltage | 220V/50HZ | |
NAI-HL12S Water cooled Boiling Water Bath Heating Reflux Device Extraction Instrument

