Jacketed glass reactors are used to perform synthetic reactions on various materials in a temperature and vacuum-regulated environment. Each reactor has a constant pressure feeding funnel and configurable stirring rates, allowing you to add material to the vessel at a consistent and regulated rate. The built-in condenser allows some materials to be recovered at a predetermined rate of speed.


S-1L S-2L S-3L S-5L double-layer glass reactor, also known as small laboratory glass reactor, small glass reactor, laboratory small glass reactor, the double-layer glass reactor produced by our company has convenient operation, beautiful appearance. It is widely used in chemical, pharmaceutical, and other fields due to its novel and practical structure.


1. High efficiency, long operating time, good stability, and silent operation.

2. It has good chemical and physical properties due to the use of GG17 high borosilicate glass.

3. It is convenient to discharge and leaves no residue.

4. The temperature and speed are displayed digitally, making it simple to monitor and adjust the material reaction.

5. The stirring shaft is made of stainless steel and PTFE material, which is long-lasting and non-polluting.

6. Standard gear with no backlash and excellent wear resistance.

7. Borosilicate glass in high concentrations.

8. High-temperature resistance, strength, and hardness are all advantages.

9. The liner contains the reaction solvent, while the jacket includes the heating or cooling resource (cool liquid, hot water, or hot oil).

10. The temperature range of the GG-17 high borosilicate glass is -100°C to 400°C.

11. It is resistant to high acid and alkali.

12. High-temperature resistance, strength, and hardness are all desirable characteristics.

13. Feeds quickly, leaves no residue and is simple to clean.

14. The AC motor is quiet, has high torque, an automatic booster, no spark, is noise-free, and has a long life; explosion-proofing is optional.

15. It is simple to disassemble, clean, and install the Separately Kettle Cover. Temperature control is precise with the PT100 temperature probe.

16. The Digital Converter has a digital display, making temperature measurement easier and more convenient.

After Sales Services:

1. We offer free maintenance for the rest of our life.

2. We offer overseas training for our technical engineers.

3. We also provide remote technical consultation.

4. Our kit contains an installation video.

5. We deliver free replacement of some accessories

Grouped equipment:

1. SHZ-C circulating water vacuum pump.

2. DLSB low-temperature coolant circulation pump.

3. GYY circulating water (oil) bath.

4. GDX high and low temperature integrated machine.

What is a Double Layer Glass Reactor?

As a category of 5l glass reactor, double-layer glass reactors stir the reaction medium with hot water or hot oil as the heating reaction. An oil bath pot can be added as needed to cool the cooling coils to cool the reaction at a constant temperature in a closed double layer glass reactor. According to the requirements of stirring the reaction at atmospheric pressure or vacuum conditions, reflux and distillation of the reaction solution are modern fine chemicals, bio-pharmaceuticals and new materials over the synthetic test, production equipment. Various synthesis reactions may be solvent at a constant temperature. The reaction part of the instrument can be a fully sealed structure, continuous use of negative pressure suction variety of liquids and gases. It can also be done reflux or distillation at different temperatures.

Ancillary Equipment:

Circulating water vacuum pump: To provide a vacuum source

Cool chiller: low-temperature reaction and Re-flux, condensation

Circulating water/oil bath: Thermal power

High and low-temperature machine: high and low-temperature experiment reaction


. To achieve circulating heating or cooling experiment, a double-glazed designed glass reactor with a liner for reaction solvent and a jacket for heating or cooling resource (cool liquid, hot water, or hot oil). And its auxiliary equipment—a high and low-temperature machine capable of satisfying functional high and low-temperature reaction experiments.

Features :

1. GG17 high-borosilicate glass with nice physical-chemical properties; experiment temperature -100 to 400 degree C; Resistant to strong acidic properties of materials; only touching with glass parts & PTFE, no cross-contamination. Double cylinder; kettle cover is separated from kettle body. It is convenient to disassemble, clean and install.

2. Stirring adapts to mechanical sealing; it keeps a higher vacuum degree among the same products in the market. It also holds a high vacuum when stirring. Glass (PTFE) discharge valve, non-dead angle mixing, fast emptying, no residue.

3. Gear Motor – International copper wire; High efficiency, long operation, good stability, high torque, no brush, no spark; standard gears, no gap and abrasion resistance; CE Approved.

4. Constant Pressure Funnel – Temp Range -100℃~400℃; High acid and alkali resistant, high temperature resistant, high strength and hardness; Feed rapidly, no residual and easy clean.

5. Spiral Condenser – The inner tube is spiral which increases the length of the tube and makes the cooling area larger. So the condensation would be more efficient.

6. Electric Heating Mantle – Built-in chip, precise temperature control (Accuracy: ±0.1℃), easy operation, reliable performance, display directly and easy observation.


1. We package these glass items in a good, non-fumigation standard plywood case.

2. It will be determined based on your quantity. Typically, we will select International Express, Air, and Sea.

3. We typically accept TT, PayPal, Western Union, Alibaba Escrow, and L/C. The precise term will be discussed during the transaction.

4. Customized products require 1015 working days after payment is confirmed.

What is the working principle of a double glass reactor?

The double-layer reactor sandwiches the glass reactor. A constant temperature (high or low temperature) hot melt or cooling medium is injected to heat or cool the materials in the reactor at a constant temperature, with stirring presented by the double-layer glass reactor. In the reaction kettle, the materials are reacted, and the evaporation and reflux of the reaction solution can be controlled. Only when the reaction is fully completed can the materials be discharged from the discharge port at the bottom of the kettle, which is a very convenient operation.

What are the components of the double-layer glass reactor?

It comes with a glass part, stirring part, sealing part, support bracket.

What is the stirring speed of the double-layer glass reactor?

The stirring speed of the double-layer glass reactor is 0~600rmp (up to 1300).

How is the stability of the double-layer glass reactor?

The frame of the double-layer glass reactor is made of 304 stainless steel, which makes it stronger and the overall mechanism more stable.

What is the supporting equipment for the double-layer glass reactor for the high-temperature reaction?

High-temperature circulating oil bath: it circulates and serves as a heating source for the double-layer kettle, allowing precise temperature control. Integrated machine for high and low temperatures: It has both heating and cooling functions and circular heating and cooling sources for the double-layer kettle and intelligent temperature control.

What are the types of small double-layer glass reactors?

The models of the small double-layer glass reactor are S-1L S-2L, S-3L S-5L.