| Glass Vessel Volume | 5 L Cylindrical |
| Glass Vessel Lid Diameter | Φ 205 mm |
| Jacketed Volume | 800 ml |
| Dropping Funnel | 500 ml |
| Temperature Range | -80℃ to 250℃ |
| Temperature Measurement Accuracy | +/-1℃ |
| Stirring Speed | 0 to 1400 rpm |
| Vacuum Degree | 0.0098 Mpa |
| Power Consumption | 90 W |
| Power Supply | 220V/50Hz |
| Condenser Dimension (D×H) | 60×450 mm |
| Dimensions (W×D×H) | 330×410×1480 mm |
| Weight | 32.5 kg |
Built-in safety pressure vent
Energy-efficient motor design
Quiet operational noise level
Vacuum-compatible port design
Large lid diameter opening
Jacketed Glass Reactor LJGR-A21 enables controlled chemical reactions by regulating internal temperature through circulating fluid. This supports reliable synthesis, distillation, crystallization, and solvent recovery in research and development environments.
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Jacketed Glass Reactor LJGR-A21 Catalog
Available Range :
Jacketed Glass Reactor LJGR-A10 : 1 L Cylindrical Jacketed Glass Reactor LJGR-B21 : 10 L Jacketed Glass Reactor LJGR-A22 : 10 L Cylindrical Jacketed Glass Reactor LJGR-B24 : 100 L Jacketed Glass Reactor LJGR-A26 : 100 L Cylindrical Jacketed Glass Reactor LJGR-B26 : 100L Jacketed Glass Reactor LJGR-A27 : 150 L Cylindrical Jacketed Glass Reactor LJGR-A11 : 2 L Cylindrical Jacketed Glass Reactor LJGR-B22 : 20 L Jacketed Glass Reactor LJGR-A23 : 20 L Cylindrical Jacketed Glass Reactor LJGR-B25 : 200 L Jacketed Glass Reactor LJGR-A28 : 200 L Cylindrical Jacketed Glass Reactor LJGR-A12 : 3 L Cylindrical Jacketed Glass Reactor LJGR-A24 : 30 L Cylindrical Jacketed Glass Reactor LJGR-B20 : 5 L Jacketed Glass Reactor LJGR-A50 : 5 L (Cylindrical) Jacketed Glass Reactor LJGR-A17 : 5 L Cylindrical Jacketed Glass Reactor LJGR-A13 : 5 L, Cylindrical Jacketed Glass Reactor LJGR-B23 : 50 L Jacketed Glass Reactor LJGR-A25 : 50 L CylindricalJacketed Glass Reactor supports controlled mixing with adjustable stirring speed, ensuring consistent reaction dynamics in varied experiments. They maintain thermal stability using a jacketed layer for fluid circulation without exposing the medium. Their borosilicate glass build withstands thermal stress and chemical exposure over time. These systems include a display panel for monitoring key parameters during operation. Our glass reactor is suited for synthesis, distillation, extraction, crystallization, and pharmaceutical development.








Our Jacketed Glass Reactor uses a dual sealing system made from PTFE and fluororubber, creating a strong vacuum seal that prevents leaks effectively. This stable vacuum environment is essential for processes like distillation or concentration, which rely on reduced pressure. The system safeguards both the reaction mixture and the lab environment by containing volatile substances. This vacuum control helps maintain consistent reaction conditions and reduces the chance of external contamination or fluctuations, supporting reliable outcomes even during long experiments. The sealing materials also provide chemical resistance, ensuring durability over multiple uses. This attention to sealing technology helps maintain safety standards and extends the reactor’s operational lifespan.
Labtron’s Jacketed Glass Reactor features a dual-layer jacket that circulates thermal fluid between two glass walls, ensuring even temperature distribution around the vessel. This arrangement avoids hot or cold spots that could affect the chemical process. By maintaining a stable thermal environment, the system helps reactions proceed smoothly, even when temperature adjustments are needed mid-process. This layered design also aids in achieving consistent results and supports a variety of reaction types that require stable heating or cooling. The ability to control temperature accurately expands the range of experiments possible, from simple synthesis to complex pharmaceutical development. Moreover, it reduces the risk of overheating, which can degrade sensitive compounds.
The Jacketed Glass Reactor is made from high-quality borosilicate glass, which withstands harsh chemicals and thermal stress without damage. Labtron’s selection of this glass type allows the reactor to handle aggressive substances like acids, bases, or solvents safely. Its resistance to corrosion and heat ensures the vessel remains intact during demanding reactions. Additionally, the glass allows users to visually monitor the reaction’s progress and detect changes quickly, making it well-suited for chemical, pharmaceutical, and research applications. The robust glass construction also minimizes the need for frequent replacements, offering cost efficiency over time. This durability means users can confidently run reactions at higher temperatures without compromising safety.
Our Jacketed Glass Reactor includes a fixed external loop buffer that keeps the thermal fluid flowing steadily through the jacket system. This buffer helps avoid interruptions or changes in flow that could cause temperature variations. A smooth and continuous circulation enhances heat transfer efficiency, which supports maintaining steady temperature conditions throughout the experiment. The external loop buffer also helps prevent pressure fluctuations in the system, contributing to safer and more reliable operation during extended use. It additionally reduces wear on the circulation pump by stabilizing fluid dynamics, leading to longer equipment life. This design feature is particularly valuable during long, continuous synthesis runs where temperature stability is critical.
The Jacketed Glass Reactor is designed with flexibility, allowing users to add components like condensers, dropping funnels, or reflux columns as needed. Labtron’s design makes it easy to customize the setup for various experimental requirements, including complex synthesis or purification steps. This modularity saves time and costs by enabling adaptation without replacing the entire system. It also improves safety and control by allowing better management of reaction conditions during more intricate procedures. The availability of standardized connection ports ensures compatibility with many commercial accessories, expanding its usability. This adaptability supports evolving research needs and helps streamline laboratory workflows.
Our Jacketed Glass Reactor offers adjustable stirring speeds to support a wide range of mixing needs, from gentle to vigorous agitation. This versatility helps ensure that reactants are evenly distributed and temperature is consistent throughout the mixture. The stirring system is built for continuous operation, which is important for lengthy experiments requiring steady mixing. Its design also minimizes wear and avoids disruption of delicate reactions, making it reliable for both research and industrial applications. The motor and impeller materials are chosen to resist chemical degradation, maintaining performance over repeated cycles. This careful engineering supports experiments requiring both slow mixing and high-speed agitation without mechanical issues.
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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608