Temperature Control Units
Key Features
- Durable Construction: Superior stainless-steel bodies resist rust.
- Energy Savings: Closed circulation system conserves energy.
- Safety Assurance: Includes overload, over-temperature, and over-current protection.
- Multiple Temperature Control Modes: Includes pre-cooling and heating systems.
- Easy Maintenance: Quick fluid temperature adjustments and an exhaust valve for liquid replenishment.
GWSI Advanced Laboratory Temperature Controllers
for Every Need
GWSI Recirculating Chillers
Runnning in low noise with reliable performance.
Suitable for CBD extraction.
Main Data
- Temp Range: -30~5℃
- Temp Stability: ±2℃
- Pump Flow: 20l/min
- Pump Pressure: 0.4bar
Equipped with filter device to avoid pipe blockage.
Suitable for resin synthesis.
Main Data
- Temp Range: -30~5℃
- Temp Stability: ±2℃
- Pump Flow: 20l/min
- Pump Pressure: 0.4bar
You can see the liquid level in the reservoir inside.
Suitable for laboratory synthesis reaction.
Main Data
- Temp Range: -30~5℃
Temp Stability: ±2℃
Pump Flow: 20l/min
Pump Pressure: 0.4bar
Use CFC-free green refrigerant meet international standard.
Suitable for laboratory synthesis reaction.
Main Data
- Temp Range: -30~5℃
- Temp Stability: ±2℃
- Pump Flow: 20l/min
- Pump Pressure: 0.4bar
Superior circulatory system to avoid refrigerant volatilization.
Suitable for biological fermentation.
Main Data
- Temp Range: -15~25℃
- Temp Stability: ±2℃
- Pump Flow: 17l/min
- Pump Pressure: 0.2bar
International brands compressor with CE certification.
Suitable for metallurgy.
Main Data
- Temp Range: -20~25℃
- Temp Stability: ±2℃
- Pump Flow: 20l/min
- Pump Pressure: 0.4bar
GWSI Heating Circulators
GWSI SY-20-250 Heating Circulators is anti-corrosion with stainless steel material.
Suitable for Petrochemical.
Main Data
- Model: SY-20-250
- Temp Range: RT~250℃
- Temp Stability: ±0.5℃
- Pump Flow: 42l/min
- Pump Pressure: 2.8 bar
You can adjust the fluid temperature quickly with to SY-50-250 Heating Circulators.
Suitable for process reaction.
Main Data
- Model: SY-50-250
- Temp Range: RT~250℃
- Temp Stability: ±0.5℃
- Pump Flow: 42l/min
- Pump Pressure: 2.8 bar
GWSI SY-100-250 Heating Circulators features in closed circulatory system.
Suitable for experiments.
Main Data
- Model: SY-100-250
- Temp Range: RT~250℃
- Temp Stability: ±0.5℃
- Pump Flow: 100l/min
- Pump Pressure: 1.5 bar
GWSI Refrigerated Heating Circulator
Wide temperature control range.
Suitable for chemical plant.
Main Data
- Model: ZT-20-200-80H
- Temp Range: -80~200℃
- Temp Stability: ±0.5℃
- Pump Flow: 30l/min
- Pump Pressure: 1bar
Heating & cooling in shortest time.
Suitable for smelter.
Main Data
- Model: ZTM-50-200-40
- Temp Range: -40~200℃
- Temp Stability: ±0.5℃
- Pump Flow: 30l/min
- Pump Pressure: 1bar
Multi safety protection functions.
Suitable for pharmaceutical factory.
Main Data
- Model: ZT-100-200-80H
- Temp Range: -80~200℃
- Temp Stability: ±0.5℃
- Pump Flow: 40l/min
- Pump Pressure: 1.2bar
Why Choose Us for Temperature Control Solutions?
In the competitive laboratory temperature control units market, GWSI stands out by delivering reliable, cutting-edge temperature control solutions that address diverse laboratory needs with precision and quality.
30+ Years of Expertise
With over three decades of industry experience, we use advanced machinery and R&D to deliver top-performing water chiller and heater for lab and industrial use.
130+ Patents
Our collaboration with top universities and factories has resulted in numerous innovative products, highlighting our leadership in the temperature control unit design.
Specialized precision workshops
GWSI operates 7 specialized workshops focused on design, assembly, quality control, and customization, ensuring precision and efficiency as a temperature control units manufacturer.
Premium One-stop Solution
We provides a one-stop solution, offering a complete set of lab equipment including rotovaps, glass reactors, vacuum pumps, and refrigerated circulators for seamless laboratory system.
Global Shipping
We have agents and distributors in the USA, Canada, Australia, Russia, and South Korea, making us a globally trusted partner for your lab temperature control needs
Rapid Respond
Our expert team provides prompt support and maintenance within 24 hours, ensuring your laboratory chiller and heater run efficiently and reliably.
Customer Collaboration Process for Laboratory Temperature Control
As part of our organized approach, every step of the process has been made easy. Customers begin with inquiries and plans for options like lab chillers, thermostatic water baths or tailored temperature control equipment for certain purposes.
Customers accept and confirm their order after a detailed quotation has been submitted and this is how we will begin production. Finally, we deliver high-quality temperature control equipment, ensuring both efficiency and quality standards are met, providing reliable solutions for precise lab applications.
Applications of Lab Temperature Control Systems
in Research and Industry
Laboratory Equipment Cooling
Semiconductor Equipment Cooling
Pharmaceutical Temperature Control
Material Testing
Petroleum and Viscosity Testing
Thermostatic Calibration
GWSI Temperature Control quipment Related Products
FAQs about GWSI Temperature Control System

The recirculating chiller is one of the lab scientific instruments work with rotary evaporators and glass reactors.
Recirculating Chiller is a cooling water equipment that can provide constant temperature, constant current and constant pressure.
The function of Recirculating Chiller is to take away the heat generated by other equipment through relatively low temperature water, so as to keep the temperature of the equipment part at a level required for production.
Recirculating chillers is suitable for chemical, biological and physical testing experiments that need to maintain low temperature conditions.

Here is the truth:
The recirculating chiller can be used in combination with glass reactor, rotary evaporator, vacuum freeze-drying box, circulating water vacuum pump, magnetic stirrer and other instruments.
It has the function of providing low-temperature liquid and low-temperature water bath.
Here we list the main tips when choosing recirculating chiller.
Confirm the Temperature Range for Recirculating Chiller
This is easy to understand.
Different experiment test require different temperature.
As the main function of recirculating chiller is to cool down temperature.
The lower the temperature, the higher the recirculating chiller price will be.
Matching Equipment For Recirculating Chiller
Look:
You can combine Recirculating Chiller with different laboratory equipment such as glass reactor and rotavap, etc.
If you want to use it with a glass reactor, you need to confrim refrigerant for the jacket of the kettle body or to connect the condenser for condensation collection.
The Volume of Coolant for Recirculating Chiller
The larger the volume of coolant, the more coolant is installed, so the amount of cooling is greater, and its price is relatively expensive.
Recirculating Chiller Application Environment
This is important for the choice on recirculating chiller.
If the application environment is corrosive, you need to use a stainless steel cabinet for recirculating chiller and pay higher price.

Heating circulators is closed water-cooling high temperature circulator providing cooling water with constant temperature, constant current and constant pressure.
Heating circulators heat the materials in the supporting reaction vessel through the heat transfer fluid outputed by the circulating pump.
Heating circulators is suitable for jacketed reactor, chemical pilot reaction, high temperature distillation, semiconductor industry, etc.

Do you want to know what types of heating circulator to choose for your glass reactor?
Look:
Heating Circulator is mainly designed for glass reactor to make the synthetic reaction.
A reliable synthetic heating circulator supplier will confirm with you the following factors to help you find suitable type.
Glass Reactor Capacity
Here is the truth:
You need to know the capacity for your glass reactor when choosing heating circulators.
The larger capacity glass reactor will require larger flow for the heating circulator and you need to pay more money for it.
Instead, you just need to pay less if you choose a smaller one.
Temperature Range for Heating Circulator
This is another important factor about choosing heating circulator.
You should know what temperature degree you need before buying heating circulator.
The highest temperature for glass reactor is 200℃ and it is recommend to choose heating circulator meeting this temperature range.

Refrigerated Heating Circulator is a temperature control instrument that can perform cooling and heating functions.
The refrigeration and heating circulator mainly uses circulating heating and cold and heat, and the fully closed circulating pipeline reduces the contact area of the heat transfer medium and reduces the loss of heat transfer oil.
Refrigeration and heating circulators generally use heat transfer medium or refrigerant to perform refrigeration and heating cycles in pipeline circulation refrigeration and heating to achieve the temperature target change.
The refrigerating and heating circulator is a fully enclosed circulating line temperature control. It does not need to replace the heat transfer medium at high or low temperature, and can directly cool down at 300 degrees to reach the required temperature.
The operational performance of thermocontrol devices such as water baths or TCU temperature control units (TCUs) has an impact on the quality and accuracy of the experiments performed.
For example, in studies involving enzymes, a temperature change in the sample induces differences in the reaction velocities and thus the results become misleading. A thermostatic bath is used during incubations to stabilize temperatures enabling precise kinetic data to be generated.
On the same note, TCUs have a vital role in the provision of homogenous conditions during critical operations such as semiconductor tests or evaluating catalysts since any change in the conditions will greatly affect the performance. Taking into consideration the nature of the performed experiments it is obvious that thermal enclosure is an absolute necessity for consistent and trustworthy experimental evidence.
Precise Control for Evaporation: laboratory thermostats and water bath laboratory units allow constant temperature application which is essential for the rotary evaporators operation as it reduces overheating or overcooling tendency which may distort the end product.
Stable Reaction Conditions: The utilization of temperature control equipment ensures that glass reactors operate under optimal and specified reaction conditions which increases the yield as well as the quality, of chemical products.
Improved Reproducibility: Every Scientist aims to achieve cut-throat results and controlled temperature equipment has also allowed everyone to have more or less the same resuts because temperature difference or variation is reduced.
