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This section provides an overview for constant temperature baths as well as their applications and principles. Also, please take a look at the list of 27 constant temperature bath manufacturers and their company rankings. Here are the top-ranked constant temperature bath companies as of June, 2025: 1.Thermotron, 2.ORION MACHINERY Co., LTD., 3.Altmann Analytik GmbH & Co. KG.
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Postdoctoral researcher, conducting research on the production of cathode composite particles for solid-state batteries in the Equipment Engineering Group of Osaka Prefecture University.
Belongs to the Resource and Energy Recycling Laboratory, Nagaoka University of Technology, and conducts research on the development of DDR-type zeolite membranes for CO2 separation and the capture of CO2 from digestion gas generated from sewage treatment plants.
https://researchmap.jp/eiji-hayakawa
Thesis
https://doi.org/10.3390/membranes11080623
http://www.ijcea.org/index.php?m=content&c=index&a=show&catid=109&id=1177
https://www.sciencedirect.com/science/article/abs/pii/S1387181119305529?via%3Dihub
https://www.sciencedirect.com/science/article/abs/pii/S138358661833154X?via%3Dihub
A constant temperature bath is a type of apparatus used in scientific experiments.
There are two types of thermostatic chambers: one that changes the air temperature and the other that changes the water temperature (thermostatic tank). The size and specifications vary depending on the application and purpose, ranging from table-top types, large refrigerator-like types, to types in which a single room can be adjusted as a constant temperature bath.
Major types of constant temperature chambers include incubators, constant temperature dryers, constant temperature water baths, and environmental test chambers (cycle testers, constant temperature/humidity chambers, etc.). Incubators are used in scientific experiments to culture microorganisms and cells. In the industrial field, incubators are used to hatch eggs, and in the medical field, incubators are used to maintain the body temperature of low-birth-weight infants. Thermostatic dryers, thermostatic water baths, and environmental test chambers are widely used in biochemistry, organic chemistry, and other fields, and are used for a variety of analytical testing purposes.
A constant temperature bath basically consists of a vessel that maintains temperature, a heating (or cooling) device, a temperature sensor, and a temperature controller. Humidifiers and dehumidifiers are used to control humidity, and fans and agitators are installed to equalize the temperature inside the vessel, depending on the application. The temperature is varied by a heated humidifier, cooler, or dehumidifier, and maintained at the desired temperature by a temperature sensor.
Constant temperature baths are designed primarily to maintain a constant temperature, but depending on the application, the temperature can be programmed to rise and fall repeatedly at regular intervals, or to rise and fall at a constant gradient.
Setting an arbitrary program depends on the plugram device in the constant temperature bath itself and thus on the functionality of the individual product. If the product has a built-in communication interface, it can also be operated remotely using a personal computer. Data can be recorded directly into the constant temperature bath's internal memory or into an external device, depending on the application.
Constant temperature baths range in size from 30 cm to several meters on a side, and can be installed in a laboratory.
The general structure of a thermostatic chamber is that it has a door and insulation to prevent temperature changes from the surrounding environment. The inside of the chamber is sealed off from the outside world. In addition, controls are installed to maintain a constant temperature for an extended period of time.
In terms of individual components, constant temperature baths are divided into two types: those that have the entire bath covered by an outer frame and those that do not. In both cases, a case is installed to hold water, and the temperature is controlled at or below the evaporation temperature of the water. In addition, when experiments are conducted at temperatures of 100°C or higher, water cannot maintain the temperature, so some devices use oil to heat the water.
Other thermostatic dryers have timers and temperature increase programs that allow the temperature and temperature increase rate to be set according to the experimental application.
Constant temperature baths are generally used in laboratories, etc., and are often used in water/oil baths and constant temperature dryers.
Thermostatic water/oil baths are mainly used in chemical and biological experiments, where samples are placed in flasks and stirred to maintain a constant temperature.
The usage is simple: fill the tank installed in the instrument with water or oil and set the temperature. However, since experiments are conducted for long periods of time, care must be taken to avoid burns.
Constant temperature dryers and constant temperature-humidity baths are used not only in experiments but also in drying semiconductors, cultivating microorganisms, and drying various instruments.
The usage is simple: open the door, place a sample inside the chamber, set the temperature increase rate, target temperature, holding time, etc., and perform drying and sample observation. In addition to heating, some instruments are equipped with a cooling function that allows them to be used for low-temperature experiments. However, since they may use chlorofluorocarbons or other refrigerants, they need to be outsourced to a specialized contractor.
On the other hand, constant temperature baths using Peltier elements are also available in recent years. Peltier elements can perform cooling and heating by changing the direction of electric current. They are characterized by power savings, CFC-less, small size, and fine temperature control.
*Including some distributors, etc.
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Fluke Corporation, established in 1948 and based in Everett, Washington, is a manufacturer of precision calibration solutions. The company provides instrumentation and software tailored for electrical, temperature, pressure, flow, and RF measurements. These instruments are commonly utilized in calibration laboratories and process measurement instrument shops globally, including National Metrology Institutes. The companu also offers services and software solutions for assisting organizations in effectively managing assets and operations, with support ranging from individual to enterprise-level integration.
Eppendorf, founded in 1945 with headquarters in Germany, is a manufacturer and supplier of laboratory equipment, instruments, and consumables. The company's product line includes pipettes, pipette tips, centrifuges, mixers, and ultra-low-temperature equipment. Eppendorf's products are used in academic and commercial research laboratories as well as in the pharmaceutical, biotechnical, chemical, and food industries to perform clinical, environmental, process analysis, and production quality assurance. The company also offers services for liquid, sample, and cell handling in laboratories worldwide.
PolyScience - Div. Of Preston Industries, Inc. established in 1963 and based in Niles, Illinois, USA, is a manufacturer and supplier of temperature control solutions. The company's product range includes circulating baths, application-specific products, general-purpose water baths, chillers & coolers, and low-temperature coolers. These products are primarily utilized in settings requiring precision temperature control such as analytical instruments and scientific laboratories. They serve industries including analytical instruments, scientific laboratories, culinary, and machinery manufacturing. The company also offers solutions in cooling equipment, heating equipment, chillers, and specialty temperature control equipment.
Thermo Fisher Scientific Inc., founded in 1956 and headquartered in Waltham, Massachusetts, is a manufacturer and supplier of life science solutions, analytical instruments, specialty diagnostics, laboratory products, and biopharma services. Through its brand names, including Invitrogen, Fisher Scientific, Patheon, Applied Biosystems, and Gibco, among others, the company provides a wide range of products, which include chromatography systems, thermal cyclers, automated cell counters, fermenters, and DNA polymerases. The company’s annual revenue is over 40 billion USD, and it serves several fields, including customers working in clinical diagnostic labs, research institutions, hospitals, government agencies, and pharmaceutical/biotech companies.
Thermotron, founded in Holland, Michigan, in 1962 is a supplier of environmental test equipment. The company's product portfolio includes environmental test chambers, vibration test systems, combined environment test facilities, environmental stress screening systems, and functional test & measurement systems. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. They provide services including system start-up and on-site training, equipment repair, instrumentation system upgrades, preventive maintenance, and warranty.
JISICO CO., LTD., established in 1967 in Seoul, Korea, is a manufacturer of chemical and physical apparatus instruments for research agencies, hospitals, universities, and industrial research institutes. Its product catalog includes constant temperature and humidity chambers, water purification tools, analytical and measuring apps, and electric mule furnaces. It also offers accessories such as vacuum pumps, glove boxes, heating apparatus, and water baths. The company obtained the BS EN ISO 9001:2000/KS A 9001:2001 and ISO 14001:2004/ KS Q 14001:2004 certifications.
SMC corporation was founded in 1959 and is headquartered in Tokyo, Japan. SMC Corporation manufactures and sells automatic control equipment and filtration equipment. SMC has production facilities in 30 countries, technical development centers in Japan, the United States, Europe, and China, and sales offices, globally. SMC product lines divided by them include filter replacements, condensation prevention, heat resistance, thermos-chilling, and others. SMC provides a video library as well as product selection guide to assist customers in finding solutions and optimizing product efficiency.
ORION Machinery Co., LTD was founded in Nagano, Japan in 1946. ORION’s product line features precision air processors, vacuum pumps, chillers, dehumidifiers, air dryers, temperature test chambers, infrared and space heaters, temperature regulators, and automated milking equipment for dairy farming.
ESPEC CORP., founded in 1947 and based in Osaka, Japan, is a manufacturer of environmental test chambers, listed as one of the Ministry of Economy, Trade and Industry (METI)'s Global Niche Top Companies Selection 100 in 2020. These chambers are designed to test the impact of temperature and humidity, rapid-rate thermal cycling, and thermal shock on materials and products. Additionally, the company offers Highly Accelerated Life Testing (HALT) and Highly Accelerated Stress Screening (HASS) systems to detect potential product weak links throughout their lifespans. These products find applications in various industries, including automotive, indoor farming, and digital communication technology.
AMETEK Brookfield, founded in 1934 and located in Middleboro, Massachusetts, is a manufacturer of laboratory and process automation and industrial equipment, texture analyzers, and powder flow testers. The company’s diverse range of products includes viscometers, rheometers, texture analyzers, power flow testers, and temperature control. These instruments are used for tasks like measuring viscosity, assessing texture, analyzing powder flow properties, and maintaining precise temperatures. The company’s products are used for quality control, product development, and process optimization across diverse sectors, including food, pharmaceuticals, and chemicals.
Lauda, founded in 1956 and based in Lauda-Königshofen, Germany, is a manufacturer of constant temperature equipment and systems used in production, research, and quality control. Its products include circulation chillers, thermostats, and water baths, and it also sells heat transfer liquids with temperatures ranging from -95 °C to over 300°C. The company has a digital service that allows users to monitor and evaluate devices remotely, and it also has a smartphone app that can control its integral process thermostats. It can make custom-tailored temperature control systems and has 12 foreign subsidies and a €120 million annual turnover.
Cannon Instrument Company Inc. founded in 1938 by Dr. Michael R. Cannon, is a manufacturer, offering a diverse range of quality viscosity-related solutions including glass viscometers, viscosity standards, automated viscometers, and constant temperature baths. The company has gained global reach for its viscosity-related products and services. With a legacy spanning over eight decades, Cannon Instrument Company is a big name in the field of viscosity measurement. Since its inception, the company has uplifted to its status as a provider of essential products for various industries requiring precise viscosity analysis.
Nippon Medical and Chemical Instruments Co., LTD., a company founded in 1957 and headquartered in Osaka, Japan, is a manufacturer specializing in environmental control, medical devices, and scientific instruments. The company offers a range of products, including a plant growth chamber, an infection control exhaust unit, and a multi-chamber animal housing system. It also offers infection-control exhaust units, surgical lights, and operating tables. Its products have sphericity and purity. The company has achieved ISO 9001 certification in 2002. It serves several industries, including Commercial equipment, Life sciences apparatus and equipment, and Medical equipment.
Witeg Labortechnik GmbH, founded in Germany in 1960, is a manufacturer and supplier of laboratory equipment and consumables. Its wide product range includes glass measuring devices, electric laboratory devices, liquid handling, heating baths, and laboratory consumables, while also providing a repair service as well as quality management services. It is officially certified according to DIN EN ISO 9001 and participates in a number of exhibitions, including Analytica 2024 and ACHEMA 2024.
VELP Scientifica Srl, established in 1983 and based in Usmate Velate, Italy, is an ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certified manufacturer and supplier of analytical instruments and laboratory equipment. The company's product range includes elemental analyzers, digestion units, distillation units, solvent extractors, and magnetic stirrers. These products are used for nitrogen/protein determination, carbon determination, solvent extraction, fiber determination, and oxidation stability studies. It primarily serves industries such as food and beverage, feed, agriculture, environment, and pharmaceutical, and life science. The company's services include installation, preventive maintenance, analytical support, and technical support.
Labomiz Scientific Ltd., Founded in the year 2007, is a manufacturer and global supplier of laboratory and scientific equipment. The company serves educational institutions and research laboratories worldwide. Labomiz's comprehensive range of laboratory equipment is designed to meet the needs of various industries and research fields. The company has established itself as a source for classy laboratory instruments, supported by a team of skilled professionals in marketing, sales, application, and support. Labomiz Scientific Ltd. continues to scientific advancements through its advanced and laboratory equipment offerings.
OHM ELECTRIC CO., LTD, founded in 1961 and headquartered in Hamamatsu, Japan, is a manufacturer specializing in wiring accessories, as well as temperature and environmental control devices. OHM offers various wiring accessories including cable glands, insulation caps, and junction boxes. To meet the requirements for maintaining a clean work environment, especially in manufacturing sites, the company provides a range of coolers, dehumidifiers, and condensate evaporators for indoor temperature and humidity control, as well as oil mist and dust collectors. Moreover, OHM offers system integrations with regard to electrical engineering solutions and automated machinery for various industries, including medical, food, and robotics.
Sibata Scientific Technology Ltd, founded in 1921 at Saitama, Japan is a manufacturer of environmental measurement and occupational health measurement equipment. The company with global clientele produces various scientific measurement and analysis equipment that can range from lab glassware to synthetic reactors. The products line comprise of general lab equipment, extractor, synthetic reactor, Rotary Evaporator and Glass tube oven. These products are used in applications such as occupational safety, food hygiene, water hygiene, hospital and chemical plants as well. The products are ideal for testing quality, measuring dust, precise heating & cooling, personal exposure measurements and many more with more reliability.
U-THERM International HK Limited, established in 2008 and headquartered in Tsim Sha Tsui, Kowloong, Hong Kong, is a supplier of laboratory analysis, testing, and measuring instruments and equipment. Its extensive product range includes analytical balances for precise laboratory weighing, spectrophotometers for quantitative analysis across scientific fields, DRS spectrometers, as well as ICP (Inductively Coupled Plasma) instruments for detecting metals and nonmetals in liquid samples, and lab or medical refrigerators for storage purposes.
Ranking as of June 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Thermotron |
10.1%
|
| 2 | ORION MACHINERY Co., LTD. |
8.7%
|
| 3 | Altmann Analytik GmbH & Co. KG |
5.8%
|
| 4 | JISICO CO., LTD. |
5.8%
|
| 5 | NIPPON MEDICAL & CHEMICAL INSTRUMENTS CO., LTD. |
5.8%
|
| 6 | Eppendorf North America |
5.8%
|
| 7 | OHM ELECTRIC CO., LTD |
5.8%
|
| 8 | SMC Corporation. |
5.8%
|
| 9 | Labwit Scientific Group Pty Ltd |
4.3%
|
| 10 | Cannon Instrument Company Inc. |
4.3%
|
Derivation Method
The ranking is calculated based on the click share within the constant temperature bath page as of June 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
7 | 36.8% |
|
Japan
|
7 | 36.8% |
|
Republic of Korea
|
1 | 5.3% |
|
Germany
|
1 | 5.3% |
|
Italy
|
1 | 5.3% |
|
Canada
|
1 | 5.3% |
|
China
|
1 | 5.3% |
380 products found - Page 3
380 products - Page 3
Yagyu Shokai Co., Ltd.
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