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This section provides an overview for thermal shock equipment as well as their applications and principles. Also, please take a look at the list of 15 thermal shock equipment manufacturers and their company rankings. Here are the top-ranked thermal shock equipment companies as of December, 2024: 1.WEIBER, 2.CM Envirosystems, 3.Envisys Technologies.
Table of Contents
A thermal shock equipment is a device used to evaluate the effects of temperature changes on products and other items.
In thermal shock testing, the resistance of products, electronic components, materials, etc., to rapid temperature changes is assessed. The thermal shock equipment is equipped to expose specimens to alternating high and low-temperature environments, allowing for the execution of thermal shock tests through repetitive exposure cycles.
It is also referred to as a Heat Shock Test Apparatus or Thermal Shock Testing Machine.
Thermal shock equipment is employed to evaluate products that demand high reliability, such as electronic components, and products where anticipated temperature variations during use, like in automobiles, need assessment. Specific examples of products include:
Evaluations conducted through thermal shock testing include:
Thermal shock equipment creates low-temperature and high-temperature environments in the test area (test chamber) by using a medium (gas or liquid) tailored to the temperature conditions. Adjustments in the temperature of the medium, as well as its quantity, speed, and direction, are necessary to achieve the set temperature conditions.
By altering the temperature environment within the test area using the medium, the need for specimen movement is eliminated, reducing the impact on evaluation results from vibration and contact. Consequently, it enables the precise evaluation of reliability affected only by temperature conditions.
The range of settable temperatures generally spans from approximately -80°C to +300°C, allowing for the execution of tests under temperature conditions relevant to the intended purpose.
There are two types of mediums used in thermal shock equipment: gas and liquid. Some devices can evaluate both temperature changes and condensation simultaneously.
Additionally, different devices vary in tank dimensions, load-bearing capacity, minimum and maximum temperatures, temperature change rates, etc. The maximum temperature, in particular, varies significantly depending on the product, with specifications such as 150°C, 200°C, and 300°C. Tank capacity can reach 600L for larger devices. Choosing the appropriate device based on the desired temperature range, product size, evaluation time, etc., is crucial.
Air chamber-type thermal shock testing creates a temperature difference by exposing the specimen alternately to hot air and cold air. The structure typically includes adjacent cold and hot chambers next to the test chamber where the specimen is stored. Some air chamber-type products also involve moving the sample during the test.
Low-temperature and high-temperature air are alternately introduced into the test chamber, creating temperature changes. The mechanism of alternating air introduction results in a milder temperature change compared to liquid tank-type equipment. Additionally, tests can be conducted with the specimen powered.
Liquid tank-type thermal shock testing involves immersing the specimen alternately in hot and cold liquid. The testing machine's mechanism moves the specimen between hot and cold tanks, applying temperature changes to the product. Consideration is given to minimizing the impact of movement, with temperature changes occurring within 10 seconds.
Refrigerants, such as non-freezing and non-boiling liquids with electrical insulating properties (e.g., glycol), are used. Immerse the specimen in the pre-set liquid to cause more abrupt temperature changes than the air chamber-type. Compared to air chamber-type devices, it is possible to shorten the testing time. However, caution is needed regarding the possibility of faults that may not occur in actual usage conditions.
If the testing machine is equipped with a high-temperature humidifier, allowing humidity control within the device, it becomes possible to evaluate corrosion and potential malfunctions due to condensation, in addition to temperature changes. This type of test is particularly useful for testing items like automotive electrical equipment.
Various materials used in specimens subjected to thermal shock testing experience expansion and contraction due to temperature changes. Forces are applied at points where different materials meet, influenced by the difference in the coefficient of linear thermal expansion (CTE), which represents the relationship between temperature change and volume change. This force is stress.
As cycles of temperature differences between high and low temperatures are repeated, stress occurs, accumulates, and fatigues in various parts of the material. This can lead to phenomena such as cracking, peeling of coatings, loosening of screws, and ultimately, destruction. By testing this phenomenon, thermal shock testing evaluates how much resistance and strength the specimen has against temperature changes, providing an environment for reliability assessment.
Reliability assessment typically spans several months depending on the temperature cycle range and the number of repetitions. Especially during accelerated testing, if the thermal shock equipment stops during the test, it significantly affects the evaluation itself.
Therefore, it is crucial to consider backup power facilities, such as batteries, in advance. In the event of a power outage due to natural phenomena like lightning or earthquakes, the evaluation process will stop. To avoid the potential of a test that took months to stop midway and start over from scratch, it is advisable to use a stable backup power source.
*Including some distributors, etc.
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Cincinnati Sub-Zero (CSZ), founded in 1940 with headquarters in the USA, is a manufacturer of static environmental testing chambers. The company's products include benchtop, reach-in, walk-in, and drive-in test chambers and industrial freezers. Cincinnati Sub-Zero (CSZ) offers services that include test chamber maintenance programs, upgrades, refrigeration retrofits, calibration, training, replacement parts, and repair across the USA. Their test laboratory is A2LA accredited and provides environmental testing services including temperature, humidity, vibration and shock, thermal shock, HALT and HASS, altitude, drop testing, and corrosion testing.
Russells Technical Products, founded in 1972 with headquarters in India, is a manufacturer of environmental test chambers and systems. The company's product line includes pre-engineered temperature and humidity chambers, thermal shock chambers, dynamometer chambers, environmental rooms, and industrial cryogenic freezers. Russells Technical's test chambers are found in various industries, including defense, automotive, aviation, renewable energy, and biotechnology. Russells Technical Products also provides custom test chamber design, engineering, and production to meet client needs.
Axiom Test Equipment (ATE) is an American ISO 17025 certified distributor of electronic test and measurement equipment established in 2005 and based in Vista, California. The company offers various types of test equipment including oscilloscopes, spectrum analyzers, and signal generators, as well as equipment for measuring environmental factors like humidity. ATE also offers additional repair, calibration, and buyback services to its clients including Lockheed Martin, the Ford Motor Company, and Medtronic.
TENNEY/LUNAIRE, founded in the United States, is a supplier of environmental testing chambers and rooms. The company's product portfolio includes Temperature and Humidity Chambers, Thermal Shock Chambers, Salt Spray Chambers, Solar Radiation Chambers, and Altitude Chambers. It also provides Installation and Commissioning Services, Preventive Maintenance Programs, Repairs, and Calibration System Upgrades and Retrofitting. It serves markets such as Automotive and Transportation, Aerospace and Defense Electronics and Semiconductors, and Pharmaceuticals and Life Sciences.
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.
Haida International Equipment Co., Ltd., established in 2007 and headquartered in Guangdong, China, is a manufacturer that supplies a wide array of testing equipment. The company offers a wide range of products, including universal testing equipment, environmental test chambers, mattress testing machines, and more. It also offers rubber tensile testing machines, optical testing equipment, and furniture testing equipment. Its product is designed to deliver accurate results, ensuring the quality and durability of the tested materials. The company has received the MC, PA, and CE certifications. It serves a diverse range of industries, including hardware, metal, paper, automotive, textile, and more.
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.
Bell Experiment Equipment Co., Ltd., established in 2005, is a manufacturer of environmental and battery test chambers based in China. The company specializes in the production of environmental test chambers, including thermal shock chambers and walk-in environmental chambers. These products are designed to meet the testing needs of multiple industries, ensuring the reliability and durability of their products under different environmental conditions. With its ongoing research and development of test chamber, it continues to introduce products such as Li-ion battery safety, EV battery safety, environmental and mechanical test equipments to the international market in Europe, Asia, South America and Australia.
Guangdong Yuanyao Test Equipment Co., Ltd. was founded in 2009 and is based in Dongguan, Guangdong, China, as a manufacturer of temperature and humidity test chambers. The company's product list includes temperature humidity chambers, thermal shock chambers, industrial ovens, and IP test chambers. These products are utilized for comprehensive testing in industries including aerospace, electronics, materials, and component testing, effectively simulating various environmental conditions and vibrations to assess performance and reliability. The company caters to the electronics, automotive, aerospace, pharmaceutical, and communication sectors.
Associated Environmental Systems, founded in 1959 with headquarters in the USA, is a manufacturer of testing chambers, assemblies, and components. The company's product line includes benchtop temperature testing chambers, liquid-cooled ovens, laboratory ovens, and environmental walk-in test chambers. Associated Environmental Systems' products are used by laboratories and manufacturers that need to test or store materials or products in a constant environment. The company's steady-state chambers are configured to meet governmental regulations and test requirements in industries such as electronics, healthcare, food and beverage, packaging, life science, and more.
Wewon Environmental Chambers Co. Ltd is a Chinese-based manufacturer and supplier of electronic and cooling technologies, established in 1999 and located in the Sangyuan Industrial Park, Dongguan, Guangdong. Its product portfolio comprises environmental chambers, accelerating weather testers, tensile testing machines, rain test chambers, and laboratory ovens used by automotive, and mobile phone manufacturing. The company is accredited with ISO 9001: 2008 certification and its products have passed the CCC Safety Certification, the FCC, the European Union’s CE, and the RoHS certification. In addition to standard production, the company also offers OEM/ODM manufacturing services according to the customer's design and logo.
CM Envirosystems was established in 1981 and is headquartered in Bangalore, Karnataka, India, and, is a manufacturer and supplier of environmental Ttst chambers for various industries. The company's product folio includes climatic chambers, corrosion test chambers, thermal shock chambers, benchtop chambers, and, altitude chambers which are used to simulate real environmental conditions such as such as temperature, rain, dust, humidity, and, pressure. The company specializes in environmental simulation testing technology and its products are essential in the automobile, electronics, robotics, defense, and aerospace industries.
Envisys Technologies was founded in and is based in Bangalore, India, and is a manufacturer and supplier of environmental test chambers for various industrial applications. The company's product folio consists of environmental test chambers, dust chambers, thermal shock chambers, industrial ovens, and, temperature-forcing systems for the environmental testing needs of the automotive, electronics, defense, and, aerospace industries. The company has ISO 9001: 2015, ISO 45001: 2018, and, CE certifications and offers services including calibration, technical consultation & training, software updates, refrigeration upgrades, and, spare parts delivery for the clients.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | WEIBER |
26.2%
|
| 2 | CM Envirosystems |
7.1%
|
| 3 | Envisys Technologies |
7.1%
|
| 4 | ASSOCIATED ENVIRONMENTAL SYSTEMS |
7.1%
|
| 5 | Russells Technical Products. |
7.1%
|
| 6 | Cincinnati Sub-Zero (CSZ) |
7.1%
|
| 7 | Wewon Environmental Chambers Co., Ltd. |
4.8%
|
| 8 | TENNEY/LUNAIRE |
4.8%
|
| 9 | HAIDA INTERNATIONAL EQUIPMENT CO., LTD |
4.8%
|
| 10 | DGBELL |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the thermal shock equipment page as of December 2024. 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
|
5 | 50.0% |
|
China
|
4 | 40.0% |
|
Japan
|
1 | 10.0% |
52 products found
52 products
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