One of the most widely used refrigeration machines.
Cryogenic Refrigerators and Superconducting Application Technology Superconducting application technology, which is being discussed in various fields such as energy, computers, transportation, communication, and even everyday healthcare, is one of the extreme physical properties brought about by the world of cryogenic temperatures close to absolute zero (minus 273°C). In this state, electrical resistance becomes zero, leading to phenomena such as magnetic levitation (Meissner effect) and ultra-fast switching (Josephson effect), resulting in physical properties that are unimaginable in our normal temperature world, emerging from the interactions of ions and electrons at cryogenic temperatures. Superconductivity was first discovered in 1911 when a Dutch scientist cooled mercury to 4.2 K (Kelvin). Since then, over the course of about 100 years, refrigeration technology has evolved remarkably, and along with it, research and development related to superconductivity has made significant progress. Superconductivity is said to be a key technology of the 21st century. Even in terms of energy-related application technologies, its role is increasingly significant as a technology that maximizes the use of Earth's energy while protecting the beautiful environment of our planet. Leveraging years of experience in refrigeration technology, we sell unique helium-specific compressors and high-performance cryogenic refrigerators.
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basic information
GM refrigeration unit with no installation direction constraints A mechanical refrigeration unit where the heat storage material moves back and forth inside the cylinder, causing the refrigerant gas to expand adiabatically and generate cold. The method used by the GM refrigeration unit manufactured by Sumitomo Heavy Industries to achieve the back-and-forth motion of the heat storage material utilizes a crank mechanism to convert the motor's rotational motion into reciprocating motion. Additionally, innovations in the two-stage heat storage material seal have resulted in the world's first refrigeration unit without installation direction constraints for a 4K refrigeration unit. Pulse tube refrigeration unit with fewer maintenance requirements The pulse tube refrigeration unit consists of a simple system made up of a compressor, a heat storage unit, and a pulse tube. The main difference from the GM refrigeration unit is that the heat storage material does not move back and forth within the cylinder, resulting in lower vibrations during operation. Furthermore, since the heat storage material is fixed, there are fewer moving parts compared to the GM refrigeration unit, leading to reduced maintenance frequency. The pulse tube refrigeration unit manufactured by Sumitomo Heavy Industries features improvements that enhance the first-stage refrigeration capacity, effectively reducing the amount of heat entering from the outside and allowing for effective utilization of the second-stage refrigeration capacity.
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Applications/Examples of results
Applications of Refrigerators GM Refrigerator: Superconducting magnets for radio telescopes and MRI Pulse Tube Refrigerator: Magnets for NMR and precoolers for dilution refrigerators JT 4K Refrigerator: Superconducting magnets for accelerators and sensor cooling
Line up（16）
| Model number | overview |
|---|---|
| 4K GM Freezer RDK-408D2 | |
| 4K GM Freezer RDK-415D | |
| 4K GM-JT Freezer | |
| 4K Pulse Tube RP-082B | |
| 40K GM Freezer RDK-400B | |
| 77K GM Freezer CH-110 | |
| Compressor HC-4E1 | |
| Compressor CKW-21A | |
| Compressor HC-8E4 | |
| Compressor F-50 | |
| Compressor F-70 | |
| Compressor CNA-11 | |
| Compressor Zephyr | |
| Compressor CNA-31 | |
| Compressor CSA-71A | |
| Compressor CNA-61 |
Company information
Nagase Techno Engineering Co., Ltd. (abbreviated as NTE) was established in 1983 as a machinery service company of Nagase & Co., Ltd. and changed its name to the current one in 2009. It is the core company for equipment development and maintenance services within the Nagase Group and is expanding its business globally. Our company operates three main businesses: the sale and maintenance of low-temperature and vacuum-related equipment used in the semiconductor and medical fields, a Chemical Management System (CMS) for the recycling of chemicals used in the manufacturing of semiconductors and LCD panels, and a surface defect inspection device (SCANTEC) for inspecting optical and functional films and sheets. We aim to strengthen our global engineering services by leveraging the Nagase Group's network that spans overseas. Additionally, as a new challenge, we will utilize our high engineering capabilities in the agricultural sector to benefit customers outside of domestic manufacturing.
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