東和電気 Product Lineup

We would like to introduce the "Lotus Fin" handled by Towa Electric Co., Ltd. Lotus metal is a porous copper material created using a special casting method. The countless pores that penetrate from top to bottom dramatically increase the surface area and achieve excellent heat dissipation. Using this Lotus metal, we conducted comparative experiments on the cooling performance against commercially available high-spec PC CPU coolers. Despite a 76% reduction in volume ratio, it demonstrated 1.1 times the cooling performance. This translates to approximately four times the cooling performance at the same volume ratio. 【Features】 - Achieves thermal conductivity equivalent to silver sintering through unpressurized, low-temperature bonding. - With high heat dissipation performance, it enables miniaturization, high performance, and energy savings. - The pores are aligned in one direction, resulting in excellent thermal conductivity and fluid permeability. *For more details, please download the PDF or feel free to contact us.

"Galden" is a fluorinated insulating fluid suitable for immersion cooling systems. It has excellent electrical insulation properties and high chemical stability, making it widely useful for cooling semiconductor manufacturing equipment and electronic products, as well as for cleaning pumps and equipment due to its ease of handling. Additionally, it shows high compatibility with all metals, various rubbers, commercially available elastomers, and plastics. 【Features】 ■ Wide boiling point range from 55 to 270°C ■ Maintains high heat resistance ■ Decomposition temperature above 290°C ■ Particularly high boiling point grades have low evaporation loss ■ Ozone depletion potential is zero (zero ODP) *For more details, please download the PDF or feel free to contact us.

We would like to introduce the "POC System" handled by Towa Electric Co., Ltd. This product is a two-phase liquid immersion cooling device that immerses the entire motherboard, which has high heat-generating components such as CPUs and GPUs, in a refrigerant. It can be used as an experimental device for immersing various materials around the substrate, such as electronic components, conductive parts, and insulating materials, in boiling refrigerant for an extended period. 【Features】 ■ Easy to conduct evaluation tests in a two-phase liquid immersion cooling environment ■ Desktop size *For more details, please refer to the related links or feel free to contact us.

The "Sora Sola Mini" is a desktop immersion cooling system designed to cool high-load devices that heavily utilize GPUs, such as supercomputers, mining, AI, and e-sports deep learning. It features a round transparent acrylic tank with excellent aesthetics that allows you to see the boiling process, making it suitable for gaming use. Additionally, the special refrigerant enables boiling latent heat cooling compared to oil immersion, and it offers good maintenance for the boards. 【Features】 ■ Designed to accommodate one built-in ATX board ■ Built-in GPU board ■ Equipped with dry-run prevention function ■ Compact high-performance bellows included ■ The dedicated radiator can cool one desktop immersion unit per unit ■ One MHI dry cooler can cool five desktop immersion units *For more details, please refer to the related links or feel free to contact us.

The "liquid immersion cooling system" is a system that immerses ICT equipment such as servers in a special insulating liquid to directly cool the servers. Because the refrigerant comes into direct contact with the equipment for cooling, it is gaining attention as a highly energy-efficient cooling method compared to traditional air cooling. Additionally, the refrigerants used in liquid immersion cooling include fluorinated inert liquids and silicone oils. 【Features】 ■ Better cooling efficiency compared to traditional air and water cooling ■ Space-saving ■ Reduces noise during cooling *For more details, please refer to the related links or feel free to contact us.

With the advancement of AI servers, there is increasing attention on "liquid immersion cooling," which offers higher cooling efficiency compared to traditional air and water cooling. Our "Two-Phase Liquid Immersion Cooling Evaluation POC Device" is a system that allows for experiments in liquid immersion cooling on a tabletop. Electronic component manufacturers and module manufacturers can easily verify whether their components are compatible with liquid immersion cooling. It can also be utilized for the development of liquid immersion cooling units by the customers themselves. 【Features】 ■ A safe and stable cooling mechanism designed by thermal engineering professionals ■ Customizable to match the components and materials being submerged ■ Compact yet efficient in conducting component evaluations for liquid immersion cooling By utilizing this device, you can quickly confirm compatibility with liquid immersion cooling, aiding in product differentiation in the server market, which is expected to grow in the future. <check!> From October 14 to 17, at CEATEC 2025 held at Makuhari Messe, we will be conducting a live demonstration of the two-phase liquid immersion cooling POC device at the booth of our partner company in Hall 5 [5H391]. Please come and see it. For more details, please check the technical materials by downloading the catalog below or feel free to contact us.

In "single-phase liquid immersion cooling," where AI servers and GPU boards are immersed in hydrocarbon-based refrigerants, maintenance can be time-consuming because the cooling oil clings to the entire board, making it difficult to remove the oil completely. It is said that completely removing the oil through dripping is challenging, presenting issues for maintenance. The "cleaning device" we propose completely removes the cooling oil adhered to AI servers. This achieves a reduction in maintenance time and labor hours. We will make proposals tailored to your needs, so please contact us for more details.