Immersion CoolingCOMPANIES / SOURCED DIRECTORY

Mitsubishi Heavy Industries

MHI engineers immersion cooling systems and container data centers, including a 12-ft container with hybrid immersion and air cooling for edge sites. It built the system with KDDI and NEC Networks & System Integration.

Tank systems

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Facts

Source per value
Supply role The procurement layer supplied: tank systems, servers and integration, or dielectric fluids.
Tank systems 1
Cooling phase Documented immersion phase for the named offer. Both means the company sells single- and two-phase systems.
Not published
Named offer The named immersion product, system or fluid grade.
12-ft container data center with hybrid immersion and air cooling 1
Example system kW One published tank or system rating in kW for the named model. The rating basis gives its model, size and water conditions. Server TDP and CDU ratings stay out of this column.
Not published
Rating / selection basis The model and conditions behind the kW figure, or the key fluid properties for fluid suppliers.
40 kVA-class container: 25 kVA immersion-cooled, 8 kVA air-cooled and 8 kVA water-cooled capacity. 1
Fluid Named dielectric fluid, fluid family or approved fluid list.
Not published
Hardware evidence Named server, GPU layout, form factor or validation platform.
Not published
Deployment / documentation A named deployment, joint validation or technical document.
KDDI Oyama Network Center demo with KDDI and NESIC (Feb 2023): 100 kVA-class servers, 94% cut in server cooling energy, PUE 1.05; 2021 container test with 50 kVA-class servers reached PUE 1.07 2

Sources

  1. MHI introduces container-type data center with immersion/air-cooled hybrid cooling (Oct 2023) accessed 2026-11-11
  2. KDDI, MHI and NESIC immersion cooling demonstration results (6 Mar 2023) accessed 2026-11-11
  3. MHI data center case studies accessed 2026-11-11
Build a comparison
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    TMGcore's immersion technology now sits with Modine, which bought its IP and assets in January 2024, and is sold under the Airedale brand. The current offer is the EdgeBox 10, a compact immersion unit for high-density edge compute.

  • Vertiv

    Vertiv sells the CoolCenter Immersion system, which pairs immersion tanks with a CDU. It is built for operators running high-density AI and HPC servers, from a 24U self-contained unit up to four-tank, 240 kW deployments.

  • Fujitsu

    Launched the PRIMERGY Liquid Immersion Cooling System in 2018: immersion baths sold with PRIMERGY servers, holding up to 48 servers per bath.

  • Immersion4

    Immersion4 sells DTM (Dynamic Thermal Management), a modular immersion data center technology that scales from edge sites to full-size facilities. It targets operators that want water-free cooling and local, in-country data centers.

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