Case 01
AI computing center
130 kW IT load, 2 PFLOPS, two-phase immersion. Design PUE 1.1 and 30% lower energy use, meeting Class-A standards.
RUNHE
Hong Kong · Liquid Cooling
Liquid cooling, from fluid to facility.
Dielectric coolants, immersion cabinets and coolant distribution units for AI data centers — engineered by Runhe Materials, a silicone chemistry company since 2000.
Runhe Materials · SZSE 300727
Two decades of silicone chemistry, applied to heat.
Runhe develops and manufactures its own coolant molecules — single-phase, two-phase and cold-plate fluids — on an 85-acre base in the Moganshan Economic Development Zone. That chemistry now ships inside complete liquid cooling systems.
Since 2000
SZSE: 300727
85-acre production base
16 application areas
PUE from 1.02
88 W/cm² GPU density
Five coolant families
Hong Kong · Zhejiang
Why liquid cooling
Air has run out of headroom.
Compute density keeps climbing. Policy keeps tightening. Liquid cooling is the engineering answer to both.
Immersion and cold plate, deployed at rack scale
PUE target · 2017
< 1.5
State Council: new large cloud data centers must beat 1.5.
PUE target · 2019
< 1.4
MIIT green data center guidance for large and super-large facilities.
PUE target · 2022
< 1.3
Three-Year Action Plan for new data centers.
0%
Year-on-year growth of the Chinese liquid-cooled data center market
Our strengths
Four things we do in-house.
Molecule, flow field, control algorithm and cabinet — designed by the same team, so they work as one system.
Runhe designs its own molecular structures. Our immersion coolant reaches a kinematic viscosity at −30 °C of roughly one quarter that of competing fluids, which keeps pumps small and cold starts safe. Every fluid is compatibility-tested against seals, PCBs, cables, connectors and GPUs before release.
A dedicated CFD team simulates the whole machine, then shapes inlet and outlet geometry around the result. The outcome is even flow across every server node and a uniform temperature field inside the tank — balanced heat rejection instead of local hot spots.
Multi-dimensional sensing collects equipment power, coolant temperature, ambient temperature and humidity, and flow rate. A thermal model with an adaptive control algorithm then damps the temperature oscillation caused by coolant inertia, and three control modes eliminate local hot spots in real time.
An 85-acre production base in the Moganshan Economic Development Zone covers silicone oils, coolants and system assembly. Custom motors for immersion use high-speed NdFeB magnets, tuned across physical property parameters from 1 to 10 to raise liquid delivery efficiency.
Product platforms
All products
Two families. One fluid strategy.
Immersion systems
Tanks and cabinets that run on our own dielectric.
Two-phase boiling and single-phase circulation, from an 8U office-grade cabinet to a 20-slot tank.
Immersion platforms
Coolant distribution
CDUs sized for one rack or a whole row.
16 kW in-rack air-to-liquid, 150 kW in-rack liquid-to-liquid, 500 kW in-row. Dual pumps, variable frequency, IP55.
CDU platforms
Systems
See the full range
Five platforms, shipping today.
Two-phase immersion
RH-ALIM-8
Two-phase immersion cabinet
Phase-change boiling in an 8U all-in-one cabinet. PUE 1.02–1.05 without facility piping.
5 kWHeat8UCapacity
Liquid-to-air
RH-ALIM-8-pro
Liquid-to-air compute cabinet
Immersion inside, coil and air outside. Deploys in an ordinary office at 52 dB(A).
3 kWHeat8UCapacity
In-rack CDU
RH-AL-CDU-16
In-rack CDU, 16 kW
Air-to-liquid for single-rack GPUs and small workstations. Dual pumps, 19-inch mounting.
16 kWHeat1+1Pumps
In-rack CDU
RH-RM-CDU-150
In-rack CDU, 150 kW
6U liquid-to-liquid with a high-efficiency plate exchanger. 220 LPM secondary flow.
150 kWHeat6UForm factor
In-row CDU
RH-CCDU-500
In-row CDU, 500 kW
A floor-standing plant for AI halls. Modular cabinet, DN65 primary, parallel expansion.
500 kWHeat7.5 kWPower
Fluids
PCM · PCT · PCL · PCF
Dielectric coolants
Nine grades across single-phase, two-phase and cold-plate duty — made by the company that makes the system.
9Grades−30 °CLow-temp flow
Deployed
Where the systems run.
From a 130 kW AI hall to edge nodes standing in an office corridor.
Case 02
Edge computing nodes
Air-to-liquid all-in-one units and mini CDUs installed across sites with no machine-room build-out. 52 dB(A) at the cabinet.
Case 03
Enterprise retrofit
Cold plate loops added to legacy racks with minimal server changes, cutting PUE without replacing the estate.
Tell us the load. We will size the loop.
Send rack power, fluid temperatures and floor constraints. Our engineers will come back with a platform recommendation and a coolant grade.
Hong Kong office · Mongkok, Kowloon