V
Vertiv
Liebert XDU — sovereign cloud + colocation deployments in Sydney, Melbourne. ASHRAE W32 / W40 alignment.
Data Centre Liquid Cooling · Phase 1 Primary
Data Centre Liquid Cooling for Australia
Direct-to-chip liquid cooling cold plate kits for Australian colocation, sovereign cloud, and HPC refresh deployments. CDU-vendor compatible with Vertiv, CoolIT, Stulz, and Motivair. Rack power density 80–120 kW+ supported — the step-change from air-cooled 8–25 kW that enables high-density GPU clusters and AI training infrastructure. Cold plates designed, engineered & manufactured in Huizhou; AS/NZS & ChAFTA documentation from Carlton VIC.
80–120 kWrack power density supported
25–45 kParack-level total ΔP envelope
W32 / W40ASHRAE TC 9.9 inlet temperature classes
2–4 weeksprototype lead time door-to-door
Process & standards glossary (AU engineering reader):
TLP = Transient Liquid Phase diffusion bonding ·
FSW = Friction Stir Welding ·
CAB = Controlled Atmosphere Brazing ·
PPAP = Production Part Approval Process ·
IATF 16949:2016 (international automotive QMS) ·
ISO 9001:2015 (quality management) ·
AS/NZS 60068-2-14 ≡ IEC 60068-2-14:2009 (thermal cycling endurance) ·
IEC 62619:2017 (industrial battery safety) ·
AS/NZS 5139:2019 (BESS installation) ·
AS/NZS 4777.2:2020 (grid-connected inverter).
Page reviewed by
ToneCooling Australia Customer Engineering Support Team
·
Carlton, VIC
·
Last reviewed: 28 April 2026
·
About the team →
Solution Snapshot · 4 KPI
Programme types
3
Colocation · Sovereign cloud · HPC
Rack density
80–120 kW
vs ~25 kW air-cooled
CDU vendors
4+
Vertiv · CoolIT · Stulz · Motivair
Manifold spec
OCP DC-MHS
+ AS/NZS scope
Engineering Reference & Standards
What standards and platform references apply to Australian data centre liquid cooling?
ToneCooling Australia supplies liquid cooling cold plate kits for Australian colocation, sovereign cloud, and HPC refresh programmes. Kits are engineered for the NVIDIA GB200 NVL72 platform, aligned to the Open Compute Project DC-MHS manifold specification, ASHRAE TC 9.9 Datacom liquid-cooling envelope, and Standards Australia AS/NZS scope. CDU-vendor compatible (Vertiv, CoolIT, Stulz, Motivair).
Which Australian data centre programme contexts does ToneCooling support?
Three Australian data centre programme contexts shape liquid cooling cold plate procurement: colocation operator builds, sovereign cloud / government IT, and HPC refresh cycles. Each has a different rack-density target, CDU vendor mix, and AS/NZS compliance scope.
Programme · Colocation
NextDC · AirTrunk · Equinix-tier supply chains
AU colocation operators deploying liquid-cooled GB200 NVL72 racks for AI tenants. Pre-assembled cold plate + manifold + Stäubli RBE03 quick-disconnect kits, helium-leak verified.
Programme · Sovereign cloud
AU Government / defence IT platforms
Australian sovereign cloud builds for defence, intelligence, and critical-infrastructure workloads. Carlton-coordinated engineering response in AEST/AEDT business hours.
Programme · HPC refresh
Pawsey · NCI Gadi refresh cycles
Australian HPC supercomputing refresh windows. Direct-to-chip cooling 80–120 kW per rack, AS/NZS 60068-2-14 thermal cycling validated, lot-traceable per shipment.
Section 1 of 3
What rack power density does data centre liquid cooling support?
Direct-to-chip liquid cooling supports 80–120 kW+ per rack — compared to 8–25 kW for air cooling. This rack-density step-change is what enables high-density GPU clusters and AI training infrastructure in AU sovereign cloud and HPC deployments. Total rack-level ΔP envelope is 25–45 kPa across cold plate + manifold + interconnects + CDU heat exchanger.
| Cooling architecture | Rack density | Practical limit | Suitable for |
|---|---|---|---|
| Air-cooled (hot/cold aisle) | 8–15 kW | Hot-aisle / cold-aisle airflow constraint | Legacy compute / general-purpose servers |
| Air-cooled (rear-door heat exchanger) | 15–25 kW | Rear-door coil flow rate, supplemental water | Mid-density compute |
| Direct-to-chip liquid (entry) | 25–60 kW | Cold plate ΔP budget, CDU pump curve | Mixed GPU / CPU clusters, HPC entry |
| Direct-to-chip liquid (high-density) | 80–120 kW+ | CDU heat-rejection capacity to facility loop | NVIDIA GB200 NVL72, AI training clusters |
| Immersion (single-phase / two-phase) | 100–200 kW+ | Coolant compatibility / capex | Specialty HPC / research compute |
Section 2 of 3
Which CDU vendors are compatible?
ToneCooling cold plates integrate with major rack-level CDUs deployed in Australian data centres. The cold plate's hydraulic envelope is tuned during DFM iteration to align with your CDU's pump curve, thermal capacity, and operating window. ToneCooling supplies cold plates and manifolds; the CDU is supplied separately by your facility integrator.
C
CoolIT
CHx series — Pawsey, NCI HPC refresh and sovereign-cloud private regions.
S
Stulz
/ 200 — mid-tier AU integrators and regional colocation operators.
M
Motivair
— HPC and AI training cluster builds. ASHRAE W40 deployment.
Section 3 of 3
Which Australian data centre customers does ToneCooling serve?
AU customer segments include sovereign cloud (Microsoft Azure AU East/Southeast, AWS Sydney, Oracle/SAP regions), HPC refresh (Pawsey Supercomputing Research Centre, NCI Gadi), AARNet research network, mid-tier colocation operators, and government integrators .
☁️
Sovereign cloud
Microsoft Azure AU East / AU Southeast, AWS Sydney, Oracle / SAP private regions deployed across Sydney, Melbourne, Perth.
🔬
HPC refresh
Pawsey Supercomputing Research Centre (Perth), NCI Gadi (Canberra), AARNet research-network sites.
🏢
Mid-tier colocation
NEXTDC, Equinix AU, Macquarie Telecom, AirTrunk — high-density rack programmes for AI tenants.
📡
Edge AI & telecom
Optus, Telstra, TPG edge AI deployments + 5G fronthaul thermal hardware.
🏛️
Government integrators
Civilian and commercial government integrator builds within engagement scope.
🔧
System integrators
Server OEMs and rack-builder integrators serving the AU data centre channel.
FAQ
What rack power density does data centre liquid cooling support?
80–120 kW+ per rack vs 8–25 kW for air cooling. Total rack-level ΔP envelope 25–45 kPa across cold plate + manifold + interconnects + CDU heat exchanger.
Which CDU vendors are compatible?
Vertiv (Liebert XDU), CoolIT (CHx series), Stulz CMU, Motivair. Cold plate hydraulic envelope tuned during DFM iteration to align with your CDU pump curve and chemistry.
Which Australian data centre customers does ToneCooling serve?
Sovereign cloud (Azure / AWS / Oracle), HPC refresh (Pawsey, NCI), AARNet, mid-tier colocation (NEXTDC, Equinix AU, Macquarie, AirTrunk), edge AI & telecom, civilian government integrators.
Continue Exploring
Related ToneCooling Australia pages
COMPARISON
Liquid vs Air Cooling (DC)
When AI data centres need direct-to-chip liquid cooling over air.
SOLUTIONAI Server Liquid Cooling
Direct-to-chip cold plate kits for NVIDIA GB200, GB300, H200, AMD SP5, Intel Birch Stream — primary AU AI server platforms.
View solution → PRODUCTNVIDIA GPU Cold Plate Kits
GB200 / GB300 / H200 kits for Australian sovereign cloud and HPC refresh deployments.
View product → CAPABILITYAS/NZS Compliance Support
Documentation handoff for AS/NZS 5139, 4777, 60068-2-14, 60529 + ChAFTA per shipment.
View capability → RESOURCEAI Server Cooling Design Guide
12-section engineering reference for direct-to-chip AI server cold plate design.
Read the guide →Send your data centre cold plate brief
TDP map per platform, target ΔP and flow rate, CDU model, qualification scope. Carlton-coordinated 24-hour response with technical review by Huizhou.
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