Commercial invoice (AUD)
Itemised invoice in Australian Dollars showing line pricing, GST line (10% if applicable), freight, and incoterms. Compliant with ATO record-keeping requirements.
GPU Cold Plate · Phase 1 Primary Product
ToneCooling Australia supplies direct-to-chip cold plate kits for three NVIDIA GPU platforms most deployed in Australian sovereign cloud, HPC refresh, and edge AI: GB200 Grace Blackwell (2,700 W per Bianca module), GB300 Grace Blackwell Ultra (engineering preview, manifold-ready), and H200 (8-GPU baseboard, 8 × 700 W). Cold plate design, engineering, and manufacturing are performed at our IATF 16949-aligned partner facility in Huizhou, Guangdong, China. AS/NZS compliance documentation, customs coordination, and customer engineering support delivered by our Carlton, Victoria team.
Product Snapshot · 4 KPI
Engineering Reference & Standards
Section 1 of 6
Direct-to-chip cold plate for the 2 × Blackwell GPU + 1 × Grace CPU configuration. Vacuum-brazed copper or TLP diffusion-bonded copper construction. Compatible with NVL72 rack-scale liquid cooling deployments.
2,700 W total NVL72 ready TLP available| Thermal envelope (per Bianca module) | 2,700 W (1,200 W + 1,200 W + 300 W) |
|---|---|
| Cold plate material | Copper C1100 (default) · Copper C1020 on request · Aluminium 6061 / 6063 cost-optimised variant |
| Joining process | TLP diffusion bonding (preferred, 99 % yield) · vacuum brazing (legacy hyperscaler grade) |
| Channel topology | Micro-channel fin, 0.4–0.8 mm width, 1.5–3.0 mm depth |
| Reference flow rate | 10–12 L/min |
| Reference ΔP | 25–35 kPa at reference flow |
| Coolant compatibility | 50/50 EGW · 25 % propylene glycol (PG25) · ASHRAE W40 design |
| Inlet temperature window | 20–40 °C (ASHRAE W40-aligned) |
| Maximum working pressure | 0.35 MPa |
| Burst pressure | ≥ 4 MPa (lot-sample tested) |
| Quick-disconnect coupling | Stäubli RBE03 (default) · Colder Products Company NS6 (project-specific) |
| Manifold compatibility | OCP DC-MHS r1.0 / r1.1 manifold pitch · custom manifold orientation on RFQ |
| Helium leak rate | ≤ 1×10⁻⁹ mbar·L/s (every production unit, 100 %) |
| Bond verification | Ultrasonic C-scan, every production unit, 100 % |
| Operating temperature range | −40 °C to 150 °C, 20–98 % RH |
| NVL72 rack support | Yes — manifold-ready architecture for rack-scale GB200 deployment |
Section 2 of 6
Next-generation cold plate kit for the Grace Blackwell Ultra platform refresh. Engineering preview samples available under NDA for AU customers planning Q3 2026 deployments. Manifold-ready architecture inherited from GB200 NVL72.
Engineering preview NDA required Q3 2026| Status | Engineering preview · NDA required for sample release |
|---|---|
| Reference TDP envelope | Higher than GB200 (specific values disclosed under NDA) |
| Cold plate material | Copper C1100 (preview), TLP diffusion-bonded |
| Reference flow rate | 10–12 L/min (preview) |
| Reference ΔP | 28–38 kPa (preview, subject to platform finalisation) |
| Coolant compatibility | 50/50 EGW · ASHRAE W40 design |
| Manifold compatibility | GB200 NVL72-aligned manifold architecture |
| Helium leak rate target | ≤ 1×10⁻⁹ mbar·L/s (target, validated on engineering preview samples) |
| Australian availability | Engineering preview Q1–Q2 2026 · production cold plates aligned to NVIDIA platform GA |
Section 3 of 6
Cold plate kit for the H200 8-GPU SXM baseboard, including the 8 × GPU sockets, 2 × NVSwitch fabric chips, and 2 × host CPU sockets in a unified manifold architecture.
7,148 W total 8 + 2 + 2 thermal sources 18.5 kPa @ 8.0 L/min| Thermal coverage | 8 × 700 W GPU + 2 × 134 W NVSwitch + 2 × 156 W host CPU = 7,148 W total baseboard envelope |
|---|---|
| Cold plate material | Copper C1100 (default) · TLP-bonded variant available |
| Joining process | Vacuum brazing (default) · TLP diffusion bonding (premium) |
| Reference flow rate | 8.0 L/min (per baseboard) |
| Reference ΔP | 18.5 kPa at 8.0 L/min, 32 °C inlet, 50/50 EGW |
| Coolant compatibility | 50/50 EGW · 25 % propylene glycol (PG25) · ASHRAE W32 design |
| Inlet temperature window | 20–32 °C (ASHRAE W32-aligned) |
| Manifold architecture | Unified single-port baseboard plenum with internal flow distribution |
| Quick-disconnect coupling | Stäubli RBE03 · CPC NS6 · custom on RFQ |
| Helium leak rate | ≤ 1×10⁻⁹ mbar·L/s (every production unit, 100 %) |
| Bond verification | Ultrasonic C-scan, every production unit, 100 % |
| Operating temperature range | −40 °C to 150 °C, 20–98 % RH |
| HGX H200 baseboard compatibility | Yes — kits supplied for OEM-finished servers and rack-builder customers |
Section 4 of 6
| CDU vendor | Reference series | Typical AU deployment | Hydraulic alignment |
|---|---|---|---|
| Vertiv | Liebert XDU | Sydney, Melbourne sovereign cloud + colocation | 50/50 EGW · ASHRAE W32 / W40 · ΔP budget 25–45 kPa rack-level |
| CoolIT | CHx series | Pawsey, NCI HPC refresh · sovereign-cloud private regions | 50/50 EGW · ASHRAE W32 · ΔP budget 25–40 kPa rack-level |
| Stulz | / 200 | Mid-tier AU integrators · regional colocation | 50/50 EGW · ASHRAE W32 · ΔP budget 20–35 kPa rack-level |
| Motivair | Motivair | HPC and AI training cluster builds | 50/50 EGW · ASHRAE W40 · ΔP budget 25–40 kPa rack-level |
| Custom / OEM | RFQ-specific | Sovereign-compute and government integrator builds | DFM iteration to your specific CDU pump curve and chemistry |
Because the cold plate sits inside the rack-level cooling loop, its hydraulic profile must align with the CDU's pump curve at the design operating point. The DFM review session (scheduled within 1 working week of NDA execution) maps your specific CDU's pump curve onto the cold plate's CFD-modelled ΔP–flow characteristic, identifies the design operating point, and validates thermal performance under the CDU's actual coolant chemistry and inlet-temperature window.
Section 5 of 6
| Stage | Lead time | Owner | Deliverable |
|---|---|---|---|
| 1. RFQ acknowledgement | prompt | Carlton VIC customer engineering support team | Receipt confirmation; completeness check on TDP map / ΔP / flow rate / qualification scope |
| 2. Engineering response | prompt | Carlton-coordinated; technical review by Huizhou design and engineering team | Thermal sensitivity table, process recommendation (TLP / vacuum braze), draft quote in AUD |
| 3. NDA execution | within standard turnaround | Carlton VIC team | Mutual NDA signed; design-phase IP exchange enabled |
| 4. DFM review session | promptly | Carlton + Huizhou joint Zoom session | CFD output, channel-topology proposal, manifold-port alignment, hydraulic budget review |
| 5. Prototype delivery | Agreed at quotation | Huizhou manufacturing → AU customer site | Prototype cold plates with helium-leak certificate, ultrasonic C-scan report, ChAFTA Certificate of Origin |
| 6. Production run | Agreed at quotation | Huizhou manufacturing | Production lot with lot-traceable QC certificates |
Section 6 of 6
Itemised invoice in Australian Dollars showing line pricing, GST line (10% if applicable), freight, and incoterms. Compliant with ATO record-keeping requirements.
Per-pallet and per-carton breakdown: SKU, quantity, gross + net weight, volume (CBM), dimensions, country of origin (China), HS code declaration.
China-Australia Free Trade Agreement Certificate of Origin issued by an authorised China-side body, enabling 0–5% import duty on HS 8419 / 8537 cold plate categories.
Per-cold-plate helium leak detection certificate, recording leak rate (target ≤ 1×10⁻⁹ mbar·L/s), test temperature, test duration, and detector calibration date.
Per-cold-plate ultrasonic C-scan image of the bonded interface, showing void-free bonding (uniform colour) — required for AI server grade and PPAP qualification programmes.
RoHS 2.0 declaration (CNAS-accredited Wonder Labs, ILAC-MRA recognised, NATA-equivalent). PFAS-free SGS Shanghai certificate per EN 17681-1:2022 (steel substrates). Mill test certificates for copper and aluminium.
Frequently Asked
AI server GPU cold plate prototype lead times agreed at quotation door-to-door from Huizhou to Australian capital cities (Sydney, Melbourne, Brisbane, Perth, Adelaide). The cycle is: Carlton-coordinated response on receipt of a complete RFQ; NDA executed promptly; DFM review session scheduled promptly; tooled prototype manufacturing and shipping within the agreed lead-time envelope. Production scale agreed during quotation with Production lead times agreed at quotation.
All Australian quotes are issued in AUD and clearly state whether GST (10 %) is inclusive or exclusive of the line price. Standard practice for B2B engineering supply is GST-exclusive line pricing with GST applied at invoice. ToneCooling Australia Pty Ltd is GST-registered (ABN 96 653 174 040). For shipments under DDP terms, all import duty (typically 0–5 % under ChAFTA), GST, and customs clearance fees are itemised separately on the commercial invoice.
Yes — for any platform-specific design work (custom socket geometry, OEM branding, project-specific TDP map, custom manifold orientation), a mutual NDA is signed before design IP is exchanged. Standard NDA templates are available; client-specific NDA templates are accepted. NDA execution is coordinated by the Carlton, Victoria customer engineering support team within within standard turnaround. Standard catalogue products (GB200, GB300, H200 reference cold plates) do not require an NDA — they are available against a standard purchase order.
Reference customer disclosures are coordinated under mutual NDA. We can typically arrange a video call with one or two existing customers in similar deployment scopes (AI server / sovereign cloud / HPC) on request, subject to those customers' availability and confidentiality preferences. We can also share anonymised case studies (CFD output, validation reports, lot-traceable QC certificates) without NDA. The parent group has shipped 1,000,000+ cold plates annually across data centre, BESS, and power electronics sectors.
Tooled Prototype MOQ available on request across all GPU cold plate platforms (GB200, GB300, H200). Production scale agreed during quotation. There is no upper-bound MOQ — the parent group manufactures over 1,000,000 cold plates annually from a 30,000 m² facility, and individual programmes routinely scale to volume production capacity. Programme-specific PPAP qualification (Levels 1–5) is supported on request.
Commercial terms — currency, payment schedule, and incoterms — are agreed by separate written commercial agreement during the quotation process, in line with B2B engineering supply industry practice. All quotes are issued in AUD with line pricing typically GST-exclusive (10 % GST applied at invoice).
Standard AU shipment documentation pack includes: commercial invoice (in AUD with GST line), packing list, ChAFTA Certificate of Origin (issued by an authorised China-side body — required for 0–5 % import duty under the China-Australia Free Trade Agreement, HS codes 8419 / 8537), bill of lading or air waybill, helium leak certificate per cold plate (for hyperscaler grade), ultrasonic C-scan report, and material certificates (RoHS 2.0, PFAS-free SGS Shanghai for steel substrates). Additional documentation (PPAP, FAI per AS9102, salt-spray per ISO 9227) on request.
Yes. Following NDA execution, a DFM (Design for Manufacturability) review session is scheduled within 1 working week. The session is a Zoom meeting with joint Carlton + Huizhou attendance: the Carlton VIC customer engineering support team coordinates, and the Huizhou design and engineering team presents the CFD output, channel-topology proposal, manifold-port alignment, and hydraulic-budget review. The DFM session is included in the prototype quote at no separate fee. Outcomes of the session are captured in a signed DFM report before tooling commits.
Continue Exploring
Direct-to-chip cold plate kits for AU sovereign cloud, Pawsey/NCI HPC refresh, edge AI.
View solution → CAPABILITYCore manufacturing IP — 5-min cycle, 99% yield, 0.85 bond strength. C-scan verified.
View capability → CAPABILITY100% helium leak ≤ 1×10−&sup9; mbar·L/s and ultrasonic C-scan inspection per cold plate.
View capability → RESOURCE12-section engineering reference — GB200/GB300/H200 channel topology and ΔP budget.
Read the guide →A complete RFQ — TDP map per platform, target ΔP and flow rate, CDU model, qualification scope, lead time — receives a Carlton-coordinated response within 24 working hours, with technical review by the Huizhou design and engineering team. You receive a thermal sensitivity table, process recommendation (TLP / vacuum braze), and draft quote in AUD.
Request a Quote Email info@tonecooling.com.auView parent global GPU cold plate catalogue (tonecooling.com)
Dedicated NVIDIA GPU cold plate pages