A Sunway CPU cooling plate is a custom-engineered direct-to-chip liquid cooling solution designed for Sunway (申威) domestic high-performance computing (HPC) processors — including the SW26010 and SW26010-Pro many-core processors used in China’s Sunway TaihuLight and newer exascale supercomputers. The liquid cooling plate mounts directly on the Sunway processor package, circulating coolant through precision micro-channels to remove 150–300W per chip while maintaining junction temperatures below 75°C for stable sustained computing performance. ToneCooling manufactures custom Sunway CPU cooling plates with CNC-machined aluminum or vacuum-brazed copper construction, achieving thermal resistance below 0.06°C/W. Prototype in 7–15 days, MOQ 5 pieces, ISO 9001 certified.
Last Updated: 2026-04-10 | Author: ToneCooling Thermal Engineering Team
What Is the Sunway Processor and Why Does It Need Liquid Cooling?
Sunway (申威) is China’s indigenous supercomputer processor architecture, developed by the National High Performance IC Design Center (NHPIDC) in Wuxi. The Sunway SW26010 processor — powering the Sunway TaihuLight supercomputer (93 petaflops, once ranked #1 globally on the TOP500 list) — contains 260 cores per chip with TDP of 250W, producing heat flux densities requiring direct liquid cooling for reliable operation in dense HPC clusters.
Key reasons Sunway processors require custom liquid cooling plates:
- High core count, high TDP: SW26010 has 260 cores at 250W; SW26010-Pro targets 300W+ with enhanced memory bandwidth
- Non-standard package: Sunway uses proprietary BGA packaging incompatible with standard Intel/AMD cold plate mounting hardware
- Dense cluster deployment: Supercomputer nodes are packed at extreme density — TaihuLight has 40,960 nodes requiring efficient per-chip cooling
- 24/7 sustained workloads: HPC applications (climate simulation, molecular dynamics, AI training) run at 100% load for days/weeks continuously
- National security requirements: Domestic Chinese supercomputers require China-based thermal solution suppliers for supply chain independence
Sunway CPU Cooling Plate Technical Specifications
| Parameter | Aluminum CNC | Copper Vacuum Brazed |
|---|---|---|
| Compatible processors | SW26010, SW26010-Pro | SW26010, SW26010-Pro, next-gen Sunway |
| Base material | Aluminum 6063-T5 (201 W/m·K) | Copper C1100 (391 W/m·K) |
| Channel type | CNC machined parallel channels | Micro-channel brazed |
| Thermal resistance (1.5 LPM) | 0.08°C/W | 0.05°C/W |
| Max TDP supported | 250W | 350W+ |
| Pressure drop (1.5 LPM) | 8 kPa | 14 kPa |
| Coolant | 50/50 EGW, DI water | 50/50 EGW, DI water |
| Mounting | Custom Sunway retention bracket | Custom Sunway retention bracket |
| Flatness | <0.05mm | <0.03mm |
| Surface finish | Anodized | Nickel plated (5–15 μm) |
| Leak testing | Pressure decay | Helium mass spectrometry |
| MOQ | 5 pcs | 50 pcs |
| Prototype lead time | 7–15 days | 15–25 days |
Sunway vs Other HPC Processor Cooling Requirements
| HPC Processor | Developer | Cores | TDP | Cooling Method |
|---|---|---|---|---|
| Sunway SW26010 | NHPIDC (China) | 260 | 250W | Direct liquid cooling (custom) |
| Sunway SW26010-Pro | NHPIDC (China) | 390+ | ~300W | Direct liquid cooling (custom) |
| MetaX C500 | MetaX (China) | GPU | ~350W | Direct liquid cooling |
| Hygon DCU | Hygon (China) | GPU | ~300W | Direct liquid cooling |
| Phytium FT-2000 | Phytium (China) | 64 ARM | 100W | Air or liquid |
| NVIDIA GB200 | NVIDIA (US) | GPU | 1200W | Direct liquid cooling |
| AMD EPYC 9005 | AMD (US) | 192 | 400W | Air or liquid |
ToneCooling Manufacturing Process for Sunway Cold Plates
- Sunway package analysis: Measure exact die location, package dimensions, and mounting hole pattern from customer-provided processor samples
- Custom bracket design: Engineer retention mechanism compatible with Sunway’s proprietary socket — spring-loaded or screw-mounted
- Cold plate design + CFD: Optimize micro-channel geometry for Sunway’s specific heat map using ANSYS Fluent CFD simulation (included free)
- Prototype: CNC machined aluminum in 7–15 days, MOQ 5 pcs. Copper brazed in 15–25 days.
- Validation: Thermal resistance measurement + leak testing + dimensional inspection
- Production: Scale to 100–50,000+ units with ISO 9001 quality documentation
Why Choose ToneCooling for Sunway HPC Cooling
- Custom socket expertise: We design cold plates for non-standard processor packages including Sunway, MetaX, Biren, Phytium, and Hygon — not just Intel/AMD
- Lowest prototype MOQ: 5 pieces (vs 50–100 at most HPC cooling suppliers)
- Free CFD simulation: ANSYS Fluent thermal analysis tailored to your Sunway processor’s specific heat dissipation profile
- Tsinghua-validated quality: Our precision manufacturing was selected by Tsinghua University for research-grade thermal components
- Complete thermal portfolio: Beyond cold plates, we supply vapor chambers, copper heatsinks, and AIO server coolers
Request Sunway CPU Cooling Plate Quote
Send us your Sunway processor specifications, node density, and coolant system parameters. ToneCooling engineers deliver custom cold plate design + CFD analysis within 48 hours.
➔ Get Sunway Cooling Plate Quote (48h Response) | info@tonecooling.com | US: +1 (832) 720-7542
Related: HPC Liquid Cold Plate Manufacturer: Selection Guide for Supercomputer Cooling
Related: Sunway Processor Liquid Cooling: Complete Thermal Engineering Guide
Frequently Asked Questions: Sunway CPU Cooling Plate
What is a Sunway CPU cooling plate?
A Sunway CPU cooling plate is a custom direct-to-chip liquid cooling heat exchanger designed for Sunway (申威) SW26010 and SW26010-Pro HPC processors. It circulates coolant through internal micro-channels to remove 150–300W per chip, maintaining junction temperatures below 75°C for sustained supercomputer workloads.
Why can’t standard cold plates be used for Sunway processors?
Sunway processors use proprietary BGA packaging with non-standard die locations and mounting patterns incompatible with Intel LGA or AMD SP socket cold plates. Custom mounting brackets and optimized channel layouts matching Sunway’s specific heat map are required.
Does ToneCooling support other Chinese HPC processors?
Yes. ToneCooling manufactures custom liquid cooling plates for Sunway (SW26010), MetaX (C500/C280), Biren (BR100), Hygon DCU, Phytium (FT-2000), and Kunpeng/Ascend processors, as well as Intel Xeon and AMD EPYC platforms.
What is the thermal resistance of ToneCooling’s Sunway cold plate?
Aluminum CNC: 0.08°C/W at 1.5 LPM. Copper vacuum brazed: 0.05°C/W at 1.5 LPM. Both configurations designed for 50/50 ethylene glycol-water coolant per ASHRAE W55 guidelines.
What is the MOQ and lead time for Sunway cooling plates?
Prototype: MOQ 5 pieces, 7–15 business day delivery (aluminum CNC). Production: MOQ 100 pieces, 3–6 weeks. Includes free ANSYS Fluent CFD simulation and ISO 9001 quality documentation.
Need a Custom Cold Plate for Your Project?
Send us your STEP/PDF file with TDP, coolant type, and flow requirements. Our engineers will deliver a thermal design proposal within 24 hours.
✓ ISO 9001 Certified | ✓ MOQ 5 pcs | ✓ Prototype in 4–6 weeks | ✓ NDA Available
Need a Custom Liquid Cold Plate?
Tell us your thermal requirements. Engineering team responds within 48 hours with design proposal and quotation.
Request a Quote →MOQ 5 pcs • Prototype 7-15 days • ISO 9001 Certified
