Friction Stir Welding
FSW Liquid Cold Plates
High-strength friction stir welded cold plates for demanding thermal and sealing performance.
Engineering-grade thermal management, from prototype to mass production
From thermal design to production, ToneCooling delivers high-reliability liquid cooling solutions for data centers, EV battery systems, IGBT modules, and other high-power applications. Our manufacturing processes comply with ISO 9001 quality standards and reference ASHRAE thermal guidelines.
Specifications
A liquid cold plate is a metal heat exchanger — typically copper or aluminum — with precision-machined internal flow channels through which coolant circulates to absorb heat from high-power components such as CPUs, GPUs, IGBTs, and EV battery cells. ToneCooling manufactures custom liquid cold plates with thermal resistance as low as 0.0136°C/W, handling heat flux exceeding 200 W/cm².
As AI computing scales — from NVIDIA GB200 GPUs generating 1,200W+ per chip to EV battery packs drawing hundreds of kilowatts — air cooling has reached its thermal limits. Single-phase liquid cooling through precision cold plates is now the dominant solution for data centers, power electronics, and electric vehicles.
ToneCooling is a custom liquid cold plate manufacturer providing complete engineering support from CFD thermal simulation through FSW welding, vacuum brazing, and full production validation. Our process complies with ISO 9001 and references ASHRAE data center thermal guidelines.
ToneCooling TC1000 vs Competitor — Internal Test Data
Test conditions: ~1,000W load, Tin ≈ 28°C. Last Updated: 2025-04.
All three TC1000 rows below are the same model at three different flow-rate test points (Q = 1.0 / 2.0 / 2.5 LPM). Source: ToneCooling Internal Test Report.
| Model | Q (LPM) | Tc (°C) | Rc (°C/W) | ΔP (kPa) |
|---|---|---|---|---|
| Competitor | 1.0 | 73.87 | 0.0444 | 1.35 |
| Competitor | 2.0 | 68.45 | 0.0381 | 4.78 |
| TC1000 | 1.0 | 64.52 | 0.0365 | 2.01 |
| TC1000 | 2.0 | 56.41 | 0.0278 | 7.51 |
| TC1000 | 2.5 | 54.59 ▼ | 0.0261 ▼ | 11.37 |
▼ Best result. TC1000 chip temp −10°C vs competitor at 2.0 LPM. Source: ToneCooling Internal Test Report.
Explore ToneCooling's core liquid cooling product lines for AI infrastructure, EV battery systems, server platforms, and high-power electronics.
Friction Stir Welding
High-strength friction stir welded cold plates for demanding thermal and sealing performance.
Vacuum Brazing
Complex internal flow-path cold plates built for high heat flux and compact thermal packaging.
Tube Embedding
Cost-effective tube-embedded cold plates for industrial, telecom, and power conversion cooling.
Server Computing
Precision liquid cooling cold plates for server CPUs and high-density compute platforms.
AI / Data Center
Direct-to-chip cold plates for modern AI servers, GPU trays, and high-density rack cooling.
EV & Energy Storage
Custom battery cooling plates for cell temperature uniformity, safety, and cycle-life stability.
From hyperscale AI clusters to electrified mobility and power conversion systems, ToneCooling supports thermal reliability across mission-critical applications.
Custom cold plates for direct-to-chip cooling in AI servers, HPC nodes, and high-density racks.
Platform-specific liquid cold plates for NVIDIA GB200, H200, AMD SP5, and similar compute systems.
Compact liquid cooling for 400G / 800G optical modules and high-speed data center optics.
Engineered battery cold plates for improved thermal uniformity, pack safety, and cycle-life stability.
Reliable liquid cooling for IGBT modules requiring flatness, leak control, and thermal stability.
Application-driven cold plate solutions for flexible HVDC systems, converters, and high-power electrical equipment.
ToneCooling combines thermal engineering expertise with in-house manufacturing to support prototype-to-volume production with tighter process control.
FSW — Solid-State Joining
High-integrity solid-state joining for leak-tight, high-strength cold plate structures.
VB — High Heat Flux
Clean, void-free joining for complex internal cooling channels and copper cold plates handling >200 W/cm².
TE — Flexible Routing
Precision copper tube bending and press-fit embedding for cost-efficient industrial liquid cooling.
80+ Machines In-House
5-axis CNC machining for channel features, manifold interfaces, and custom geometry. Tolerance ±0.01mm.
Automated Seal Validation
Automated air-tightness and pressure testing on every unit. Results archived against QR traceability code.
OEM Production Line
Final integration, torque verification, and pressure validation. Supports high-mix and high-volume OEM production.
Production Scale
From rapid prototypes to stable volume supply, ToneCooling supports high-mix and high-volume manufacturing with controlled quality, repeatable processes, and practical engineering support.

Customers choose ToneCooling for practical engineering support, manufacturing control, and dependable execution from concept to production.
Engineering input for heat load, flow path, pressure drop, materials, and packaging constraints.
Better control over joining, machining, testing, and production consistency — no critical outsourcing.
Verification-focused manufacturing for reliable performance in demanding thermal systems.
Clear, engineering-oriented quote support for custom projects and OEM development needs. Within 24 hours.
A practical path from sample validation to stable volume supply — same team, same process control.
Serving customers across data center, EV, telecom, and industrial power applications in 30+ countries.
ToneCooling (ToneCooling Technology Co., Ltd, 广东东吉热控精密制造有限公司) is a Chinese National High-Tech Enterprise specializing in custom liquid cold plates, vapor chambers, and precision thermal management solutions.
Founded in 2004 by CEO Li Bing, a 26-year thermal management veteran formerly with a China Top 500 enterprise, ToneCooling operates a unified 30,000 m² precision manufacturing base in Boluo, Guangdong, with 200+ employees (40% technical staff) — average 20 years of industry experience.
Core manufacturing capabilities include 80+ CNC machines, friction-stir welding (FSW), vacuum brazing, aluminum tunnel brazing (1.2 m × 68 m line), copper-tube brazing, reflow soldering, vacuum diffusion welding, cold forging, die casting, and high-speed stamping — all qualified under ISO 9001, ISO 14001, and IATF 16949 management systems. Annual capacity exceeds 1,000,000+ cold plates/year.
ToneCooling holds 46 granted patents (14 invention + 32 utility model) and maintains joint research laboratories and postgraduate workstations with Huazhong University of Science and Technology, with additional R&D collaborations with Tsinghua University, the National University of Defense Technology, and Northwestern Polytechnical University.
ToneCooling serves customers across 30 countries in AI computing (NVIDIA GB200 / GB300), data centers, EV battery packs and controllers, grid-scale energy storage (ESS/BESS), photovoltaic inverters, medical imaging (CT, angiography, linear accelerators), high-power lasers, 5G infrastructure, and aerospace — including listed customers such as Hewang Electric, which awarded ToneCooling the 2024 Best Partnership Award.
Global delivery and local support are provided through ToneCooling's three-entity network:
Learn how ToneCooling approaches design validation, manufacturability, and RFQ preparation for custom liquid cold plate projects.
Design Guide
A CTQ-driven checklist to improve manufacturability, sealing reliability, and quoting clarity.
Read the GuideProcess Comparison
Compare joining processes for thermal performance, manufacturability, and project fit.
Compare ProcessesRFQ Guide
See what information helps accelerate quoting, design alignment, and project feasibility review.
View RFQ GuideResource Center
Browse design guides, application notes, and engineering content across liquid cooling topics.
Browse ResourcesAnswers to the most common questions about ToneCooling's capabilities, certifications, and RFQ process.
ToneCooling (ToneCooling Technology Co., Ltd, 广东东吉热控精密制造有限公司) is a Chinese National High-Tech Enterprise founded in 2004, specializing in custom liquid cold plates, vapor chambers, and thermal management solutions. ToneCooling operates a unified 30,000 m² precision manufacturing base in Boluo, Guangdong, producing 1,000,000+ cold plates/year with 200+ employees (40% technical staff) and 46 granted patents. The company is certified to ISO 9001, ISO 14001, and IATF 16949. Local operations are delivered through ToneCooling Texas LLC (USA) and TONECOOLING AUSTRALIA PTY LTD (AU, ABN 96 653 174 040).
ToneCooling's manufacturing and R&D headquarters is located at No. 102 Huangchengtang Road, Shiwan Town, Boluo County, Huizhou City, Guangdong Province 516127, China — a unified 30,000 m² precision manufacturing base. Local entity support is provided through ToneCooling Texas LLC at 5900 Balcones Drive, Suite 100, Austin, TX 78731, USA (EIN 61-2341902), and TONECOOLING AUSTRALIA PTY LTD at Suite 69, 139 Cardigan Street, Carlton VIC 3053, Australia (ABN 96 653 174 040).
ToneCooling's 30,000 m² precision facility is equipped with 80+ CNC machines, 2 modular welding production lines, 3 friction-stir welding stations, a 1.2 m × 68 m aluminum tunnel brazing line, vacuum brazing furnaces, vacuum diffusion welding, cold/hot forging presses, die-casting, high-speed stamping, and full thermal-resistance / pressure-drop / leak-tightness test equipment including HLT560 leak testers. Annual capacity exceeds 1,000,000+ cold plates/year, with all processes qualified under ISO 9001, ISO 14001, and IATF 16949.
ToneCooling serves global OEMs across 30 countries in AI computing (NVIDIA GB200 / GB300), data centers, EV battery packs and controllers, grid-scale battery energy storage (ESS/BESS), photovoltaic inverters, medical imaging (CT scanners, cardiovascular angiography, linear accelerators), high-power lasers, 5G infrastructure, aerospace, and consumer electronics. Listed customers include Hewang Electric, which awarded ToneCooling the 2024 Best Partnership Award.
ToneCooling is certified under ISO 9001 (quality), ISO 14001 (environmental), and IATF 16949 (automotive). It was designated a National High-Tech Enterprise by the Chinese government in 2019 and received the Second Prize for Scientific and Technological Progress from the Guangdong Provincial Department of Science and Technology in 2021. ToneCooling holds 46 granted patents and operates joint research laboratories and postgraduate workstations with Huazhong University of Science and Technology, with additional R&D collaborations with Tsinghua University, the National University of Defense Technology, and Northwestern Polytechnical University.
Standard MOQ is 5 pieces for prototypes and 50+ pieces for production. Prototype lead time is 7–15 days after DFM approval. Mass production lead time is typically 4–6 weeks depending on process and quantity. Engineering responses to new RFQs are returned within 24 hours, handled by the local entity closest to the customer: ToneCooling Texas LLC for North American RFQs, TONECOOLING AUSTRALIA PTY LTD for APAC RFQs, and the China HQ for global RFQs.
Start Your Project
Share your heat load, envelope size, coolant requirements, target pressure drop, and performance goals. Our engineering team will review your application and respond with a practical solution and quotation.
If you have any questions, please do not hesitate to contact us.
