This guide covers Coolant Distribution Unit (CDU) design and selection for AI data center liquid cooling deployments. Topics include primary/secondary loop architecture, heat exchanger sizing, pump redundancy, filtration, and monitoring systems. ToneCooling provides engineering recommendations for CDU specification to support direct-to-chip cooling across GPU clusters and high-performance computing environments.
Coolant distribution unit is a critical component in modern thermal management systems. ToneCooling specializes in custom coolant distribution unit solutions for OEM and industrial applications. This article covers key aspects of coolant distribution unit technology, design considerations, and manufacturing processes.
Coolant distribution unit Overview
As a leading manufacturer of coolant distribution unit products, ToneCooling offers comprehensive engineering support for coolant distribution unit projects. Our coolant distribution unit solutions are designed for maximum thermal performance, reliability, and cost-effectiveness in demanding applications.
This guide on Coolant distribution unit cdu data center provides key insights for engineers and procurement teams. This guide covers Coolant Distribution Unit (CDU) design and selection for AI data center liquid cooling deployments. Topics include primary/secondary loop architecture, heat exchanger sizing, pump redundancy, filtration, and monitoring systems. ToneCooling provides engineering recommendations for CDU specification to support direct-to-chip cooling across GPU clusters and high-performance computing environments.
For industry standards and best practices, refer to ASHRAE thermal guidelines.
| Parameter | ToneCooling Specification |
|---|---|
| Material | Copper T2 / 6061 aluminum |
| Welding method | Transient liquid phase diffusion welding |
| Test pressure | 1 MPa (helium leak + nitrogen hold) |
| Working medium | PG25 (25% propylene glycol) |
| Custom design | Yes — DXF/STEP input accepted |
Frequently Asked Questions — Coolant distribution unit cdu data center
Does ToneCooling offer OEM and ODM services? — Coolant distribution unit cdu data center
Yes. ToneCooling provides full OEM and ODM services including custom design, prototyping, thermal simulation, and volume production. We serve customers in North America, Europe, and Asia-Pacific with engineering support and samples within 2–4 weeks.
What materials are used in ToneCooling liquid cold plates? — Coolant distribution unit cdu data center
ToneCooling manufactures cold plates in aluminum (6061/6063), copper (C1100/C1020), and stainless steel. Aluminum FSW cold plates are ideal for high-volume EV and industrial applications, while copper brazed cold plates provide maximum thermal conductivity (398 W/m·K) for high heat flux electronics.
What is the typical lead time for custom cold plates?
Prototype samples are delivered within 2–4 weeks. Production orders typically ship within 4–6 weeks after sample approval. ToneCooling responds to all quote requests within 24 business hours.
Get a Custom Thermal Solution from ToneCooling
ToneCooling is a professional liquid cooling solution provider specializing in custom cold plates, AIO coolers, and advanced thermal management systems. With ISO 9001:2015 certified manufacturing, we deliver prototype samples within 2–4 weeks. Contact ToneCooling today for a free consultation and quote — we respond within 24 business hours.
About ToneCooling
ToneCooling is a professional OEM manufacturer specializing in custom liquid cooling solutions, cold plates, and thermal management systems. With over 10 years of experience serving global OEM customers, we deliver high-performance cooling solutions for servers, data centers, electric vehicles, energy storage systems, and industrial applications. Our engineering team provides end-to-end support from thermal simulation and design optimization to prototype development and mass production. All products are manufactured in our ISO-certified facilities with rigorous quality control. Contact ToneCooling for custom cooling solutions tailored to your project requirements.
Why Choose ToneCooling for Coolant distribution unit
ToneCooling provides professional coolant distribution unit solutions with custom designs, fast prototyping, and competitive OEM pricing. Our coolant distribution unit products serve data center, EV, industrial, and semiconductor applications worldwide.
Contact ToneCooling for custom coolant distribution unit solutions. Visit tonecooling.com or email info@tonecooling.com. US: +1 (832) 720-7542. Response within 24 business hours.
Industry References & Standards
Need a Custom Liquid Cold Plate?
Coolant Distribution Unit Cdu Data is a high-performance thermal management solution engineered by ToneCooling for demanding applications.
ToneCooling engineers design thermal solutions for your specific requirements. Get a detailed response within 24-48 hours.
Coolant Distribution Unit Data Center is a critical component in modern thermal management. ToneCooling engineers this solution for AI servers, data centers, EV batteries, and power electronics requiring high-performance liquid cooling.
Coolant Distribution Unit Data Center: Key Specifications
When evaluating coolant distribution unit data center, engineers consider thermal resistance, pressure drop, flow rate, and material compatibility. ToneCooling provides detailed specs for every coolant distribution unit data center design, backed by CFD simulation and testing.
Why Choose ToneCooling for Coolant Distribution Unit Data Center
ToneCooling has manufactured over 50,000 coolant distribution unit data center units for global OEM customers. Our coolant distribution unit data center production features vacuum brazing furnaces below 10⁻⁴ mbar, FSW machines with ≤0.02mm flatness, and helium leak detection at 10⁻⁸ mbar·L/s. Every coolant distribution unit data center undergoes 100% pressure testing at 25 bar.
Our engineering team provides free coolant distribution unit data center design consultation, CFD simulation, and rapid prototyping in 7-14 days. Production coolant distribution unit data center orders ship in 4-6 weeks under ISO 9001:2015 quality management.
Need a Custom Liquid Cold Plate?
ToneCooling engineers design thermal solutions for your requirements. Response within 24-48 hours.
Why Choose ToneCooling for Coolant Distribution Unit Cdu Data?
ToneCooling is a liquid cold plate and AIO cooler manufacturer serving AI server, EV battery, and power electronics applications. Our coolant distribution unit cdu data solutions use copper T2 construction, transient liquid phase diffusion welding, and CFD-validated thermal design. Every unit passes 100% helium leak inspection and 6-hour nitrogen pressure hold testing before shipment.
Contact our thermal engineering team at info@tonecooling.com with your system layout and TDP requirements. → Request a quote
Last Updated: 2026-04-08
DR Kevin, Thermal Engineer, ToneCooling
Frequently Asked Questions
What is a Coolant Distribution Unit (CDU) and why is it needed?
A CDU is a heat exchange and pumping system that isolates the data center liquid cooling loop (secondary) from the facility chilled water loop (primary). This isolation protects IT equipment from facility water quality issues, maintains precise coolant temperature and pressure control, and enables different coolant types. CDUs are essential for direct-to-chip cooling deployments.
How do you size a CDU for an AI GPU cluster?
CDU sizing starts with total heat load calculation: number of GPUs multiplied by TDP per GPU (e.g. 700W for NVIDIA H100), plus CPU and ancillary loads, typically 1.2-1.5x GPU-only load. Add 20% design margin. A 10-rack GPU cluster at 80kW per rack requires a CDU rated for approximately 960 kW with N+1 pump redundancy.
What monitoring and redundancy features should a data center CDU include?
Essential CDU features include redundant pumps (N+1 minimum), supply and return temperature sensors, pressure differential monitoring, flow meters, leak detection with automatic shut-off, coolant level and conductivity monitoring, and BMS/DCIM integration via SNMP or Modbus. Premium CDUs add variable-speed drives for energy optimization.
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
