Mastering Thermal Loads in High-Density Data Centers
Precision-engineered liquid cold plates optimized for power density, system architecture, and long-term reliability.
ACT designs and manufactures high-performance liquid cold plates for both single-phase and two-phase direct-to-chip cooling systems used in advanced compute and power-dense data centers. Each solution is engineered to integrate seamlessly with server architectures, optimizing heat flux, flow distribution, and long-term reliability.
With decades of hands-on thermal experience, ACT helps data center operators and system designers push performance limits while avoiding unnecessary complexity and operational risk.
Liquid Cold Plate Capabilities
High-Performance Cold Plate Designs Optimized for Power Density & System Architecture
ACT liquid cold plates are engineered to support higher power densities, long-term reliability, and scalable deployment in modern data center environments. Designs begin with the complete system architecture in mind—incorporating power maps, mechanical constraints, and facility water conditions—to deliver efficient, dependable cooling aligned with both rack-level and facility-level requirements.
Cold Plate Design & Manufacturing Capabilities
Advanced thermal, mechanical, and fluid dynamics design for data center cooling applications
Single-phase and two-phase cold plate architectures optimized for performance, efficiency, and reliability
Optimized internal flow paths for single -or multi-zone heat inputs on a single cold plate
Scalable designs supporting pilot programs through high-volume production
ISO 9001 & AS9100 certified manufacturing for consistent quality and reliability
ACT supports both single-phase and two-phase cold plate solutions to meet the evolving thermal demands of next-generation data centers. Each approach offers distinct advantages depending on power density, facility infrastructure, and system complexity.
| Cooling Approach | Recommended Application |
|---|---|
| Single-Phase | Moderate heat flux (<200 W/cm²), rack density (<400kW per rack), chilled-water data centers |
| Two-Phase | High heat flux (>500 W/cm²), high density rack (>400kW), compact packaging (server and rack), warm-water data center facilities |
Single-Phase Liquid Cold Plates
Single-Phase Cold Plates for AI and HPC Applications
ACT’s single-phase cold plates deliver reliable, high-performance cooling for advanced compute components while integrating seamlessly into existing water-cooled infrastructures. By combining advanced thermal modeling and detailed flow optimization, ACT helps customers push single-phase cooling beyond traditional limits, supporting higher heat fluxes without sacrificing system reliability and implementation.
ACT designs single-phase cold plates to maximize heat transfer efficiency, manage localized hot spots, and maintain stable performance across varying operating conditions. This approach allows data center operators and system designers to extend the practical range of single-phase architectures while preserving the simplicity, serviceability, and familiarity of conventional liquid cooling loops.
Two-Phase Liquid Cold Plates
Two-Phase Cold Plates for AI and HPC Applications
As AI and HPC platforms push beyond the practical limits of single-phase cooling, ACT’s two-phase liquid cold plates enable a new class of ultra-dense data center architectures. By leveraging phase-change heat transfer, ACT two-phase designs efficiently and predictably remove extreme heat loads, supporting next-generation compute platforms exceeding 7,500 W TDP.
ACT’s two-phase cold plates are engineered to dramatically reduce coolant flow requirements while maintaining stable device temperatures under highly concentrated and transient thermal loads. This enables high rack densities, simplified fluid distribution, and operation with elevated facility water temperatures, unlocking new opportunities for data center efficiency and architectural flexibility.
Key Performance Attributes
- Heat flux capability exceeding 500 W/cm2, enabling extreme device-level power density
- Thermal resistance below 0.080°C·cm²/W for tight temperature control under peak loads
- Operation with facility water temperatures above 45°C, supporting warm-water data center strategies
- Coolant flow reductions greater than 50% compared to single-phase liquid cooling solutions
Unlock Extreme Compute Cooling
Discover how two-phase cold plates deliver extreme heat removal, lower coolant flow, and higher rack power density for AI, HPC, and next-gen compute. Download the data sheet to see the performance data and specifications.
Choosing your cold plate solution
Single-Phase or Two-Phase —Which Fits Your Data Center?
Selecting the right liquid cold plate architecture is both a system-level and facility-level decision. Power density, thermal margins, fluid infrastructure, serviceability, and long-term scalability all play critical roles.
ACT engineers apply detailed thermal modeling and system-level analysis to recommend the optimal approach—whether extending the capabilities of single-phase cooling or enabling next-generation performance with two-phase designs.
Share your power map, rack configuration, and facility constraints to receive a data-driven recommendation tailored to your performance, reliability, and efficiency goals without overdesign or unnecessary infrastructure changes.
