No Disassembly, No Speed Reduction, No Liquid Leakage: Lab Companion CW Series Rapid Temperature Change Chamber Full-Rack AI Server Test

1. Core Challenges in Full-Rack AI Server Reliability Validation

1.1 Full-Rack Testing: Indispensable for AI Server Mass Production

Full-system reliability validation at the complete rack level is one of the most critical and challenging qualification procedures before AI server launch. Unlike component-level or single-board testing, full-rack environmental testing requires placing a fully configured 42U server cabinet into a thermal chamber and running continuous temperature cycling, temperature & humidity exposure, and low-temperature storage tests under full load.

This procedure simulates extreme environmental conditions during transportation, data center deployment, and high-intensity AI computing operations, verifying the overall system stability of complete rack solutions. It is a mandatory step to guarantee consistent performance and reliability for commercial AI computing hardware.

1.2 Critical Pain Points of Traditional Test Chambers for 30kW Liquid-Cooled AI Servers

In 2026, a leading Chinese AI server manufacturer launched a new generation of liquid-cooled AI servers. Equipped with 8 high-performance GPUs per rack and adopting cold-plate liquid cooling, the full-load power consumption exceeds 30kW. When validating this high-density computing hardware, the customer’s traditional walk-in temperature chambers failed to meet test requirements, exposing three industry-wide bottlenecks for high-power AI server qualification.

Insufficient cooling capacity: Modern fully loaded AI servers generate 3–5 times higher heat flux than traditional servers, with single-rack peak power ranging from 50kW to 100kW. Conventional environmental chambers typically offer less than 10kW cooling capacity, which cannot offset continuous 30kW+ self-heat generation. This leads to unstable chamber temperature and failed environmental simulation.

No compatibility with liquid cooling loop operation: The new-generation servers adopt cold-plate liquid cooling. Standard chambers lack sealed wall-through ports for liquid cooling pipelines, making it impossible to maintain real-world CDU cooling circulation during testing. Without active liquid cooling operation, test conditions cannot replicate actual data center operating status.

Unrepresentative disassembled testing and high third-party risks: Testing separate components cannot reproduce the integrated thermal field, airflow organization, and system synergy of a complete assembled rack. Meanwhile, third-party certification testing involves high costs, long lead times of over one month, and critical risks of new product technical leakage, severely hindering R&D iteration and time-to-market schedules.

2. Lab Companion Customized Solution for High-Power Full-Rack Testing

2.1 Brand Strength: Made in China, Global Reliability Test Solution Provider

Headquartered in China, Lab Companion is a professional R&D and manufacturing enterprise focusing on environmental reliability test equipment. With decades of in-depth industry experience, independent intellectual property rights, and standardized production systems, the brand has long been committed to delivering high-precision, high-load environmental simulation solutions for advanced computing, communications, and new energy industries worldwide.

Adhering to Chinese manufacturing quality and global service standards, Lab Companion’s product portfolio covers standard and customized temperature/humidity chambers, rapid thermal change chambers, and thermal shock chambers. The product range covers test volumes from 50L to 50m³, temperature ranges from -80℃ to 200℃, and temperature change rates from 5℃/min to 25℃/min. The CW series large-scale walk-in rapid temperature change chamber is specially developed for full-system testing of large high-heat-generating equipment and has been widely deployed in data centers across Asia-Pacific regions.

2.2 Customer’s Strict Full-Load Test Requirements

To fully restore real data center operating conditions, the customer defined clear and rigorous technical indicators for the turnkey test solution:

Full-rack space and load capacity: The chamber must accommodate a complete standard 42U server cabinet (1200mm × 600mm × 2000mm) with a total load weight of over 800kg. The cabinet can be pushed in entirely without tilting or disassembly, ensuring complete machine integrity during testing.

High thermal load tolerance: Under continuous full-load server operation with self-heating power above 30kW, the chamber must stably maintain a test temperature range of -20℃ to +55℃ and sustain a minimum temperature change rate of 5℃/min without performance degradation.

Liquid cooling loop compatibility: Reserved sealed wall-through interfaces for liquid cooling pipelines support external CDU connection and normal cooling liquid circulation. The interface design prevents cold bridge condensation, air leakage, and temperature field interference during long-duration tests.

Long-term operational stability: The complete test cycle includes high-temperature & high-humidity aging, low-temperature storage, and temperature cycling, requiring 300+ hours of continuous unattended operation with zero downtime, stable temperature control, and no overshoot or excessive fluctuation.

Multi-channel high-precision data acquisition: Equipped with no less than 20 independent temperature acquisition channels to monitor key positions including GPUs, cold plates, and liquid inlet/outlet ports. All test data is automatically recorded, tamper-proof, and exportable as complete standardized test reports.

2.3 Core Technical Advantages of Lab Companion CW2000 Chamber

The Lab Companion CW2000 walk-in rapid temperature change chamber is fully customized to address high-power liquid-cooled AI server test pain points, delivering industry-leading performance for high-heat-load full-rack validation:

Oversized test space and super load capacity: The internal dimension reaches 4m × 3m × 2.5m, supporting simultaneous testing of 2–4 full-size AI server racks. It stably handles 1000kg payload and 50kW continuous thermal load, with expandable load capacity to meet diverse high-density computing test scenarios.

Wide temperature range and high-speed thermal cycling: It supports a temperature range of -70℃ to +150℃ and linear/non-linear temperature change rates of 5–25℃/min. The design complies with GB/T 2423.2-2008 and the latest T/UNP 538-2025 AI industry standards, ensuring fully compliant and credible test results.

Dedicated liquid cooling compatible design with zero leakage risk: Custom sealed wall-through pipeline interfaces perfectly adapt to external CDU liquid circulation. Built-in liquid leakage detection and intelligent alarm systems provide real-time risk monitoring, ensuring zero liquid leakage, zero condensation, and zero temperature field disturbance throughout the test.

Ultra-precise temperature control and traceable data: Temperature & humidity uniformity is controlled within ±2K and fluctuation within ±1K. Multiple high-sensitivity sensors and 20+ acquisition channels ensure full-point monitoring of core server components, providing accurate, reliable, and traceable test data for R&D verification and product certification.

Intelligent thermal field reconstruction: Equipped with 16 adjustable-speed fans and 8 sets of temperature-controlled liquid cooling interfaces, the chamber dynamically simulates real data center airflow organization, reproducing typical heat dissipation architectures such as hot/cold aisle layout, backplate heat exchange, and rack-level liquid cooling.

3. On-Site Deployment and 300-Hour Full-Load Validation

3.1 Professional On-Site Installation and Commissioning

Lab Companion completed full on-site installation, calibration, and commissioning. The wide chamber door allows integral 42U cabinet entry without tilting or disassembly, greatly shortening test preparation time. The customized liquid cooling wall-through structure achieves excellent sealing performance with no air leakage or condensation, maintaining stable and consistent internal temperature fields.

3.2 300 Hours of Uninterrupted Full-Load Operation

During the formal validation phase, the system completed 300 consecutive hours of integrated reliability testing. Under sustained 30kW+ full-load self-heating conditions, the CW2000 chamber stably implemented full-range temperature switching and maintained a standard temperature change rate above 5℃/min without speed reduction or temperature attenuation.

The 20-channel temperature monitoring system synchronously captured real-time temperature data of core hardware. Throughout the long-cycle test, the equipment operated stably with no faults, no shutdowns, and no abnormal temperature fluctuations.

3.3 One-Pass Qualification for All Test Items

The customer successfully passed all high-temperature & high-humidity, low-temperature storage, and temperature cycling tests in one attempt, completing pre-launch reliability certification for the new liquid-cooled AI server. Lab Companion’s CW series solution completely resolved the long-standing industry pain points of insufficient cooling capacity, incompatible liquid cooling operation, and unrepresentative disassembled testing.

4. Empowering Global AI Computing Infrastructure Innovation

4.1 Global Deployment and Industry Recognition

As a China-based high-end test equipment brand serving global markets, Lab Companion’s high-load walk-in environmental chambers have been widely applied in data centers and R&D laboratories across multiple Asia-Pacific countries and regions. With superior high-heat-load tolerance, stable precision control, and customized industrial design, the brand has gained high recognition in the global AI computing hardware industry.

4.2 Solid Technical Support for High-Density Computing Iteration

Heat is the core enemy of stable AI computing. As the power density and thermal load of next-generation AI servers continue to rise, traditional test equipment can no longer meet full-scenario and high-fidelity reliability verification demands.

Lab Companion CW series rapid temperature change chambers deliver no disassembly for full-rack testing, no speed reduction under high heat load, no liquid leakage during liquid cooling operation. With core advantages including 50kW high thermal load capacity, 5–25℃/min fast thermal cycling, and professional liquid cooling compatibility, the solution provides authoritative and reliable environmental simulation support for R&D verification and mass production quality control of liquid-cooled AI servers and high-density computing equipment.

Upholding high-standard Chinese intelligent manufacturing, Lab Companion continues to empower global AI infrastructure innovation, helping computing hardware enterprises accelerate product iteration, reduce R&D risks, and build solid reliability foundations for the global high-performance computing industry.