English 
Deutsch 
Français 
Written by Robin
Senior Engineer, Doaho Test (DHT®)
Global Demand Surge: The Strategic Role of China’s Thermal Shock Chambers
As a core piece of testing equipment that simulates extreme temperature fluctuations, thermal shock chambers are essential for verifying material durability and ensuring product reliability. According to the latest report, the global thermal shock chamber market is expected to surpass USD 5 billion by 2025, with China’s growth rate far outpacing the global average.
In recent years, China’s manufacturing industry—driven by advancements in R&D, smart manufacturing, and cost-efficiency—has shifted from “price competition” to a dual focus on quality and innovation, emerging as a powerful force in the global environmental testing equipment market. Many well-known Chinese brands now produce thermal shock chambers whose temperature ramp rates and control precision rival, or even surpass, those of international giants, gaining a competitive edge in sectors such as defense, semiconductors, and new energy.
As a professional manufacturer of environmental test equipment in China, DHT® has leveraged nearly 20 years of R&D and production expertise to build strong technical advantages in the thermal shock chamber segment, steadily becoming a trusted partner in the global market.
DHT®: A Synonym for Technological Breakthroughs and Hardcore Strength
As a leading brand in China’s environmental testing industry and a supplier of high-quality thermal shock chambers, DHT® has, through 15 years of technological accumulation, grown into one of the industry’s frontrunners. Its thermal shock chambers are recognized for their ultra-wide temperature range (-70°C ~ +250°C), high-precision control (±0.5°C fluctuation), and the innovative CHDHT hot-cold humidity balance intelligent control technology.
Core Advantages of DHT® Thermal Shock Chambers
Extreme Performance, Precision & Reliability Equipped with a self-developed intelligent control system and a unique air circulation design, DHT® thermal shock chambers cover a range from -70°C to +250°C, delivering temperature uniformity of ±0.5°C. This ensures test data that is both highly accurate and fully repeatable.
Defense-Grade Quality, Built to Last Key components are sourced globally: controllers from leading European brands, German Bitzer compressors for refrigeration, French Schneider electrical components, American Honeywell sensors, and Japanese Omron relays and switches. The inner chamber is welded from stainless steel in one piece, offering outstanding corrosion resistance and thermal endurance—extending service life by 30%.
Smart Control, Efficiency Redefined Featuring a PLC-based control system, test cycles can be pre-programmed and executed automatically. The integrated touchscreen operating system supports programmatic control, data logging, and remote monitoring. Compatibility with mainstream laboratory management systems further enhances operational efficiency.
Ultra-Low Failure Rate & Extended Lifespan By adopting first-tier international components, DHT® ensures an exceptionally low failure rate and a service life exceeding 25 years, significantly reducing maintenance costs.
Energy Efficiency Optimization Advanced refrigeration and zone-control technology reduces energy consumption by approximately 30%, achieving high performance with eco-friendly efficiency.
Comprehensive Safety Protection Built-in safeguards include overpressure protection, leakage protection, and over-temperature protection, guaranteeing safety and reliability throughout the testing process.
Customization & Application Flexibility DHT® offers strong customization capabilities, supporting non-standard dimensions, three-zone configurations, and ultra-low liquid nitrogen cooling solutions. With multiple chamber sizes (100L–1500L) and tailored solutions, DHT® meets testing demands across a wide range—from electronic components and small modules to complete system assemblies. Customers benefit not only from tailor-made equipment but also from a robust service package including a 5-year extended warranty, 24/7 technical support, remote monitoring, and diagnostics.
Unmatched Value for Money DHT® stands out in global competition by offering equipment priced at just 60%–70% of international brands while delivering comparable—if not superior—performance. This outstanding price-performance ratio makes DHT® the preferred choice for many enterprises.
DHT® Thermal Shock Chamber Specifications
| DHT® Mini Thermal Shock Test Chamber(Two-Zone) | ||
| TemperatureChamberModel | Model | DHTT-27-M |
| Working Room Volume | L | 27 |
| Temperature Range | ℃ | (Pre-heating)+180 (Pre-cooling)-65 |
| ThermaShock Range | ℃ | (-40,-50,-60)~+(+80,+120,+150) |
| Heating Rate | °C/min | 2.0~4.0 |
| CoolingRate | °C/min | 0.7~3.5 |
| Temperature Fluctuation | ℃ | ±0.1~±0.5 |
| Temperature Uniformity | ℃ | 0.5~2.0 |
| Testing Mode | Lift-and-shift switching | |
| Transfer Time | S | <15 |
| Transfer Mode | Pneumatic | |
| Tempearture Recovering Time | min | 5 |
| Internal Dimensions | W(mm) | 300 |
| D(mm) | 300 | |
| H(mm) | 300 | |
| External Dimensions | W(mm) | 500 |
| D(mm) | 1100 | |
| H(mm) | 1330 | |
| Cooling Mode | Air Cooling | |
| Power Voltage | 220V±10%,50~60Hz | |
| Rated Power | 5kW | |
Industry Trends and Future Outlook
The technological development of thermal shock chambers is advancing along three clear directions: First, ultra-fast temperature cycling, pursuing the ultimate temperature change rate; Second, multi-factor coupled testing, enabling the simultaneous application of temperature, humidity, vibration, and other environmental stresses; Third, fully automated intelligent systems, integrating self-diagnosis, adaptive control, and predictive maintenance functions.
In addition to traditional temperature cycling performance, the market demand for intelligent features such as remote monitoring, AI-driven fault prediction, and energy-efficient designs is growing significantly. To address the challenges of the global market, DHT® has established overseas service centers and spare parts warehouses, greatly enhancing its localized service capabilities. This enables rapid response to customer needs, minimizes downtime, and ensures the continuity of customers’ R&D and production processes.
If you are looking for a high-performance thermal shock chamber, or require a customized testing solution for special applications, we invite you to contact DHT® today. Our technical team will provide you with professional consultation to help your products deliver outstanding performance even under extreme conditions.