Industrial
Vacuum Test Chambers
The DHT® Vacuum Test Chambers are advanced environmental simulation
systems specifically engineered to replicate high-altitude, low-pressure
conditions while delivering precise temperature and humidity control.
Designed with a focus on long-term operational stability, minimal
maintenance requirements, and superior performance, these chambers are
ideal for rigorous testing applications across aerospace, defense,
electronics, and export-oriented manufacturing sectors.
Featuring a broad internal volume range from 100 to 1500 liters, the
chambers accommodate a wide variety of test specimens and
configurations. They operate across a wide temperature range of -70°C to
+180°C, with customizable starting points available at -20°C, -40°C, or
0°C to suit specific testing protocols. The system ensures excellent
temperature uniformity—within ±1.0°C—even under dynamic vacuum
conditions, allowing accurate, repeatable measurements of component
behavior under simulated altitude stress.
Engineered with high-efficiency vacuum systems, intelligent control
algorithms, and robust stainless steel interiors, the DHT® Vacuum Test
Chambers deliver reliable performance for critical tasks such as
avionics validation, sensor calibration, battery insulation assessment,
and altitude adaptability verification of high-reliability products.
Benefits
Advanced Control System: Equipped with an intelligent controller imported from Europe, the chamber is easy to operate, user-friendly, and highly stable, ensuring precise and controlled data during the testing process.
Optimized Air Circulation System: The specially designed air circulation system provides uniform airflow and precise testing conditions for the samples, ensuring the accuracy and repeatability of test results.
Precise Humidity Control: The optimized wet-bulb and dry-bulb humidity measurement system ensures highly accurate humidity control, essential for reliable testing under low-pressure conditions.
Air-Cooled Refrigeration System: Featuring a high-efficiency air-cooled refrigeration system, the chamber maintains stable operating temperatures even in low-pressure test environments, enhancing the durability of the equipment.
Self-Diagnosis System: Integrated with a self-diagnosis system, the chamber can detect and alert users to any operational issues, facilitating maintenance and repair, and ensuring continuous testing operations.
Specifications
| Temperature Range (°C) | 0~180；-40~180； |
| -65~180；-70~180 | |
| Temperature Fluctuation (°C) | ≤±1.0 (atmospheric pressure, no load) |
| Temperature Uniformity (°C) | ±2.0 (atmospheric pressure, no load) |
| Temperature Gradient (°C) | ≤2.0 |
| Temperature Rate (°C/min) | Heating/Cooling Rate: 0.5 ~ 1.0°C/min |
| Non-linear Adjustable (atmospheric pressure, no load) | |
| Temperature Deviation (°C) | ≤2.0 (atmospheric pressure, no load) |
| During low pressure composite testing: ±3 | |
| Pressure Recovery Rate (kPa/min) | ≤10 |
| Pressure Range (kPa) | Customizable |
| Pressure Accuracy (kPa) | 0.1 |
| Pressure Variation Rate (kPa/min) | ≤10 |
| Available Temperature Range for Humidity Control (°C) | 15 ~ 95 |
| Relative Humidity Range (%RH) | 20~98 |
| Humidity Accuracy (%RH) | ±1.0 ~±3.0 |