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The WIST Two-Zone Thermal Shock Chamber is designed to expose test specimens to alternating high and low temperature environments to evaluate their resistance to thermal stress, thermal expansion, contraction, and temperature-induced damage. The chamber features separately controlled upper hot and lower cold temperature zones. A motorized specimen basket automatically transfers the test specimen vertically between the two zones in less than 10 seconds. The hot zone operates from ambient temperature to +200°C, while the cold zone operates from ambient temperature to -70°C. The system features a PLC-based 7-inch touchscreen HMI, programmable test profiles, temperature monitoring, data logging, and multiple safety protections.
| Hot Zone Temperature Range | Ambient to +200°C (within 40 minutes) |
| Cold Zone Temperature Range | Ambient to -70°C (within 55 minutes) |
| Temperature Fluctuation | Temperature deviation: Less than ±0.5°C |
| Temperature Uniformity | Temperature gradient: Less than ±2°C |
| Temperature Recovery Time | Hot zone: Less than 5 minutes; cold zone: Less than 10 minutes |
| Specimen Transfer Time | Less than 10 seconds |
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