Rapid Temperature Change Test Chamber 5°C/min Linear Ramp -40°C to +150°C 225L Programmable
Product Overview
HongCe Rapid Temperature Change Test Chamber is a programmable environmental testing system designed for thermal cycling and temperature change testing of electronic, automotive, and industrial components. The chamber delivers a linear temperature change rate up to 5°C/min within a temperature range of -40°C to +150°C, allowing engineers to reproduce rapid thermal stress conditions in a controlled laboratory environment.
With a 225L test volume, SUS304 stainless steel interior, and a 7-inch color touch screen PLC controller, this chamber suits R&D verification, design qualification, and routine reliability screening applications that require repeatable heating and cooling ramps.
Product Introduction
Many product failures occur not at a single extreme temperature but during temperature transitions. Thermal expansion and contraction, solder joint stress, and material fatigue are typically triggered when a product is cycled rapidly between hot and cold conditions.
The HongCe Rapid Temperature Change Test Chamber addresses this by combining a high-capacity refrigeration system, balanced heating elements, and a linear ramp control algorithm. The result is a chamber that maintains a defined temperature change rate across the full -40°C to +150°C range, giving test engineers a repeatable platform for thermal cycling, temperature shock simulation, and environmental stress screening.
Main Features
- Linear Temperature Change Rate: Adjustable 1-5°C/min linear ramp, suitable for IEC 60068-2-14 Test N temperature change testing.
- Wide Temperature Range: -40°C to +150°C with temperature fluctuation of ±0.5°C and uniformity of ±2.0°C.
- Programmable PLC Control: 7-inch color touch screen with 100-step programmable test profiles, cyclic operation and alarm output.
- Robust Refrigeration System: Imported hermetic compressor with R404A refrigeration circuit designed for continuous rapid ramping duty.
- Data Management: USB data export, RS-485 and Ethernet interfaces for connection to laboratory data systems.
- Safety Protection: Over-temperature, over-current, compressor overload, refrigerant high/low pressure and door interlock protections.
International Reference Standards
- IEC 60068-2-14:2023 - Environmental testing, Part 2-14: Test N: Change of temperature
- IEC 60068-2-1:2025 - Test A: Cold
- IEC 60068-2-2:2025 - Test B: Dry heat
- GB/T 2423.22 - Environmental testing for electric and electronic products: Change of temperature
Technical Specifications
| No. |
Item |
Specification |
| 1 |
Interior volume |
225L |
| 2 |
Temperature range |
-40°C to +150°C |
| 3 |
Temperature fluctuation |
±0.5°C |
| 4 |
Temperature uniformity |
±2.0°C |
| 5 |
Linear temperature change rate |
1-5°C/min, adjustable |
| 6 |
Interior material |
SUS304 stainless steel |
| 7 |
Controller |
7-inch color touch screen PLC, 100-step program |
| 8 |
Refrigeration system |
Imported hermetic compressor, R404A |
| 9 |
Observation window |
Double-layer tempered glass with interior light |
| 10 |
Test port |
φ50mm cable port on left side |
| 11 |
Power supply |
380V 50Hz 3-phase |
| 12 |
Data interface |
USB, RS-485, Ethernet |
Core Technology Behind the Equipment
- Linear Ramp Control: PID + fuzzy logic algorithm maintains the set temperature change rate without overshoot.
- Rapid Ramp Refrigeration: Oversized evaporator and expansion valve matched to the compressor for sustained cooling capacity during ramps.
- Thermal Cycling Profiles: Multi-step programming supports soak, ramp, and cycle operations with real-time curve display.
- Environmental Stress Screening: Designed for accelerated reliability testing that reveals latent defects before shipment.
Frequently Asked Questions
What is the difference between a rapid temperature change chamber and a thermal shock chamber?
A thermal shock chamber moves specimens between two separate temperature zones. A rapid temperature change chamber changes the temperature of a single test space at a controlled linear rate, which is closer to many real-world operating conditions.
Can the temperature change rate be adjusted?
Yes. The linear ramp rate is adjustable from 1°C/min to 5°C/min depending on the test profile requirement.
Which standard applies to temperature change testing?
IEC 60068-2-14 Test N and GB/T 2423.22 define the procedures for change-of-temperature testing.
About HongCe
Guangzhou HongCe Equipment Co., Ltd. has been engaged in the development and manufacture of testing equipment and production-line testing systems since 2003. The company focuses on environmental testing, vacuum technology, leak testing, automatic control, and customized production-line solutions, with equipment developed with reference to GB, IEC, EN, UL, VDE, BS, AS and ISO requirements.
For customers purchasing temperature test chambers, HongCe provides equipment + process + integration support, from a single chamber to a complete environmental laboratory solution.
