Temperature Test Chamber with 15 °C/min Temperature Change Rate

When product reliability is on the line, you need a chamber that can replicate extreme environments quickly, precisely, and safely. From simulating arctic blasts to scorching heat, fast and accurate temperature transitions determine whether your test results are valid or misleading.

LIB's –70 ℃ Temperature Test Chamber with 15 °C/min fast temperature change rate is engineered to deliver industry-leading accuracy, safety, and efficiency. Built to comply with IEC 60068, ISO 16750, and IEC 61730 standards, it supports applications ranging from automotive battery abuse testing to semiconductor stress screening.

LIB integrates Nichrome-alloy electric heaters with French Tecumseh refrigeration compressors to achieve rapid heating and cooling. The chamber covers a temperature range from –70 ℃ to +150 ℃, adjustable in 0.1 ℃ increments. Standard ramp rates are 5–10 ℃/min, with fast-change models reaching 15 ℃/min, and customized designs achieving up to 20 ℃/min under no-load conditions. Cooling performance is validated under IEC 60068 protocols, ensuring a smooth transition from +85 ℃ to –60 ℃ at 10 ℃/min.

Temperature stability is tightly controlled, with deviations held within ± 0.5 ℃ and internal variation within ± 2 ℃. Multi-directional centrifugal fans distribute airflow evenly, eliminating hot and cold spots. This uniform circulation ensures that a sensor in the corner experiences the same conditions as a full battery pack in the center.

Real-time monitoring relies on a PT100 Class A sensor with ± 0.001 ℃ resolution, while PID control dynamically adjusts heating and cooling to maintain precise setpoints.

Humidity control ranges from 20 % to 98 % RH, with accuracy held within ± 2.5 % RH. The chamber typically reaches setpoints in under 30 minutes, supporting stable and repeatable results even in combined temperature-humidity cycling.

Explosion-proof safety door and window	Highly sensitive smoke detector

Battery safety testing under high-risk conditions requires built-in explosion protection. LIB's –70 ℃ thermal abuse chamber is designed with multiple safety layers to ensure reliable operation during battery testing.

The inner chamber is constructed from SUS304 stainless steel, providing strong resistance against rupture even under pressure surges caused by thermal runaway. For additional safety, the door and viewing window are reinforced with dual-layer tempered glass, stainless steel mesh, and an explosion-proof lock capable of withstanding impact pressure up to 0.5 bar.

Active monitoring is achieved through dual smoke detectors with a sensitivity of ≤ 0.08 dB/m and multiple temperature probes installed along the chamber's sides and top walls. These sensors provide continuous real-time detection of abnormal events.

When dangerous smoke or heat buildup occurs, automatic exhaust valves activate immediately, delivering ventilation up to 500 m³/h to release harmful gases and reduce internal pressure. To further contain risks, a water-based sprinkler system can cover the entire chamber in less than 3 seconds, effectively suppressing initial flames.

With this comprehensive explosion-proof design, the chamber fully complies with international safety standards for lithium-ion battery testing, giving users confidence in both performance and protection.

1. In Temperature Test Chambers, what is the temperature range for the 10 ℃/min fast-change rate?
In LIB TR equipment, fast temperature change means the chamber can ramp from –60 ℃ to +85 ℃ under no-load conditions at 10 ℃/min.

2. Temperature ramp rates are given, but how long does it take humidity to reach setpoint?
Humidity is controlled efficiently and typically stabilizes within 30 minutes, ensuring smooth test execution.

3. For fast temperature change rates, what is the maximum possible? Can it reach 20 ℃/min?
Standard models achieve 5–10 ℃/min, but LIB can customize designs to reach 20 ℃/min or higher depending on your application needs.

4. Will modifying the standard design or chamber size increase costs?
Yes. Non-standard customization involves additional cost, depending on complexity and material use. LIB provides a transparent quotation for all modifications.

5. In Temperature Test Chambers, what is the temperature range for 10 ℃/min fast change?
In LIB chambers, 10 ℃/min fast change is validated for the –60 ℃ to +85 ℃ range under empty load conditions.

LIB's –70 ℃ Temperature Test Chamber is not just about raw performance. With a 7-inch color touchscreen controller, 120 programmable protocols (100 steps each), Ethernet/USB data logging in CSV format, and alarms for over-temperature, over-current, and door ajar conditions, it guarantees efficiency and safety.

Constructed with SUS304 stainless steel interiors, powder-coated exteriors, and lockable castors with leveling feet, it delivers durability for continuous operation in demanding labs. Routine maintenance like filter changes and water refills takes only minutes, minimizing downtime.

Contact LIB Industry today to explore fast-change chambers, explosion-proof solutions, and custom designs that align with your exact testing standards.