In modern engineering and industrial applications, materials and components are often exposed to extreme conditions that challenge their durability, mechanical performance, and reliability. From aerospace structures and high-speed machinery to precision tools and electronic devices, understanding how metals, alloys, and composites behave at ultra-low temperatures is critical for ensuring safety, longevity, and optimal performance. LIB's Cryogenic Chamber offers a controlled, repeatable, and safe environment for simulating these harsh conditions, enabling engineers and researchers to evaluate material properties, reveal failure modes, and optimize designs before deployment in demanding applications.
Cryogenic chamber application of cryogenic technology in nuclear industry and aerospace industry. Among them, the use in aerospace industry is more prominent. Spaceflight parts will greatly enhance their durability and fatigue resistance after super, treatment and hot and cold shock. Thus, the reliability and life of the machine are improved.
Cryogenic Chamber,cryogenic treatment can reduce the residue content, promote the precipitation of fine carbides, reduce the intergranular tensile stress, and improve the properties of materials
Range of application
ultra low temperature chamber use for high speed steel, cemented carbide, workers gauge, blade, mold, saw blades, oil pump, nozzle, micro motor shaft, auto bearing, golf head, roll, cryogenic valves, aluminum alloy, copper alloy, hardware, tools, springs, gears, bearings, diamond, mining, geological drill bits, steel, machinery parts, medicine, biological engineering, aerospace and so on all kinds of cryogenic metal materials It can be used for interference cooling and ultra-low temperature environment simulation of various parts.
Cryogenic Chamber
Temperature Range：-120℃ ~ +150℃
Temperature Fluctuation：± 0.5 ℃
Temperature Deviation：± 2.0 ℃
Cooling Rate：1 ℃ / min
Heating Rate：3 ℃ / min
Mechanical compression refrigeration cooling system
PTR Platinum Resistance PT100Ω/MV A-class temperature Sensor
Simulation environmental chamber equipped with centrifugal wind fan to accelerate gas cycle
The internal material is 304 stainless steel, mirror surface
Working Principle of LIB Cryogenic Chamber
LIB's Cryogenic Chamber achieves ultra-low temperatures down to −120 °C using an advanced cascade mechanical refrigeration system. The multi-stage refrigerant loop, powered by high-efficiency French Taikang mechanical compressors, provides continuous, stable cooling without the need for liquid nitrogen.
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| Name | Cryogenic Chamber (Mechanical Compressor Cooling) |
| Temperature range | −120 °C to +150 °C |
| Cooling method | Cascade mechanical refrigeration (compressor-based, LN₂ not required) |
| Typical temperature stability | ±0.5 °C at setpoint (conditions apply) |
| Typical uniformity | ±1.5 °C across workroom under standard load |
| Typical cool-down rate | 1°C/min from ambient down to −40 °C; overall cool-down to −120 °C typically 90–180 minutes depending on sample load; 3°C/min from ambient up to +150 °C |
| Control & logging | PT100 Class A sensors, PID controller, Ethernet/USB data export, continuous logging (CSV/PDF) |
| Workroom options (examples) | 100-1000L (custom sizes available) |
Key components and features include:
- Mechanical-Compressor Cooling: Eliminates the handling, refilling, and safety concerns associated with liquid nitrogen, while delivering stable and continuous ultra-low temperature control.
- Cascade PID Control: PT100 Class A sensors monitor temperature with high accuracy, while the programmable PID controller maintains ±0.5 °C stability and ±1.5 °C uniformity across the workroom.
- Wide Temperature Range & Thermal Cycling: The system covers −120 °C to +150 °C, enabling extreme thermal-delta cycles for materials, devices, or sensors within a single chamber.
- Predictable Performance: Typical cool-down from ambient to −120 °C occurs within 90–180 minutes, depending on sample load, with programmable cooling/heating profiles for repeatable testing.
- Safety Features: Built-in over-temperature protection, auto-defrost cycles, high-pressure interlocks, fail-safe power cut-offs, and remote alarms ensure safe and reliable operation.
By combining precise mechanical refrigeration, advanced control systems, and rigorous safety features, LIB Cryogenic Chambers provide a controlled environment for ultra-low temperature testing, ensuring reproducible and auditable results for demanding applications.
Advantages of LIB Cryogenic Chamber
Ultra-Low Temperature Qualification
Test polymers, composites, structural metals, and aerospace components at −120 °C to assess brittleness, toughness, and failure modes under extreme conditions.
workroom
Single-System Thermal Range
Covers −120 °C to +150 °C, enabling extreme thermal-delta cycles without switching equipment, saving time and reducing complexity.
No Cryogen Handling Required
Mechanical-compressor cooling eliminates liquid nitrogen, simplifying operation, reducing safety risks, and lowering operational costs.
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Integrated internal system |
Precision & Traceable Data
PT100 Class A sensors and PID control deliver stable, uniform temperatures. Ethernet/USB logging provides audit-ready CSV/PDF records for regulatory compliance and quality assurance.
Flexible Customization
Adjustable sample racks, internal fixtures, and customizable feedthroughs accommodate materials and devices of various shapes, weights, and sizes.
Reliable Global Support
Standard 3-year warranty, lifetime technical support, 24/7 multilingual service, and rapid spare-part distribution worldwide. If remote repair is not possible, LIB provides a replacement unit at no additional cost.
Safety and Usability
Designed with fail-safes, alarms, over-temperature protection, and a multi-language touchscreen interface for intuitive operation.
》》》To receive customized solutions and pricing for the Ozone Test Chamber, please contact us at info@libtestchamber.com.
Procedure for Testing Metal Materials in a Cryogenic Chamber
Step 1: Sample Preparation
Cut or shape metal specimens according to relevant standards (e.g., ASTM E23, ISO 148, GB/T 229).
Measure and record initial dimensions, mass, and surface condition.
Mount samples securely in chamber racks or holders.
Step 2: Chamber Setup
Set the Cryogenic Chamber to the target temperature based on testing requirements:
−60 °C to −80 °C: General low-temperature simulation (cold climate, storage).
−100 °C to −120 °C: Aerospace, aviation, or deep-sea equipment testing.
−196 °C: Ultra-low temperature or superconducting material testing.
Verify sensors, PID controller, data logging, and safety interlocks are functioning properly.
Step 3: Controlled Cooling
Start the cascade mechanical refrigeration system.
Cool samples gradually to the target temperature:
Ambient → −40 °C: ~1 °C/min.
Ambient → −120 °C: typically 90–180 minutes depending on sample load.
Allow samples to stabilize for a sufficient soak period for uniform thermal exposure.
Step 4: Mechanical Testing
Conduct the required tests at the target temperature:
Tensile Test: Measure stress-strain behavior and ductility.
Impact Test: Determine toughness and brittle-ductile transition.
Hardness Test: Optional for low-temperature hardness evaluation.
Record any failures, cracks, or anomalies.
Step 5: Data Collection & Logging
Capture temperature, uniformity, and stability data using chamber sensors and PID control.
Export test data via Ethernet/USB in CSV or PDF format for documentation and traceability.
Step 6: Post-Test Handling
Gradually return samples to ambient temperature to prevent thermal shock.
Inspect and document any surface or structural changes.
Analyze results for compliance with material specifications and application requirements.
For precise, repeatable cryogenic testing with reliable safety and audit-ready data, contact LIB Industry today. Discuss your cryogenic test program, request application-specific cycle examples, or schedule a live demonstration with our technical experts.
