How does LIB cryogenic chamber achieve stable low temperatures

LIB Cryogenic Chamber achieves stable low temperatures in the test area through a combination of advanced insulation, refrigeration, and sealing technologies. Here's how each factor contributes to maintaining precise cryogenic conditions:

1. Insulation Materials: Preventing Heat Exchange

• Polyurethane (PU) Foam: Provides a thermal barrier to maintain internal temperatures.
• Thermal insulation cotton: It is mainly laid in the position of pipelines and lines, and can be taken out and filled at any time, which is more convenient for later maintenance.
• Vacuum Insulation Panels (VIPs): Ultra-low thermal conductivity reduces heat transfer.(Non-standard configuration)

🔹 Effect: Minimizes external temperature influence, ensuring stable cryogenic conditions.

2. Triple-Stack Compressor Refrigeration: Deep Cooling & Stability

Structure chart of LIB cryogenic chamber

Three-stage compressor system with cascading refrigeration cycles (e.g., R-23, R-508B refrigerants).

Each compressor stage progressively lowers the temperature, reducing the thermal load at each step.

Prevents temperature fluctuations by maintaining a continuous cooling process.

Backup redundancy ensures reliability in case of compressor failure.

🔹 Effect: Achieves and maintains ultra-low temperatures (-70 °C to -120 °C) efficiently.

3. Sealing Materials: Preventing Moisture & Air Ingress

Silicone and EPDM Gaskets: Provide flexible, airtight sealing to prevent warm air entry. Silicone seals are installed between the door and the workroom, with a concave and convex design for better tightness.

🔹 Effect: Prevents frost buildup, humidity intrusion, and temperature instability, ensuring consistent test conditions.

 If you are interested in cryogenic chamber, please contact us, we will give you the most professional solution!