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Negative Temperature Air Conditioning Chamber

Name: Negative Temperature Air Conditioning Chamber
Brand: Xi'an LIB Environmental Simulation Industry

Engineered Sub-Zero Air Conditioning Control for Reliable Cold Environment Testing

The Negative Temperature Air Conditioning Chamber is an advanced low-temperature environmental test system designed to reproduce controlled sub-zero air-conditioning conditions with laboratory-level precision. Functionally rooted in a temperature test chamber, it goes further by emphasizing air circulation, long-duration negative temperature holding, and realistic thermal conditioning behavior rather than simple cooling output.

Capable of operating from +150 °C down to –70 °C, the system provides consistent temperature stability, uniform airflow, and programmable thermal sequences for cold storage evaluation, cold start validation, component conditioning, and reliability screening.
Built on industrial refrigeration architecture and compliant with IEC 60068, ISO 16750, and MIL-STD-810, the chamber ensures repeatable, defensible test results across R&D, validation, and production stages.

Various Models Available : TH-100A, TH-225A, TH-800A, TH-1000A and more customized models.

LIB Industry Negative Temperature Air Conditioning Chamber Video

Performance Advantages of Negative Temperature Air Conditioning Chamber

1. True Negative Temperature Conditioning

Temperature range: –70 °C to +150 °C (configurable)

Stability: ±0.5 °C, uniformity: ≤ ±2.0 °C

Optimized for steady-state sub-zero holding and conditioning accuracy, ensuring thermal equilibrium across long test durations rather than transient cooling performance

2. Air-Conditioning-Oriented Airflow Engineering

High-efficiency centrifugal circulation system with variable airflow control

Engineered air duct geometry for full-volume coverage

Ensures consistent cold-air distribution, reducing specimen-to-specimen temperature deviation in multi-sample testing

3. Intelligent Temperature Control & Data Integrity

Advanced PID control with adaptive self-tuning

Programmable multi-step temperature profiles and cyclic logic

Continuous data logging ensures traceable, repeatable, and audit-ready test results aligned with IEC and ISO test protocols

4. Operational Reliability & Service Life

Designed for 24/7 laboratory and production environments

Key components validated under extended low-temperature endurance testing

Modular design simplifies maintenance and minimizes downtime over the equipment lifecycle

Negative Temperature Air Conditioning Chamber Specifications

Model	T-100	T-225	T-500	T-1000
Internal Dimension (mm)	400500500	500600750	700800900	100010001000
Overall Dimension (mm)	90010501620	100011401870	120013402020	150015402140
Interior Volume	100L	225L	500L	1000L
Heat load	1000W
Temperature Range	A : -20℃ ～ +150 ℃ B : -40℃ ～ +150 ℃ C: -70℃ ～ +150 ℃
Temperature Fluctuation	± 0.5 ℃
Temperature Deviation	± 2.0 ℃
Cooling Rate	1 ℃ / min
Heating Rate	3 ℃ / min
Cooling system	Mechanical compression refrigeration system.Environmentally friendly refrigerant,compliant with the GWP standards requirements
Refrigerating unit	French TECUMSEH compressor
Heating Element	Nichrome heater
Controller	Programmable color LCD touch screen controller, Ethernet connection
Water supply system	Automatic water supply, Water purification system
Safety Device	Over-temperature protection; Over-current protection; Refrigerant high-pressure protection; Earth leakage protection

Structural & Functional Details of Negative Temperature Air Conditioning Chamber

Reinforced Test Workspace	Interior material: SUS304 stainless steel Standard volumes: 100 L \| 225 L \| 500 L \| 800 L \| 1000 L Load-bearing specimen 2 layer shelves for heavy or dense samples Large-area heated observation window, effectively preventing frosting and condensation during deep negative temperature testing
Precision Control Platform	Programmable touch controller with PID self-tuning Multi-step temperature profiles and cyclic programs（120 programs 99+ steps） USB / Ethernet communication for data export and system integration PC/mobile connections for remote control
Thermal Insulation & Sealing System	High-density 100 mm polyurethane insulation structure Low-temperature-resistant silicone sealing, Effectively suppresses cold loss and frost formation Embossed and recessed inner chamber design, reducing internal thermal radiation reflection
Refrigeration System & Temperature Sensing	Cascade refrigeration system supports stable operation down to –70 °C, designed for long-duration negative temperature conditioning,responsive cooling and steady temperature holding PT100 platinum resistance temperature sensors (Class A, IEC 60751) monitor real-time temperature High-resolution signal processing enables control resolution up to 0.001 °C

Built Around Your Test Method, Not a Fixed Model

LIB industry treats negative temperature chambers as engineering projects, not fixed models.

Custom options include:

Non-standard chamber dimensions and door structures
Enhanced cooling rate or ultra-low temperature holding optimization
Multiple cable ports, access holes, or viewing windows
Special airflow direction for application-specific conditioning
Remote monitoring, MES integration, and data management solutions

Discover More About Negative Temperature Air Conditioning Chamber

Q1: Can it maintain –70 °C for extended periods?

Yes. The refrigeration system and insulation structure are specifically designed for long-duration deep cold operation, not intermittent testing.

Q2: What other environmental test systems does LIB industry provide?

LIB industry offers a full environmental test portfolio including temperature humidity chambers, thermal shock chambers, xenon and UV aging systems, sand and dust chambers, and IP waterproof test equipment, enabling complete lab construction.

Q3: How flexible is LIB industry in customization?

From mechanical structure to control logic and performance tuning, LIB industry customizes around your test method, standards, and workflow.

Ready for Reliable Sub-Zero Testing?

If your testing requires stable, repeatable, and application-oriented negative temperature air conditioning, choose a system engineered beyond standard cooling logic.

LIB industry delivers custom-built solutions, fast technical response, and lifecycle-level support.

3-Year Warranty | Engineered-to-Order | Lifetime Technical Support
Contact LIB industry now inquiry@libtestchamber.com to receive a quotation and tailored test proposal within 1–3 hours.

LIB Team will send you specs and quote today.