Ultra Low Temperature Test Chamber

Model: CDLT Series (CDLT-100L ~ CDLT-1000L)
Temperature Control Mode: Cooling and Heating Temperature Control
Temperature Range：-80°C ~ +130°C (Optional: -90°C ~ -120°C / -200°C)
Volume：100/200/300/400/500/1000L
Power: 380V 50Hz, 3-Phase 5-Wire, Or customized.

Temperature Fluctuation: ≤ ±0.5℃

Temperature Uniformity: ≤ ±2.0℃

Temperature Deviation: ≤ ±2.0℃

Ultra Low Temperature Test Chamber Overview

The CHENDUN CDLT Series Ultra-Low Temperature Deep Cold Test Chamber is developed for advanced cryogenic treatment, stress relief, and cold-resistance reliability testing. By breaking through the traditional mechanical refrigeration limitation of -80°C, it achieves ultra-low cryogenic levels down to -120°C (and customizable up to -200°C ultra-low deep cold treatment), creating a new milestone in environmental testing equipment.

Featuring controllable heating and cooling rates, the chamber can achieve empty-load cooling speeds of up to 40°C/min, far surpassing conventional compressor refrigeration systems. Equipped with state-of-the-art refrigeration, heating, and PID temperature control technologies, the CDLT series guarantees smooth, uniform, safe, and reliable operation across all heating, constant temperature, and deep-cooling phases.

It is widely utilized in high-end sectors such as aviation, aerospace, military defense, scientific research institutes, electronics, and automotive industries for cryogenic processing of metallic and non-metallic materials, enhancing sample durability and performance.

Key Features

Ultra-Low Temp Breakthrough

Breaks the -80°C limit of standard mechanical cooling, offering customizable ultra-low cryogenic cooling down to -120°C / -200°C.

Rapid Cooling Rate

Supports controllable temperature change rates, achieving up to 40°C/min rapid empty-load cooling rate.

Precise PID Control

Adopts a 7.0-inch true color touchscreen controller with high-precision PT100 platinum sensor and resolution of ±0.1°C.

Safety Protection System

Integrated leakage protection, short circuit, over-temperature, motor overload, compressor overpressure, and overcurrent protection.

Cryogenic Treatment

Ideal for deep cold treatment and residual stress elimination of metallic and non-metallic components to optimize material performance.

Applications

Consumer Electronics

Testing components under extreme cryogenic conditions.

Optoelectronics

Evaluating optical devices and precision optical sensors.

Biotechnology & Medical

Ultra-low temp storage and biological material testing.

Academic & Research

Deep cold research in universities and key national labs.

Aerospace Industry

Stress relief and extreme cold testing for flight components.

Semiconductor & Telecom

Reliability evaluation of wafer devices and communication chips.

Technical Specifications

Parameter

Specification

Model Series

CDLT Series Ultra-Low Temperature Deep Cold Test Chamber

Dimensional & Power Models

Model / Capacity	Internal Dim (W×H×D mm)	External Dim (W×H×D mm)	Max Current	Max Power	Weight
CDLT-100L	450 × 450 × 550	910 × 900 × 1545	16A	8 kW	350 kg
CDLT-200L	500 × 600 × 700	960 × 1080 × 1795	18.8A	9 kW	390 kg
CDLT-300L	600 × 700 × 750	1060 × 1175 × 1845	20A	11 kW	450 kg
CDLT-400L	650 × 750 × 850	1110 × 1225 × 1970	21A	12 kW	540 kg
CDLT-500L	700 × 750 × 950	1160 × 1225 × 2070	22A	13.5 kW	560 kg
CDLT-1000L	1000 × 1000 × 1000	1460 × 1475 × 2165	26A	15 kW	650 kg

Performance Parameters

• Temperature Range: -80°C ~ +130°C (Optional: -90°C ~ -120°C / -200°C ultra-low)
• Temperature Fluctuation: ≤ ±0.5°C
• Temperature Uniformity: ≤ ±2.0°C
• Temperature Deviation: ≤ ±2.0°C
• Heating Rate: -80°C → +130°C ≤ 80 min (Empty load)
• Cooling Rate: +20°C → -80°C ≤ 80 min (Empty load; up to 40°C/min max rate)

Chamber Structure & Materials

• Inner Liner: 1.5mm thick stainless steel
• Outer Shell: 1.5mm cold-rolled steel with baking paint
• Insulation Layer: 100mm thick polyurethane (-80°C~0°C) / 150mm thick polyurethane (-80°C~-120°C)

Refrigeration System

• Refrigeration Mode: Mechanical compressor cascade / multi-stage parallel system (Air-cooled / Water-cooled)
• Compressor: Fully hermetic compressor
• Refrigerant: Mixed liquid refrigerant / Liquid Nitrogen dynamic control
• Cooling Method: Air cooling / Water cooling

Control System

• Temperature Resolution: ±0.1°C
• Controller: 7.0" true color touchscreen, Chinese/English input, history curve logging, PID self-tuning, programmable cycle control
• Temperature Sensor: Platinum resistance PT100 armored high-precision sensor

Heating System

Nichrome alloy electric heater, finned heating tube

Standard Accessories

Observation window ×1 set, Sample shelves ×2 pcs, Cable port Ø50mm ×1 pc

Safety Protection

Leakage protection, short circuit protection, over-temperature protection, motor overheating, compressor overpressure, overload, and overcurrent protection

Power Supply

AC 380V 50Hz, 3-Phase 5-Wire System

Compliance Standards

GB/T 2423.1 Test A: Low Temperature Test Method
GB/T 2423.2 Test B: High Temperature Test Method
GB10582-93 Technical Conditions for High and Low Temperature Test Chambers
GJB 150.3 High Temperature Test
GJB 150.4 Low Temperature Test
IEC68-2-30 Test Method

Test Constraints / Prohibitions

• Testing and storage of flammable, explosive, or highly volatile substance samples are strictly prohibited.
• Testing and storage of corrosive substance samples are strictly prohibited.
• Testing or storage of biological samples is strictly prohibited.
• Testing and storage of strong electromagnetic emission source samples are strictly prohibited.

Operating Environment

• Temperature: 5°C ~ 25°C, Humidity: ≤ 85% RH.
• No strong vibration; sufficient ventilation and maintenance clearance around walls/equipment.
• Free of high concentration dust and corrosive substances; equipped with floor drainage near chamber.

After-Sales Service

• 1-Year Warranty & Lifetime Maintenance; customer service profile setup with regular follow-ups.
• Free lifetime technical support. Phone response within 1 hour; field dispatch within 24 hours if needed.
• Free delivery, installation, commissioning, and hands-on operational training for technical personnel.

Advanced Control System

The CHENDUN CDLT Series Low Temperature Test Chamber adopts an intelligent PID temperature controller with high-precision temperature monitoring and automatic regulation.

The system provides accurate temperature control, multiple alarm functions, and parameter adjustment capabilities to ensure stable and reliable testing performance.

Precautions

Install the equipment in a dry and well-ventilated environment.

Avoid corrosive gases and chemical materials around the chamber.

Ensure proper grounding before operation.

Sample total volume should not exceed 2/3 of the working chamber volume.

Verify doorway, elevator, and hallway dimensions before delivery to ensure smooth transit.

Ultra Low Temperature Test Chamber