Project Description

3 Zone Thermal Shock Test Chamber


-Mode: LT-TS3 series

-Volume: 70L ~ 300L

-Thermal shock temperature range:-65℃~+150℃

-Temp constancy:  within ±0.5 deg C

-Temp tolerance: ≤±2.0°C


3 Zone Thermal Shock Test Chamber

Labtek 3 Zone Thermal Shock Test Chamber is used to test the capability of material structure or composite materials to withstand the continuous environmental changes between extremely high temperature and low temperature during a short time, and therefore understand the chemical changes or physical damages caused by expansion from heat and contraction from cold in the shortest possible time.

It is applicable to metals, plastic, rubber, auto parts, chemical materials, electronics and other materials. The test results can be used as a reference or basis for product improvement.


-Mode: LT-TS3 series                                                                     -Volume: 70L ~ 300L

-Thermal shock temperature range:-65℃~+150℃

-Temp constancy:  within ±0.5 deg C

-Temp tolerance: ≤±2.0°C

High temperature zone

-Pre-heat temp range: 60°C to 180°C

-Rate of rise of temp: 60°C to 180°C ≤60 min

  Ambient temperature zone

Low Temperature Zone

-Pre-cool temp range: -75℃~0℃

-Cooling rate:

+20℃ → -75℃≤95 min

-Recovery time: ≤ 5 min


  • Unique design, appearance attraction, compact with space saving.
  • Highly customize chamber available as per exact request.
  • 15 years experience in the field of design, welding, and construction.
  • Most reliable components in the industry to improve whole chamber’s stability.
  • More than 7 days calibration and ageing test before packing.
  • Reliable export packing suitable for multiple shipment method.


  • Designed for ease-of-use
  • Energy-efficient refrigeration design
  • Quality construction
  • Flexible design allows for a full list of options to meet your specific testing needs
  • Includes the largest selection of standard features


  • Programmable touch screen controller
  • Ethernet monitoring & control for optional
  • RS-232, RS-485 serial communications
  • Slide-Out, Adjustable product shelf
  • Two, 4″ (10 cm) circular ports
  • Fog-free viewing window & interior light
  • With a full engineering team on staff, Labtek can customize a variety of options to meet our customers needs at super competitive price.

Refrigeration system

  • Modular design, reliable quality, easy maintenance.
  • Welding rod consists more than 45% of silver.
  • GN2 purge during all soldering operations to eliminate the build-up particles, make sure no any contamination of the refrigeration system.
  • Customize evaporator and condenser. Super thick cooper tubes and aluminum sheet, one special anti-corrosion layer applied, to make sure the long term using stability.
  • 15 years electric system and refrigeration system combined design experience.
  • 15 years welding experience.

Pressure gauges

  • Pressure gauges for refrigeration system are installed.
  • Easily monitor the pressure inside of the refrigeration system.
  • User-friendly during maintenance.

Customize  porthole

  • Different sizes port hole available.
  • Positions of the port holes can be customized as per request.
  • Additional port hole available.
  • With perfect sealing function, no air leakage at ultra low temperature -70°C.
  • Good quality seal plug will be provided.

Time Signal

  • Time signal terminal is installed on the chamber.
  • The power supply for specimen.
  • Power supply on/off time can be set on controller.
  • Useful function for specimen power on at a certain period during tests.

Multiple safety protection device

  • Overheat protection for test area
  • Over pressure protection for compressor
  • Over heat protection for compressor
  • Overheat protection for fan
  • Phase error protection
  • Earth leakage protection
  • Load short circuit protection


Model L-TH
Size 100L,150L,225L,250L,408L,500L,800L,100L
Temperature Ranges Single Stage: -40°C to +180°C
 Cascade: -70°C to +180°C
Humidity Range 20% to 98% RH
10% to 98% RH (optional)
Enclosure Colour coated sheet metal
Internal Stainless steel SUS304
Insulation material Hard urethane foam + glass wool
Heater Nichrome Electronic Heater. Heater control mothed: PID + SSR contactless control
Fan Centrifugal fan
Cooling method Mechanical single stage refrigeration system, Air cooled system (For type 20, type 40).   Cascade refrigeration system, Air cooled system   (For type 70)
Compressor Hermetically sealed compressor
Refrigerant R404A(For type 20, type 40) / R404A/R23(For type 70)
Performance packages are available up to 20HP with a selection of two types of cooling systems to meet a variety of performance specifications.
Refrigeration design protects compressors and prolongs life keeping cool during all operating conditions. Refrigeration design uses less power, saving operating costs.
Pressure gauges allow operating pressures to be continuously monitored.
High volume airflow system includes robust air circulator motors that provide better airflow and improves controllability within the chamber. Better airflow minimizes temperature gradients and accelerates temperature change rates of the device under test.
Water supply method Water pump
Water quality De ionized water or distilled water, resistance>500Ω·m
Auto-feeding Auto-feeding available, feed water quality: Dimineralized water, feeding water pressure: 0.2~ 0.4MPa
Compressor overpressure, overheat, over current, condensation fan overheat
Humidity sytem Dry heating of heating pipe, water short, water drain
Test specimen Adjustable over temperature limit, air conditioning channel over temperature limit
Electric control Blower fan motor overheat, phase error, earch leakage protection, load short circuit protection