- +86-15622955621
- Sales@gaat-equipment.com
UV Chamber Manufacturer in China
Environmental simulation and reliability test equipment factory with 19 years experience.
The UV chamber adopts high-precision fluorescent ultraviolet lamps to simulate the UV spectrum of sunlight. Combined with temperature control, humidity supply, and other mechanisms, it effectively reproduces various climatic conditions such as sunlight (UV spectrum), high temperature, high humidity, condensation, and dark cycles.
Applicable UV Chamber Testing Standards
Application: The UV chamber precisely controls internal temperature and humidity, creating periodic condensation on samples. This process comprehensively evaluates the damaging effects of sunlight, moisture, and temperature, including material aging phenomena such as fading, loss of gloss, strength degradation, cracking, peeling, chalking, and oxidation.
- ISO 16474-1
Paints and varnishes – Methods of exposure to laboratory light sources – Part 1: General guidance - ISO 16474-3
Paints and varnishes – Methods of exposure to laboratory light sources – Part 3: Fluorescent UV lamps - ISO 11507
Paints and varnishes – Exposure of coatings to artificial weathering – Exposure to fluorescent UV lamps and water - ISO 4892-1
Plastics – Methods of exposure to laboratory light sources – Part 1: General guidance - ISO 4892-3
Plastics – Methods of exposure to laboratory light sources – Part 3: Fluorescent UV lamps - ISO 29664
Plastics – Artificial weathering including acidic deposition
- ASTM D4587
Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings - ASTM D4329
Standard Practice for Fluorescent UV Exposure of Plastic - ASTM G151
Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources - ASTM G154
Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Non-Metallic Materials - ASTM D4799
Standard Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Fluorescent UV, Water Spray, and Condensation Method) - ASTM C1257
Standard Test Method for Accelerated Weathering of Solvent-Release-Type Sealants - ASTM C1442
Practice for Conducting Tests on Sealants Using Artificial Weathering Apparatus - ASTM C1501
Standard Test Method for Color Stability of Building Construction Sealants as Determined by Laboratory Accelerated Weathering Procedures - ASTM C1519
Standard Test Method for Evaluating Durability of Building Construction Sealants by Laboratory Accelerated Weathering Procedures - ASTM C732
Standard Test Method for Aging Effects of Artificial Weathering on Latex Sealants
- BS 2782: Part 5, Method 540B
Methods of Exposure to Laboratory Light Sources - EN 927-6
Paints and varnishes – Coating materials and systems for exterior wood – Part 6: Exposure of wood coatings to artificial weathering using fluorescent UV lamps and water
- JIS D0205
Test Method of Weatherability for Automotive Parts - JIS K5600-7-8:1999
Testing Methods for Paints – Long-period Performance of Film – Section 8: Accelerated Weathering (Exposure to Fluorescent UV Lamps)
Techincal Parameters
Safety Features
Options
Techincal Parameters
Model | SZ-UV-1C | SZ-UV-430C |
Inner Size WxHxD (mm) | W75xH150 | 450x1100x500 |
Exterior Size WxHxD (mm) | 1600x1512x800 | 1300x1480x550 |
Sample Capacity | 48 pieces of standard specimen (70mm x150mm standard samples) | |
Radiation Temperature Range | RT+10℃~70℃ | |
Condensation Temperature Range | RT~60℃ | |
Humidity Range | Condensation cycle≥85%RH; Radiation cycle <75%RH | |
Test Light Source | UV-A or UV-B | |
Test Light Source Specs | UV-A: wavelength range 300~400nm, wave peak value 340nm, UV-B: wavelength range 275~375nm, wave peak value 313nm; Lamp service life 1600h | |
Radiation intensity | 0.3~1.1W/m2 (313nm); 0.3~1.2W/m2 (340nm); | |
Water spray pressure | 30 ~ 200Kpa | |
Spray nozzle specs | Nozzle diameter 0.8mm, spray angle 60°，spray volume adjustable | |
Heating Humidifier | Electric heating type steam generates heat and humidify. | |
Control System | Operation Interface: Digital intelligent type soft touch key input (programmable control) Running Method: Programmable control/ constant running Setting Range: As temperature range Input: Blackboard temperature meter, PT-100 sensor Subsidiary Function: Upper-lower limit alarm, alarm display, timer function | |
Safety Features
Test Chamber | Over-temperature protection, Water shortage protection |
Pressure Pump | Water shortage protection, Excessive water pressure protection |
Heating System | Heating element dry burn, Water supply abnormality, Drainage abnormality |
Power Supply | Leakage protection, Overload and short circuit protection |
Light and Fan | Fan overload, Fan short circuit, Fan reverse rotation protection |
Options
UV-A: wavelength range 300~400nm, wave peak value 340nm,
UV-B: wavelength range 275~375nm, wave peak value 313nm;
UV-A lamps are mainly used to simulate the ultraviolet part of outdoor sunlight. If no instructions are given when placing an order, UV-A lamps will be installed by default.
Key Advantages
Original UV Lamps
Our machines feature stable UV lamps from American Atlas, offering consistent results and reduced maintenance costs. Crafted with over 40 years of expertise, these lamps ensure reliable performance.
Photoelectric conversion irradiance meter
It monitors the irradiance intensity of the lamp tube, measurement wavelength range: 300～400nm, peak value: 340nm/313nm.
Water Spray Function
Our water spray system accurately mimics heat shock and mechanical erosion caused by sudden temperature changes or rain. With 8 strategically placed nozzles, it quickly cools samples to create realistic heat shock conditions, making it ideal for testing materials exposed to abrupt weather shifts.
Condensation Function
The condensation system replicates outdoor moisture damage, primarily from dew. By heating water to produce superheated steam, it maintains 100% humidity, simulating the natural process of dew formation. This exposes samples to a temperature gradient, causing condensation and testing their resistance to moisture-related stress.
FAQ About UV Chamber
What Is a UV Aging Test Chamber?
A UV aging test chamber, also known as a UV weathering test chamber, simulates the effects of ultraviolet sunlight, temperature, and humidity to test a material’s durability and aging performance.
What Are the Applications of UV Aging Test Chambers?
UV aging test chambers are widely used in industries such as coatings, plastics, rubber, textiles, automotive, and electronics to evaluate the weather resistance of materials.
What Testing Standards Are Used for UV Aging Test Chambers?
Common standards include:
- ASTM G154 (Standard Practice for UV Aging)
- ISO 4892-3 (Methods for Exposure to UV Light)
- GB/T 16422.3 (China National Standard)
How Does a UV Aging Test Chamber Work?
The chamber uses UV lamps to replicate sunlight’s ultraviolet spectrum. Combined with temperature and humidity controls, it accelerates material aging to predict how they perform in outdoor environments.
How Long Does a UV Aging Test Take?
The duration depends on the testing standards and requirements, ranging from hundreds to thousands of hours. These accelerated tests can simulate months or years of outdoor exposure.
What Types of UV Lamps Are Used in UV Test Chambers?
The most common lamp types are:
- UVA Lamps: Simulate long-wave UV radiation (315-400nm) for general testing.
- UVB Lamps: Emit shorter wavelengths (280-315nm) to accelerate material degradation.
Can UV Test Chambers Simulate Wet or Rain Conditions?
Yes, UV chambers are equipped with water spray and condensation systems to replicate rain, dew, or high humidity environments.
How to Maintain a UV Aging Test Chamber?
- Replace UV lamps regularly.
- Check and clean the water spray system.
- Regularly calibrate the equipment for accurate testing results.
Are UV Aging Tests a Substitute for Outdoor Exposure Testing?
While UV tests provide accelerated results, they are not a perfect substitute for long-term outdoor exposure tests. Both methods complement each other.
How to Choose the Right UV Aging Test Chamber?
Consider the following factors:
- Compliance with specific testing standards
- Type of UV lamps (UVA or UVB)
- Chamber size and sample capacity
- Additional functions (e.g., humidity control, water spray system)
Why Is UV Testing Important for Material Durability?
UV testing helps manufacturers understand how products withstand environmental conditions like sunlight, heat, and moisture, ensuring quality and longevity.
What Is the Difference Between UVA and UVB Lamps?
- UVA Lamps: Ideal for long-term testing with a focus on surface damage.
- UVB Lamps: Best for faster results by inducing harsher degradation, often used for research purposes.
About GAAT
Dongguan Saizhun Technology Equipment Co., Ltd with our own trademark GAAT (stands for Guangdong Accelerated Ageing Technology), is a major holding subsidiary of Zhongzhi Testing Instruments Group – China’s top 3 largest manufacturer of environmental and reliability testing instruments.
With 19 years of history, GAAT has been specialized in drying ovens, thermal shock chambers, temperature and humidity climatic chambers, HAST chambers etc. Our equipment is widely used in thermal processing for industrial manufacturing as well as in the environmental & reliability testing fields.
Our products mainly cater for semiconductor, electronics, automobile and aerospace sectors. We aim to be your professional and reliable partner in thermal processing and environmental testing area!
Contact Us
Please feel free to contact us for more product details via
Email: sales@gaat-equipment.com or
Tel: +86-15622955621.