These machines simulate the effects of long-term outdoor exposure in a controlled laboratory environment, enabling manufacturers to predict how products will withstand real-world conditions. This precision engineering is a hallmark of Dexiang, a trusted environmental test chamber manufacturer with expertise in accelerated weathering solutions.
Core Functionalities of UV Accelerated Weathering Test Machines
- Simulation of Solar Radiation
These machines use UV lamps to replicate the full spectrum of sunlight, including UVA and UVB wavelengths. This allows for accurate simulation of the photodegradation effects caused by prolonged sun exposure, such as fading, cracking, and loss of mechanical strength. - Temperature and Humidity Control
Advanced models feature precise control over temperature and humidity levels, enabling users to simulate a wide range of environmental conditions. Typical temperature ranges span from 10°C to 70°C, while humidity levels can be adjusted from 10% to 95% RH. - Cyclic Testing Capabilities
UV Accelerated Weathering Test Machines can alternate between UV exposure and condensation phases to mimic day-night cycles or seasonal changes. This cyclic testing is critical for assessing how materials respond to repeated stress from varying environmental conditions. - Compliance with International Standards
These machines are designed to meet industry standards such as ASTM G154, ISO 4892, and SAE J2020. Compliance ensures that test results are reliable and globally recognized, which is essential for industries requiring certification and quality assurance. - Real-Time Monitoring and Data Logging
Integrated sensors and software allow for real-time monitoring of test parameters, including UV intensity, temperature, and humidity. Data logging capabilities enable users to generate detailed reports for analysis and compliance documentation. - Durable Construction and Low Maintenance
High-quality machines are built with corrosion-resistant materials such as stainless steel and feature easy-to-clean interiors. This ensures long-term durability and minimizes downtime for maintenance.
Accelerated Weather UV test machine Product parameters:
| Item | Specification |
| Outside dimension | 1300W×500D×1460Hmm |
| Chamber material | SUS#304 stainless steel |
| Temperature range | RT～70℃ |
| Temperature fluctuation | ±2℃ |
| Temperature control | PID SSR control |
| Humidity range: | ≥95%RH |
| Controller | Programmable controller, LCD touch screen |
| Control mode | Balance temperature humidity control (BTHC) |
| Test cycle setting | Exposure, condensation and water spray test cycle is programmable |
| Lamp power | 40W/Piece |
| Distance from sample to lamp | 50±2mm |
| Centre distance between the lamp | 70mm |
| Irradiance | 0.45~0.8W/m2 (optional) |
| UV lamps | Imported Atlas UV-A: 315-400nm (8pcs, 1600h lifetime) |
| Standard Specimen Size | 75×290mm (24pcs) or 75x150mm (48pcs), max. thickness 5mm |
| Testing time | 0～999H, adjustable |
| Protection system | Overload short circuit protection Over temperature protection Water lacking protection Earth leakage protection Auto shut off protection |
FAQ: UV Accelerated Weathering Test Machine
Q1: What industries use UV Accelerated Weathering Testers?
A: Key industries include:
- Automotive: Testing paint, rubber seals, and interior materials.
- Coatings & Plastics: Evaluating UV resistance of exterior coatings and polymer durability.
- Textiles: Assessing color fading in outdoor fabrics (awnings, outdoor furniture).
- Electronics: Validating LCD screens and solar panel components under prolonged UV exposure.
Q2: Which testing standards does your machine comply with?
A: Our chambers meet ASTM G154 (non-metallic materials), ISO 4892-3 (plastics), SAE J2527 (automotive coatings), and IEC 61215 (solar panels). Custom protocols can be programmed.
Q3: What UV wavelengths are simulated?
A: Standard models use UVA-340 lamps (315–400 nm) to mimic sunlight at 295–365 nm. Optional UVB-313 lamps provide accelerated degradation for harsh environment testing.
Q4: How accurate is the temperature and humidity control?**
A: Our systems maintain:
- Temperature: 40°C to 80°C (±1°C).
- Humidity: 10% to 95% RH (±3% RH).
- Irradiance: 0.35–1.50 W/m²/nm (±5%), adjustable via calibrated radiometers.
Q5: Can the machine combine UV exposure with other environmental factors?
A: Yes. Advanced models integrate condensation cycles (simulating dew) and spray functions (per IPX4 standards) for multi-factor weathering tests.
Q6: How often should lamps be replaced?
A: UVA-340 lamps typically last 1,500–2,000 hours. Built-in irradiance sensors alert users when output drops below 80% of initial value.
Q7: What safety features are included?
A: Safeguards include:
- Over-temperature auto-shutdown.
- Leak-proof water circulation system.
- UV-shielded viewing windows (protecting operators from radiation).
Q8: How long does a typical UV weathering test take?
A: Test duration depends on material and standards:
- Basic exposure: 500–1,000 hours (ISO 4892).
- Accelerated cycles: 2–4 weeks (simulating 1–2 years of outdoor exposure).
Q9: Can I test large or irregularly shaped samples?
A: Chamber sizes range from 100L (desktop) to 1,500L (walk-in). Custom sample racks are available for automotive parts or construction materials.
Q10: What technical support do you provide?
A: We offer:
- Free remote calibration guidance via video call.
- Lifetime spare parts supply (lamps, sensors, filters).
- On-site training for ASTM/ISO compliance.
