Ozone aging test chambers are engineered to assess how well rubber and other elastomeric materials hold up when exposed to ozone-rich atmospheres over time. By recreating concentrated ozone conditions inside a controlled enclosure, these systems compress what would normally be years of environmental exposure into a much shorter testing window—allowing engineers to observe surface cracking, material breakdown, and overall degradation patterns that indicate how a product will perform throughout its service life.
Each chamber brings together several coordinated subsystems: specimen mounts for both static and dynamic (stretched) samples, a refrigeration unit to maintain temperature stability, a humidity regulation system, forced-air circulation, an ozone generation source, an exhaust/ozone-destruction unit, and a smart control interface that ties everything together for consistent, repeatable results.
LIB's equipment lineup is built to meet recognized international testing protocols, including ASTM D1149, ASTM D518, ASTM D470, ISO 1431-1, and ISO 1431. Thanks to configurable chamber designs and support for tailored test protocols, LIB equipment gives manufacturers of rubber goods, elastomers, and other ozone-vulnerable materials a dependable way to confirm how their products will hold up under real-world environmental stress.
OC-250/OC-500/OC-800/OC-010
LIB Industry
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Every chamber in the ozone testing lineup comes standard with a programmable controller and network connectivity, making it easy to operate the equipment, log test data, and check on runs remotely. The lineup spans a range of chamber footprints, and configurations can be adapted to suit the testing needs of different sectors. Because sizes and setups vary so widely, these chambers can accommodate different specimen dimensions, comply with a range of test standards, and fit application-specific requirements. Whether the goal is product development, incoming quality checks, or long-term durability studies, the chambers deliver a consistent, well-regulated testing environment for gauging how rubber, elastomers, gaskets, cable jacketing, and other polymer-based materials hold up against ozone exposure.
Key Benefits of the Ozone Test Chamber
1. Precise Replication of Ozone Aging Conditions: The chamber lets operators dial in ozone concentration anywhere from 1 to 1000 PPHM, temperature from 0 to 100°C, and relative humidity between 30% and 98%. This level of control supports close examination of how rubber and elastomer samples respond to ozone—surfacing cracking behavior, aging trends, and indicators of long-term durability.
2. Adaptable Fixtures for Static and Dynamic Testing: Built-in mounts accommodate both stationary and moving specimens, so testing can mirror actual in-service conditions. Elongation settings range from 5% to 80%, paired with rotational speeds from 0 to 10 r/min—useful for putting seals, rubber parts, cables, and similar elastomeric products through mechanically representative stress.
3. Rugged, Long-Lasting Construction: The interior test chamber is built from SUS304 stainless steel chosen specifically for its resistance to ozone-related corrosion, giving the unit a long operational lifespan. A dependable air circulation and thermal regulation system keeps conditions even throughout the chamber, supporting stable results even during extended test cycles.
4. Intelligent Controls and Data Handling: A PID-based touchscreen controller manages ozone level, temperature, and humidity with high precision. Built-in Ethernet connectivity, automated data logging, and smart monitoring tools streamline the testing process and support consistent, reproducible outcomes.
5. Operator Safety and Environmental Compliance: A built-in ozone breakdown and venting system clears residual ozone once testing wraps up, safeguarding both personnel and the surrounding workspace. Thoughtful airflow engineering also helps keep noise levels and power consumption in check without sacrificing test accuracy.
Technical Parameters of the Ozone Test Chamber
| Model | OC-250 | OC-500 | OC-800 | OC-010 |
| Internal Dimension (mm) | 600*600*700 | 700*800*900 | 800*1000*1000 | 1000*1000*1000 |
| Overall Dimension (mm) | 960*1150*1860 | 1200*1340*2020 | 1300*1540*2120 | 1500*1540*2140 |
| Interior Volume (L) | 250 | 500 | 800 | 1000 |
| Temperature Range | 0℃ ～ +100 ℃ | |||
| Temperature Fluctuation | ± 0.5 ℃ | |||
| Temperature Deviation | ± 2.0 ℃ | |||
| Humidity Range | 30% ~ 98% RH | |||
| Humidity Deviation | ± 2.5% RH | |||
| Cooling Rate | Ambient ~ 0℃ within 20 min | |||
| Ozone Concentration | 1～1000PPHM | |||
| Sample Holder Rotate Speed | 0~10 r/min | |||
| Airflow Rate | 0 ~ 60L/min | |||
| Clamps Tensile Stretch | 5%～35% | |||
| Cooling system | Mechanical compression refrigeration system | |||
| Refrigerating unit | French TECUMSEH compressor | |||
| Heating Element | Nichrome heater | |||
| Controller | Programmable color LCD touch screen controller | |||
| Ethernet connection, PC Link | ||||
| Water supply system | Automatic water supply,Water purification system | |||
| Humidifier | External isolation, stainless steel surface evaporation humidifier | |||
| Temperature Sensor | PTR Platinum Resistance PT100Ω/MV A-class | |||
| Gas Sensor | Ozone gas sensor | |||
| Ozone Generator | Silent discharge type ozone generator | |||
| Air Circulation | Centrifugal wind fan | |||
| Sample Holder | Static + dynamic combined sample holder | |||
| Exterior Material | Steel Plate with protective coating | |||
| Interior Material | SUS304 stainless steel | |||
| Thermal Insulation | Polyurethane foam and insulation cotton | |||
| Observation Window | Interior lighting, double-layer thermo stability silicone rubber sealing | |||
Operate Guide of the Ozone Test Chamber
Prior to running an ozone resistance test, confirm the unit is properly wired to a power source and that all safety interlocks are functioning correctly. Mount the test specimens onto either the static or dynamic fixtures depending on the specific test protocol, then shut and latch the chamber door to ensure a proper seal. Using the PID touchscreen interface, input the target values for ozone concentration, temperature, and relative humidity, then configure the run time along with any required stretching or rotational cycling parameters for dynamic specimens. While the test is in progress, keep track of the operating conditions either directly on the control panel display or remotely through an Ethernet connection to a PC. Once testing concludes, let the exhaust system fully clear residual ozone from the chamber interior before opening the door, then retrieve the specimens carefully for subsequent evaluation. To keep the equipment performing reliably over time, periodic upkeep of the filtration components, sensor elements, and ozone generation module is advised.
Video of the Ozone Test Chamber
FAQs on the Ozone Test Chamber
Q1: What is the maximum stretching capacity of the sample rack in the ozone test chamber?
A1: The sample rack can stretch rubber or similar specimens from 5% to 50%, adjustable according to testing requirements. Both static and dynamic configurations are available to meet different aging test needs.
Q2: What is the stretching speed of the sample shelves?
A2: The stretching speed is adjustable between 1 cm/min and 10 cm/min. Standard ozone tests usually use slower speeds to ensure stable conditions and accurate results.
Q3: How is ozone fully removed before being released into the air?
A3: Ozone is neutralized using activated carbon adsorption. Proper carbon volume and weight are pre-calculated (e.g., 2.5 kg per 1000 L of gas), and annual replacement is recommended to maintain effective purification.
Q4: What is the purpose of the ozone exhaust and purge system?
A4: Once a test is finished, the chamber still contains leftover ozone gas that isn't safe to release directly into the room. The exhaust and purge system pulls this gas out and breaks it down before it exits the chamber, so operators can open the door safely without breathing in harmful ozone.
