Rubber parts fail outdoors because of a gas that makes up only a tiny fraction of the atmosphere. Ozone cracks rubber seals, hoses, and gaskets even at ambient concentrations, and the damage accelerates under tensile strain. The Ozone Chamber simulates and intensifies those conditions in a controlled enclosure, exposing samples to defined ozone concentrations at controlled temperature and airflow. This Ozone Chamber is built for rubber compounders, automotive parts suppliers, and materials testing laboratories that need ASTM D1149 and ISO 1431 data without waiting months for outdoor weathering results.

Technical Specifications

The Ozone Chamber is supplied as a single model, GT-KB58, with the ozone generation system, temperature control, air circulation, and sample fixtures configured as a complete test station.

GT-KB58 Core Configuration

• Model/Part Number: GT-KB58

• Applicable Standards: ASTM D1149, ISO 1431, GB 7762-2003, GB/T 136421-92, HG/T 2869-97, GJB 1217-91, CNS-10018, JIS D-0205 / K-6301

• Temperature Range: 15°C to 50°C, ±1°C

• Ozone Concentration Settings: 25 ± 5 pphm; 50 ± 5 pphm; 100 ± 4 pphm; 200 ± 4 pphm; 500 ± 10 pphm; 1000 ± 20 pphm

• Internal Dimensions (W×H×D): 50 × 75 × 65 cm

• External Dimensions (W×H×D): 100 × 161 × 117 cm

• Air Ventilation Volume: ≥100 L/min

• Power Supply: 3-phase, 4-wire, 380V ± 10%, 50Hz (R, S, T, N, Earth line)

• Inner Chamber Material: SUS 304 stainless steel

• Insulation: PU foam insulation cotton

• Sample Holder and Clamps: SUS 304 stainless steel, suitable for static, dynamic, and static-dynamic discontinuous cycle tests

• Ozone Generation System: Air compressor + ozone generator + high voltage power supply

• Ozone Detection: UV-100 ultraviolet absorption ozone analyzer (per manufacturer's Chinese-language page)

• Air Circulation System: Multi-wing circulation fan, air flow meter with regulating valve, air filter mixing and dilution device, exhaust emission dilution device

• Chamber Door: Single open, single window (210 × 270 × 35 mm), flat handle, interior light

Standard Accessories Included

• Ozone Chamber main unit

• Dumbbell-shaped cutting die (1 piece)

• SUS 304 stainless steel sample holder and clamps

• UV-100 ozone analyzer

• Air circulation and ventilation system

• Interior lighting

• Observation window

• Operation manual

Items Excluded

• Calibration certificate (available upon request)

• Extended warranty (available for purchase)

• On-site installation and commissioning (available as a service)

• Test specimens (rubber samples prepared by the user)

• Ozone destructor or exhaust treatment beyond the included dilution device (confirm with supplier for local regulations)

Pre-installation Requirements

• Stable, level floor with load-bearing capacity for the chamber (external dimensions 100 × 161 × 117 cm)

• Dedicated 3-phase, 380V ± 10%, 50Hz power supply with earth line

• Adequate clearance around the unit for door access, ventilation, and maintenance

• Compressed air supply for the ozone generation system

• Exhaust ventilation route for the diluted exhaust emission

• Ambient laboratory conditions free from direct sunlight and strong vibration sources

• Operator training on ozone safety procedures is recommended

Key Benefits: Repeatable Ozone Exposure Without Outdoor Weathering Delays

Defined Ozone Concentration Steps for Standard Methods

The Ozone Chamber offers six concentration settings from 25 pphm to 1000 pphm, each with a stated tolerance. Whether your test method calls for a low-concentration exposure or an accelerated high-concentration run, the chamber reaches and holds the setpoint rather than drifting with ambient ozone.

Static and Dynamic Testing in One Chamber

The SUS 304 stainless steel sample holder and clamps accept static, dynamic, and static-dynamic discontinuous cycle tests. You can evaluate how strained rubber behaves under ozone exposure without moving samples to a second fixture or a separate chamber. The holder geometry stays consistent across test modes.

UV Absorption Ozone Measurement

The UV-100 ultraviolet absorption analyzer monitors ozone concentration directly. The generation system adjusts based on the measured value, so the concentration displayed reflects what the samples actually experience. For ASTM D1149 and ISO 1431 records, the measured value is the value that matters.

Stainless Steel Chamber Built for Continuous Exposure

The inner chamber is SUS 304 stainless steel, and the insulation is PU foam. Ozone is a reactive gas, and chamber materials that degrade under exposure introduce their own failure modes. The stainless interior and dedicated exhaust dilution system keep the test environment stable through extended runs.

To explore how this Ozone Chamber fits into your rubber and materials testing workflow, visit our website at Optimum Solution to compare related ozone aging test chambers and environmental simulation equipment . For detailed product specifications and application notes, you can view the GESTER ozone chamber product page on the manufacturer's site. For information on rubber testing standards, refer to the ASTM D1149 standard or the ISO 1431 specification.

Solving the Problems That Slow Rubber Qualification Down

Struggling to reproduce the same ozone concentration across test runs?
The chamber offers six defined concentration settings with stated tolerances, and the UV analyzer measures the actual concentration in the chamber. The generation system adjusts to hold the setpoint, so each run starts from a documented value.

Concerned that static and dynamic tests require different equipment?
The SUS 304 sample holder and clamps support static, dynamic, and discontinuous cycle modes. You change the test mode, not the chamber.

Tired of waiting months for outdoor weathering results?
The chamber intensifies ozone conditions to accelerate cracking. What takes seasons outdoors can be evaluated in a controlled laboratory timeframe, with the concentration and temperature recorded.

Need test data that holds up to ASTM D1149 or ISO 1431 review?
Temperature is controlled at ±1°C, ozone concentration is measured by UV absorption, and airflow is regulated. The test conditions are documented rather than assumed.

Warranty and Support

We provide a 1-year manufacturer's warranty covering parts and labor. Technical support, installation assistance, and operational training are also available. Replacement parts and consumables are available throughout the product's service life.

Call to Action

Request a Quotation or Technical Datasheet: Contact us for more information, customized configurations, and solutions tailored to your specific requirements.