In the oxidation stability testing of lubricating oils, turbine oils, and insulating oils, the Rotating Bomb Oxidation Test (RBOT) is a critical analytical method. The DFYF-117A is strictly designed in accordance with the SH/T0193 standard. Compared to most similar products on the market, it offers significant advantages in automation, mechanical reliability, sealing performance, and long-term stability. The key highlights are as follows:
1. Industrial PLC Control – Far More Stable than Microcontroller Solutions
Many competing products still use consumer-grade microcontrollers or rely on external PCs, which are prone to system crashes, communication interruptions, or data loss during long-term operation. The DFYF-117A adopts an industrial-grade PLC as its core control system, paired with a 7 inch color touch screen. Temperature control accuracy reaches ±0.1°C, and the pressure range is 0–1.6 MPa. The PLC solution ensures stable operation even under continuous, high-temperature, and high-load laboratory conditions, significantly reducing the failure rate.
2. Helical Gear Drive + Spring-Stabilized Structure – Low Noise, Long Service Life
The reliability of the rotating mechanism is a common pain point for rotary bomb testers. Conventional products typically use spur gears, which suffer from severe wear, increased noise, and even compromised rotational speed stability (required: 100±5 r/min) after extended use. Our instrument features a helical gear drive design combined with a spring-stabilized structure, providing smoother gear engagement, significantly longer mechanical life, and much lower operating noise than competing models. For laboratories running multiple tests daily, this translates into lower maintenance costs and less downtime.
3. Imported Quick-Connect Rotary Joint Technology – Eliminates Leakage at High Speeds
Sealing performance of the bomb body at high rotational speeds (100 r/min) directly determines test validity. Many competitors gradually develop leakage at the valve connections after prolonged use, leading to abnormal pressure curves and invalid tests. The DFYF-117A uses imported quick-connect rotary joint technology on the bomb connection valves. It ensures zero leakage even during continuous high-speed rotation, while also facilitating rapid assembly and disassembly, thereby improving operational efficiency.
4. Fully Automated Test Procedure – Minimal Operator Intervention
Conventional and semi-automatic instruments require operators to manually record pressure inflection points and determine test end times. This is not only tedious but also introduces human error. The DFYF-117A achieves one button full automation:
Set 150°C and click “Start Temperature Control” – automatic constant temperature maintenance;
Click “Automatic Oxygen Charging” – the instrument automatically pressurizes to the target pressure in strict accordance with standard procedures;
After charging, automatic leak detection is performed;
Real time pressure time curve display, with automatic identification of the maximum pressure point and inflection point;
When the pressure drop meets the standard termination criteria, the test ends automatically, and the oxidation time, pressure data, and complete curve are stored.
The entire test process requires no continuous operator supervision, and the data is fully traceable – making it especially suitable for laboratories operating under ISO 17025 or other quality management systems.
5. Dual-Bomb Design + Small Coil Winder – Supports Parallel Testing
The DFYF-117A can run two tests simultaneously, allowing easy comparison of repeatability and reproducibility of parallel samples. It is supplied with a small coil winder to facilitate bomb preparation before testing, saving valuable setup time. Compared to single bomb or dual bomb designs without integrated automation, our design better aligns with real world laboratory workflows.
6. Comprehensive Safety Protection
The instrument features over temperature automatic power off: when the temperature exceeds the set point, the system immediately cuts off heating power. In addition, the automatic leak detection function after oxygen charging further ensures the safety of operators and equipment.
Conclusion
The DFYF-117A not only meets the technical requirements of the SH/T0193 standard but also outperforms competitors in its price range in core aspects such as PLC control, drive mechanism, sealing connectors, and full automation. If you are looking for a rotary bomb oxidation tester that offers long term stable operation, reduced human error, and improved testing efficiency, the DFYF-117A is your ideal choice.
Please feel free to contact us for detailed technical data, quotations, or a product demonstration.
