In the fields of high-end equipment manufacturing and key material research and development, fatigue fracture is one of the primary hidden dangers leading to structural failure. Accurately obtaining the fatigue limit and S-N curve of materials under alternating bending stress is the cornerstone of ensuring product reliability. In response to market demands, Shenzhen Sansi Testing Technology Co., Ltd. has launched the EXW104ZX cantilever rotary bending fatigue testing machine, which has been successfully applied in high-end aerospace equipment manufacturing enterprises. Complying with multiple domestic and international test standards, the equipment integrates high-precision measurement and control, wide speed range and multiple safety protections, providing a reliable test platform for the fatigue performance evaluation of metal materials.

I. Equipment Positioning and Application Scope

This testing machine is specially designed for cantilever pure bending fatigue tests of metals and their alloys at room and high temperatures. It can measure the fatigue life and strength of circular cross-section specimens under constant bending moment during high-speed rotation. Widely applicable to scientific research institutions, iron and steel metallurgy, aerospace, automobile manufacturing, rail transit, energy and power industries, it meets multi-scenario demands including new material research and development, process optimization and incoming quality inspection.

II. Full Coverage of Core Test Standards

The cantilever rotary bending fatigue testing machine of Shenzhen Sansi strictly complies with the following national and industrial standards in design, manufacturing and calibration to ensure the conformity and mutual recognition of test results:

JJG 652 Verification Regulation for Rotary Bending Fatigue Testing Machines — Serves as the metrological verification basis to guarantee equipment traceability of measurement values;

HB 515 (High Temperature/Room Temperature) Test Method for Rotary Bending Fatigue of Metals — Meets the material evaluation requirements of the aviation industry;

GB/T 4337 Metallic Materials - Fatigue Testing - Rotary Bar Bending Method — Basic general standard that standardizes the whole test process;

GB/T 2107 Test Method for High-Temperature Rotary Bending Fatigue of Metals — Covers performance testing under high-temperature working conditions;

GB 7733 Test Method for Rotary Bending Corrosion Fatigue of Metals — Expands the capability of fatigue research in corrosive environments.

The full coverage of the above standards enables the equipment to conduct not only conventional mechanical property tests, but also material failure analysis under special working conditions such as high temperature and corrosive media, providing users with multi-dimensional evaluation methods.

III. Core Technical Parameters and Practical Performance

All performance parameters of the equipment are set based on actual engineering requirements and strictly verified to ensure accurate and reliable data:

Drive and Speed System: Adopts a high-speed frequency-modulated motor drive, matched with a precision spindle unit and circulating water cooling system, which effectively suppresses the influence of temperature rise on spindle accuracy. The speed range covers 1000 r/min to 10000 r/min, meeting the wide-range demands from low-cycle to high-cycle fatigue tests. The speed stability is better than ±0.5%, ensuring uniform stress cycle frequency.

Loading Mechanism: Equipped with an adjustable loading arm and combined weights for precise force application, with a wide force value range adaptable to circular specimens of different diameters and materials. Users can flexibly adjust the bending moment loading position according to specimen sizes to ensure accurate stress calculation.

Measurement and Control System: Equipped with brand measurement and control modules and a touch screen human-computer interaction interface for intuitive and convenient operation. Core parameters such as rotating speed, cycle times and test time can be displayed in real time during the test. The built-in data acquisition and processing program can automatically generate, print and edit test reports after the test, facilitating data archiving and secondary analysis.

Configuration: The EXW104ZX cantilever rotary bending fatigue testing machine is equipped with high-precision high-speed elastic clamps for specimen holding, featuring good alignment and convenient specimen loading and unloading. It can be fitted with a high-temperature test furnace to realize bending fatigue performance tests under high-speed and high-temperature rotating conditions.

Safety Protection System: The whole machine is equipped with an organic glass protective cover, which isolates high-speed rotating components while allowing clear observation of the test process. It integrates multiple safety interlock functions including power-off protection, over-current protection, over-temperature early warning and automatic shutdown upon specimen fracture. It supports reliable unattended operation and effectively protects equipment and operator safety.

IV. Shenzhen Sansi Testing: Technology-Oriented, Service-Empowered

Shenzhen Sansi Testing Technology Co., Ltd. has been deeply engaged in the field of mechanical property testing equipment for many years, integrating R&D, manufacturing, sales and service. We are fully aware that a reliable fatigue testing machine is not only mechanical equipment, but also a guardian of quality and safety. Therefore, we adopt mature core components, standardized assembly processes and strict factory calibration to ensure every piece of equipment can stand the test of standards and time.

We provide full-cycle services including equipment selection, installation and commissioning, training and maintenance, committed to creating an efficient and worry-free test experience for users. For more product details or exclusive test solutions, please leave a message via the online contact form or contact us directly.