What is a spring fatigue life testing machine?
In the fields of industrial manufacturing and materials science, spring fatigue life testing machines are important testing equipment used to evaluate the durability performance of springs during repeated loading and unloading processes. With the continuous improvement of product quality requirements in the manufacturing industry, the application of spring fatigue life testing machines is becoming more and more widespread. This article will introduce in detail the definition, working principle, application fields and comparison of popular models in the market of spring fatigue life testing machines.
1. Definition of spring fatigue life testing machine

The spring fatigue life testing machine is an instrument specially used to test the fatigue life and performance of springs under cyclic loading. By simulating the repeated stress of the spring in actual use, the testing machine can record key data such as the number of fatigue fractures and deformation of the spring to evaluate its reliability and service life.
2. Working principle of spring fatigue life testing machine
The working principle of the spring fatigue life testing machine mainly includes the following steps:
1.Load device: Cyclic loading is applied to the spring through a motor or hydraulic system.
2.Data collection: Real-time monitoring of spring displacement, load and cycle times through sensors.
3.data analysis:Transmit the collected data to the computer system for fatigue life analysis and curve drawing.
3. Application fields of spring fatigue life testing machine
Spring fatigue life testing machines are widely used in the following fields:
1.automobile manufacturing: Test the durability of automobile suspension springs, clutch springs, etc.
2.Aerospace: Evaluate the performance of aircraft landing gear springs and high-precision instrument springs.
3.electronic equipment: Testing micro springs used in mobile phones, computers and other equipment.
4.medical device: Verify the reliability of springs in surgical instruments and implantable devices.
4. Comparison of popular spring fatigue life testing machine models in the market
| Model | Maximum load | frequency range | Applicable spring type | price range |
|---|---|---|---|---|
| TF-2000 | 2000N | 0.1-10Hz | compression spring | 50,000-80,000 yuan |
| MTF-500 | 500N | 0.1-5Hz | Tension spring | 30,000-50,000 yuan |
| AF-1000 | 1000N | 0.1-15Hz | torsion spring | 60,000-100,000 yuan |
5. Future development trends of spring fatigue life testing machines
With the rapid development of intelligent manufacturing and Internet of Things technology, spring fatigue life testing machines are developing in the direction of intelligence and automation. Future testing machines may have the following features:
1.Intelligent data analysis: Automatically identify the fatigue breaking point of the spring through AI algorithm.
2.remote monitoring: Support cloud data storage and remote operation.
3.Multifunctional integration: One device can test multiple types of springs.
6. How to choose a suitable spring fatigue life testing machine
When selecting a spring fatigue life testing machine, the following factors need to be considered:
1.Testing requirements:Select the appropriate model according to the type and load range of the spring.
2.budget: The prices of different models vary greatly, so you need to choose based on your budget.
3.After-sales service: Choose a brand that provides comprehensive technical support and after-sales service.
In short, the spring fatigue life testing machine is an important tool to ensure the quality of spring products and is widely used in many industries. Through the introduction of this article, I hope it can help you better understand this device and provide a reference for your purchase.
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