Spring testing machine plays an indispensable role in the field of material testing. It is a powerful tool for evaluating spring performance and is widely used in many industries.

Spring testing machines are divided into the following types according to the loading method:

1. Tension spring testing machine: used to test tension springs, it can accurately measure parameters such as tensile strength and elastic limit, and is suitable for various tension springs.

2. Compression spring testing machine: for compression springs, it can accurately measure indicators such as compression stiffness and yield pressure, and is suitable for compression springs of different specifications and shapes.

3. Torsion spring testing machine: specially used to test the torsional performance of torsion springs,it can measure parameters such as torsional stiffness and limit torque, and is important for testing springs that require high torsional performance, such as automobile valve springs.

Spring testing machines are divided into the following types according to the control method:

1. Manual spring testing machine: it is simple to operate, but the test accuracy and repeatability are greatly affected by human factors, suitable for occasions with low requirements and low frequency.

2. Digital spring testing machine: the digital display instrument is intuitive, can automatically record data, and has high test accuracy, but the function and degree of automation are limited.

3. Microcomputer-control spring testing machine: with computer control and automatic test, it can perform complex modes such as fatigue and dynamic characteristics test to meet higher requirements.