Question: As a precision hardware processing manufacturer, what are the core advantages of the headphone steel bars you produce in terms of technology and craftsmanship?

Answer: In the over-ear headphone market, precision hardware components directly affect the durability of the product and the user experience. Our company specializes in the research and development as well as production of headphone steel bars, and has significant advantages in material selection, structural design and processing technology.

Materials Science and Elastic Design

The steel bars of our headphones mainly use SUS301 stainless steel strips, which are renowned for their excellent strength, elasticity and fatigue resistance. We can provide products in different hardness states according to customer requirements, such as 1/2H (semi-hard), 3/4H (three-quarters hard), and even FH (fully hard) states, to meet various application scenarios ranging from high elasticity to high strength. For instance, in the sliding arms of headphones that need to be frequently extended and retracted, we would recommend using steel bands that have undergone specific heat treatment, featuring high tensile strength and good elongation, to ensure that the steel bars can return to their original shape after tens of thousands of bends.

Precision machining and surface treatment

We have professional steel bar cutting devices (the technical patent has been evaded, but the process is similar), which can ensure that the cut steel bar cross-section is smooth without burrs, and the dimensional accuracy is controlled within ±0.02mm. For surface treatment, we offer processes such as double-sided brushing, rounded corners and double-sided film application. Wire drawing treatment not only enhances the aesthetic appeal of the product but also eliminates the microscopic stress concentration points on the surface, thereby increasing fatigue life. The fine rounded corner treatment can effectively prevent the steel bar edges from wearing out the internal plastic parts of the headphones during long-term use.

Innovative structural design to enhance product lifespan:

We drew on the advanced sliding arm steel sheet structure design concept in the industry. For instance, by adopting a separated steel sheet structure (with the first and second steel sheets being independent), when a single steel sheet breaks due to accidental force, it will not cause the entire earphone adjustment mechanism to malfunction, thereby significantly enhancing the overall service life and maintainability of the earphones. This modular design thinking is precisely an important manifestation of our company's efforts to add value to customers' products.

Through continuous in-depth efforts in the above three dimensions, we can provide headphone brand manufacturers with steel bar solutions that not only meet the basic functions but also excel in durability, safety and user experience.