TWS earphones are also waterproof. Why do some brands have few after-sales complaints, while others frequently pay for water problems?

The answer is cruel: many products only "look waterproof" but fail to measure the "sealing" accurately and stably on the production line.

To truly transform "waterproofing" from a marketing concept into mass-produced and verifiable quality, reliable sealing testing is still needed.

TWS earphones have unique appearance and precise internal components, which make them face many core challenges in the sealing testing process:

Difficult to seal: The product is small in size and complex in structure, making it difficult to position and seal.

Difficult to protect: The outer casing is mostly made of high-gloss material. During testing, it is necessary to ensure sealing and avoid scratches.

Difficulty in detection: The internal cavity is tiny, generally only about 0.2ml inside. It is difficult for traditional air seals to identify large leaking products with an internal volume less than 1ml.

Hirays TWS earphone sealing detection solution

Hirays has customized a TWS Bluetooth headset sealing testing solution for a major headphone manufacturer, successfully achieving IPX7 and above waterproof level testing and significantly improving product yield.

? Test instruments

? Test platform

? Upper mold

? Lower mold

Three core advantages of the solution

Reliable and stable:Accurately detect large leaks in small cavities

High-precision detection: HD-28 Ingenuity series air tightness detector is comparable to the accuracy and stability of international first-line brand air tightness equipment.Equipped with advanced algorithms, it can accurately identify products with large leaks whose internal volume is less than 0.1ml, effectively solving the industry pain point of large leaks being covered up during the inflation stage.

Data management: supports test data storage and analysis, provides data support for process optimization, and achieves quality traceability.

Convenient and efficient:15 seconds/item, UPH up to 240

Efficient cycle time: It adopts a four-station design of "front loading and rear picking", which seamlessly connects loading and unloading, greatly saving production line space. The four channels operate independently without interfering with each other. It only takes about 15 seconds to detect a single product, and the UPH (unit hourly production capacity) can reach 240 pieces, which is a perfect match for high-speed production lines.

Flexible deployment: The equipment has a compact structure, provides a PC-side DEMO program, supports automated integration and batch deployment, and can be easily integrated into smart production lines to achieve unmanned operation.

Accurate: Tailor-made, strictly prevent scratches

High-precision molds are customized for different types of headphones, using anti-static steel materials and soft rubber protective designs to ensure perfect sealing while effectively avoiding product scratches and ensuring that the test results are true and reliable.

Reasons to choose Hai Ruisi

01 Self-research of core technology

Hirays insists on at least three technological breakthroughs every year, independently develops a complete set of sealing testing equipment, and performs well in domestic substitution. Among them, the self-developed sealing silicone has performance comparable to aviation standards, which can ensure the consistency and long-term stability of testing from the source.

02 Localization advantages

Professional services: The experienced local team provides full professional services from scheme design to installation and commissioning.

Quick start: Professional instrument operation training and 7-day free prototype trial are provided to ensure that production line personnel can quickly master operation and maintenance.

Exclusive guarantee: Provide exclusive services throughout the life cycle, with quick after-sales response and worry-free use.

03 Trust in leading brands

Industry deep development: We have been deeply involved in the sealing testing field for nearly 20 years, serving more than 5,000 customers, covering consumer electronics, automotive electronics, new energy and other industries, meeting all sealing testing needs.

Head endorsement: As a long-term partner of many large 3C headset companies, with 3000+ mature cases, we are well versed in the precision testing needs of TWS headsets, and our solutions are mature and reliable.

Conclusion

Choosing Hai Ruisi's high-precision sealing testing solution will allow each pair of TWS headphones to withstand the dual test of the market and users, helping you stand out in the fierce market competition and win user reputation.