Product Name: Sound Port (Hearing Aid Component)
Material: Phosphor Bronze C7521R-1/2H, t:0.1mm
Drawn Outer Diameter: Φ1.4mm
Product Dimensions: 3.2mm × 3.2mm
Total Height: 1.5mm
Key Points in Die Design:
Due to the non-circular drawn shape, innovative process design was necessary.

At Kyowa Hearts, we take on the challenge of new manufacturing technologies, including progressive deep drawing. This enables us to provide deep drawing as an alternative to conventional curling techniques for components requiring higher strength, offering customers greater flexibility in design and development.

We take full responsibility for the entire production process—from die design to final product—ensuring top-level precision and durability. With all operations, from prototyping to die design, manufacturing, and mass production, carried out at our Yokohama factory, we can respond flexibly and quickly to customer needs. Feel free to contact us.

For more deep drawing product examples, click here:
https://www.kyowa-hearts.com/sibori/

☆ Frequently Asked Questions
https://www.kyowa-hearts.com/faq/

☆ Equipment Information
https://www.kyowa-hearts.com/setsubi/

☆ Contact & Process from Prototyping to Mass Production
https://www.kyowa-hearts.com/flow/

＜Contact Information＞
Kyowa Hearts Co., Ltd. – Rumi Sakamoto
■ Address: 1-5-1 Takata-Nishi, Kohoku-ku, Yokohama, Kanagawa, Japan
■ TEL: 045-593-6116 FAX: 045-593-6121
■ Official Website: https://www.kyowa-hearts.com