Parts overview

Metal diaphragm (for compression driver)

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Edge shape can be tangential, roll, or special.

We lead the industry in shaping precision, including edges

Metal diaphragm (titanium)

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Complex shapes can be formed

Metal diaphragm (Aluminum)

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Complex shapes can be formed

Metal diaphragm (Series winding support)

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Metal diaphragm (Cone type, deep drawing)

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Cloth diaphragms

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Typical types of surface treatment

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Edge Material Coating or treatment
Polyester
silk
titanium
aluminum		 Coating or treatment
Urethane, acrylic, melamine, rubber, phenol coating, phenol coating
IP (Ion Plating), oxidation treatment DLC (Diamond Like Carbon)
Ceramic coating

 

*For the edges in the photos, the material is polyester with phenol coating.

Film diaphragms

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*We offer a wide range of colors; the above are some examples

Diaphragm ASSY 1 (for compression driver)

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Diaphragm ASSY 2 (for tweeter)

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Diaphragm ASSY 3 (for tweeter)

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Diaphragm ASSY 4 (for tweeter, series winding)

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Royal Sangyo Co., Ltd.Royal Sangyo Co., Ltd.

We respond to a full range for customer needs, from speaker development and design, to manufacturing.

Head Office Factory:
〒336-0932 Nakao 945-2, Midori-ku, Saitama-shi, Saitama, Japan
TEL:+81-48-810-1313 FAX:+81-48-874-3679

Kofu Development Center:
〒400-0112 Natori 298-4, Kai-shi, Yamanashi, Japan
TEL:+81-55-236-9393 FAX:+81-55-236-9390
Business description

Development, design, and manufacturing of speaker units
<Speaker-related parts>
Aluminum/Titanium cap manufacturing, aluminum/titanium diaphragm manufacturing, voice coil assembly
<Units>
Car speakers, audio speakers, TV speakers

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