We introduce a steel plate product featuring bolts fixed to the plate using projection welding.

After the base material is formed by single-shot press processing, the bolts are precisely positioned and welded, achieving high strength and stable electrical conductivity.
This product is widely used in applications that require durability, such as architectural hardware and structural components.

★ What is projection bolt welding?
A projection is a small raised feature formed on either the bolt or the plate. By concentrating electrical current at this projection, localized melting and welding are achieved.
Compared to general spot welding, projection welding provides higher weld strength, superior positioning accuracy, and a cleaner finished appearance.

At Shinei Kogyo, welding conditions are carefully designed to minimize distortion at the welded area, enabling stable quality even in mass production.
We utilize a wide range of equipment, including press machines from 45 to 150 tons, servo presses, multi-spindle tapping machines, and NC lathes.
We support processing of various materials such as steel, SS400, SPHC, and stainless steel (SUS), and offer in-house delivery within the Kanto region.

For high-precision steel plates with projection bolt welding—from process design and prototyping to finished products—trust Shinei Kogyo for one-stop support.
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Shinei Kogyo Co., Ltd.
〒 262-0043, 1304-1 Amado, Hanamigawa, Chiba City, Chiba Prefecture,
Tel:+81-43-258-2310
Fax: +81-43-258-2314
Website: https://shin-eikougyou.jimdofree.com/
Contact: Mr. Oda
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