Precision Press Processing of Non-Metals: Glass Phenolic Resin Laminates

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last updated：Jun 25, 2025

YAMADA INDUSTRIES Co., Ltd.

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Introducing examples of press processing of non-metallic materials! For insulators such as starter motors for automobiles.

Our company, Yamada Manufacturing, is a processing manufacturer specializing in insulators, and our strength lies in our ability to design and manufacture molds for pressing in-house. We can not only accommodate detailed design changes and maintenance but also reduce the initial costs associated with molds. Additionally, we are characterized by our ability to produce molds in a short lead time, with prototype molds taking 3 to 5 days and mass production molds taking 3 to 4 weeks. 【Processing Examples】 ■ Application: Insulators for automotive starter motors, etc. ■ Material: Glass phenolic resin laminate ■ Processing Method: Press processing (with some cutting processing) ■ Size: Material size is 1000mm x 1000mm, thickness ranges from 0.3 to 2mm. Product sizes typically around φ50, but can accommodate shapes from φ1 to approximately 250. ■ Lot Size: From 1 piece to about 10 million pieces per month (with a track record of 100 million pieces per month) 【Material Properties】 - Materials with excellent insulation, heat resistance, and mechanical strength, mainly used in automotive parts. - Used as handles, knobs, and jig materials for printed circuit boards, distribution boards, transformers, circuit breakers, insulating terminal boards, volume controls, switches, etc. - This product is based on glass, providing exceptional heat resistance and strength. *For more details, please download the materials or feel free to consult us!

Related Link - http://www.yamadase.co.jp/

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"Because it's Yamada Manufacturing! Points of Processing" - While cutting and molding are the mainstream methods for processing Bakelite, cutting takes a long time and is costly, making mass production difficult. Additionally, molding often leads to insufficient strength due to voids and unstable dimensions. ⇒ With Yamada Manufacturing's expertise in press processing, although molds are necessary, we can achieve high-precision and high-speed press operations to produce accurate and cost-effective products. - General press processing manufacturers that handle common metals use cutting oils during processing, but doing so with this product can compromise product performance and make it difficult for products to stick together during processing. ⇒ Our company can perform processing in a dry environment, allowing us to process without affecting the products. - When dealing with common metals, general press processing manufacturers face various issues, such as differences in mold specifications. The biggest problem is the high risk of foreign substances contaminating the conductive parts, leading to insulation failures. ⇒ As a specialized manufacturer of insulating materials, our company has a very low risk of foreign substance contamination in conductive products.