大和合成 List of Products and Services

Yamato Gosei Co., Ltd. handles everything from resin selection, mold design, manufacturing, prototyping, to mass production processing, and offers the development of customized materials and proposals for product shapes. Additionally, we provide precision processing techniques such as gas venting within molds using rare thermosetting resins and composite molding technologies with metals. Furthermore, by incorporating long fibers into thermosetting resins, we are also engaged in the development of high-strength, high-heat-resistant resin molded products that are closer to metals. 【Uniqueness and Technical Standards】 ■ Comprehensive engineering services for product development ■ Thermosetting molding technology ■ Weight reduction of automotive components through metal composite integration ■ Quality control within the molding process ■ Promotion of automation and labor-saving measures *For more details, please download the PDF or feel free to contact us.

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Our company is a plastic molding processing manufacturer. Utilizing approximately 85 years of molding experience, we provide total support from planning to design, prototyping, and mass production. We can handle various tasks, such as creating 3D data from sketches, manufacturing with both metal and resin 3D printers, and producing prototype molds quickly and at low cost. In addition to our extensive facilities, we can also collaborate with partner factories. 【Features】 ■ Careful hearing of requirements ■ 85 years of know-how and track record ■ Proposals for shapes suitable for QCD considering mass production ■ Consideration for confidentiality *For more details, please refer to the materials. Feel free to contact us as well.

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Our company has a 3D printer that uses a laser melting method known as PBF (Powder Bed Fusion). The advantages of metal 3D printing include the ability to create complex shapes, improved customization, and optimization of weight and strength. At Yamato Gosei, we are committed to developing technologies that maximize these benefits. We are also offering materials that explain the "advantages and disadvantages of metal 3D printers." Please check the PDF download below. *For more details, please refer to the PDF materials or feel free to contact us.*

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Accelerate your business with revolutionary metal 3D printers. They can precisely reproduce complex designs and quickly manufacture robust products. Improve the speed from research to product development and strengthen your competitiveness. Streamline the production of custom products and prototypes, creating new revenue opportunities. Achieve cost reductions with sustainable manufacturing processes. Future-oriented technology realizes visions and drives innovation. Respond to the needs of the times and establish leadership in an evolving business environment.

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Our company will be exhibiting at the "High-Performance Plastics and Rubber Exhibition 2023" held at the Osaka Industry Creation Center. This exhibition will feature many small and medium-sized manufacturers with unique know-how, utilizing a wide variety of materials and equipment. At our booth, we will introduce "environmentally friendly plastic materials" such as "PP resin with bamboo powder" and "biodegradable pulp-filled resin." We sincerely look forward to your visit. 【Exhibition Overview】 ■ Date and Time - February 9, 2023 (Thursday) 13:30 - 17:00 - February 10, 2023 (Friday) 10:00 - 16:00 ■ Venue: Osaka Industry Creation Center 3F and 4F ■ Booth: No. 32 ■ Admission: Free (Pre-registration required) *For more details, please refer to the PDF document or feel free to contact us.

• Parts and Materials

Biomass plastic is a type of plastic obtained by chemically or biologically synthesizing renewable biomass resources. Even when incinerated, it has the characteristic of not increasing the concentration of CO2 in the atmosphere due to the carbon neutrality of biomass. This is expected to contribute to reducing dependence on fossil resources and solving the 3R issues related to plastics. 【Features】 - By incorporating bamboo powder, wood powder, coffee grounds, etc., into PP resin, it can be disposed of as general waste. - Consideration for the environment, such as preventing global warming, is addressed by reducing the amount of resin, which in turn reduces CO2 emissions. We also accept consultations for molded parts tailored to our customers' needs and applications, so please download the materials for more details or contact us directly.

• Office supplies and stationery

We take pride in being a small and medium-sized enterprise that supports manufacturing around the world, expanding the possibilities of plastics, and continuing to contribute to societal development. In light of this, we have developed "environmentally friendly plastic materials" to address recent environmental issues. [Content of the materials] - Introduction of PP resin with bamboo powder - Introduction of PP resin with wood powder - Introduction of resin with biodegradable pulp - Introduction of resin containing eggshells - Strength data and possible resin contents - Replacement applications, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Parts and Materials

By incorporating bamboo powder into plastic materials (mainly polypropylene), it is expected to reduce CO2 emissions, lower resin costs, add the antibacterial effects of bamboo to the resin, and improve mechanical strength.

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Yamato Gosei Co., Ltd. is conducting bulk production of 5-layer tubes at its factory in Ho Chi Minh, Vietnam. By using multi-layer tubes, it is possible to protect the contents with barrier agents (preventing oxidation, preventing the loss of fragrances, etc.) and to offer a wide variety of colors. It is also possible to freely change materials from 1 layer to 5 layers. 【Specifications】 ○ Material: Resin ○ Lot: 1 to unlimited ○ Accuracy: --- For more details, please contact us or download the catalog.

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Medical device parts made of PC (polycarbonate) and PP (polypropylene) are components for drip infusion needles, components for dialysis needles, and catheter introducer components, all molded in a clean environment. [Features] ○ Processing method: Injection molding For more details, please contact us or download the catalog.

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This is the frame part of a winding coil. We use PBT (polybutylene terephthalate) resin with GF (glass fiber). Yamato Gosei Co., Ltd. performs pin insertion on this resin part. 【Features】 ○ Processing method: Injection molding For more details, please contact us or download the catalog.

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We produce resin parts for control equipment. We can accommodate parts of various sizes. We can also handle secondary processes such as welding, insert metal fittings, insert-out metal fittings, silk printing, and assembly. 【Specifications】 ○ Material: Engineering plastics ○ Lot: 1 to no upper limit ○ Precision: 1/100 to 1/1000 mm For more details, please contact us or download the catalog.

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We are jointly developing materials with material manufacturers that improve the friction coefficient and are tailored for clutch component applications. We can ensure high roundness. Some friction sliding materials are also insert molded. Due to the need for high strength, nylon (with 50% glass) is also used. 【Specifications】 ○ Material: Resin ○ Lot: 1 to no upper limit ○ Precision: 0.1mm to 1/100mm For more details, please contact us or download the catalog.

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It is used for pipes that supply air to the engine and for auxiliary equipment. The core extraction structure is performed using a mold mechanism along the angle of the R80. There are three insert fittings. After molding, an annealing process is carried out to improve dimensional stability. In addition, we can also produce motorcycle meter parts, muffler parts, cover parts, emblems, etc., so please feel free to consult with us. 【Specifications】 ○ Material: Resin ○ Lot: --- ○ Accuracy: Less than 1/1000mm For more details, please contact us or download the catalog.

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These are electrical and electronic components such as proximity switches (sensors) and trimmer capacitors that support a computer society. They also accommodate metal inserts and thin-walled molding. 【Specifications】 ○ Material: Resin ○ Lot: --- ○ Accuracy: --- For more details, please contact us or download the catalog.

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We produce various sizes of breaker components in Japan and Vietnam. We manufacture a variety of parts, including the exterior of the breaker, internal electrical insulation components, and sliding parts such as switches. Production is done through injection molding and compression molding. 【Specifications】 ○ Material: Super engineering plastic ○ Lot: 1 to no upper limit ○ Precision: 0.1mm to 1/100mm For more details, please contact us or download the catalog.

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This is a control component for automatic vehicles made with super engineering plastics. The contact terminals and colors are inserted into the mold before molding. The thickness of the area where the sensor is placed is very thin at 0.4mm. Terminal alignment tests, continuity tests, helium leak tests, and dielectric strength tests are conducted. 【Specifications】 ○ Material: Super engineering plastics ○ Lot: --- ○ Accuracy: --- For more details, please contact us or download the catalog.

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This is a part used for the cap of a car's reservoir tank and is classified as an important safety component. We also perform assembly and pad printing. After assembling it to the tank, we conduct an air leak test. 【Specifications】 ○ Material: Engineering plastic ○ Lot: --- ○ Precision: --- For more details, please contact us or download the catalog.

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Blow molding is the most representative method for forming hollow molded products. Plastic raw materials are melted in a blow molding machine, clamped in a mold, and air is blown inside to create hollow products (blow molded products). Daiwa Gosei Co., Ltd. manufactures eye drop containers in the clean room of its factory in Vietnam. For more details, please contact us or download the catalog.

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This is a power steering reservoir tank made from engineering plastic. A major feature is that two molded parts are fused together using vibration welding to create a single unit. To ensure functionality, air leak tests and pressure tests are also conducted. The extraction by robots and the press-fitting of the color (inserts) are performed automatically. 【Specifications】 ○ Material: Engineering plastic ○ Lot: --- ○ Precision: --- For more details, please contact us or download the catalog.

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This is a sleeve for vibration motors for mobile phones. It can accommodate small precision parts with a size of 1.1 mm. It is compatible with a molding system that uses suction for extraction and sensors for verification. 【Specifications】 ○ Material: Engineering plastic ○ Lot: --- ○ Accuracy: --- For more details, please contact us or download the catalog.

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This is a angular velocity sensor (gyro sensor) molded using engineering plastic with a vertical injection molding machine. It incorporates 10 contact terminals and 2 colors as inserts within the mold. A vertical injection molding machine, which is advantageous for inserts, is used. Terminal alignment tests and continuity tests are conducted. We also have extensive experience in insert molding, so please feel free to consult us when looking for insert molding services. 【Specifications】 ○ Material: Engineering plastic ○ Lot: --- ○ Accuracy: --- For more details, please contact us or download the catalog.

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Due to the complex shape, the upper and lower parts of the product are molded separately and bonded using vibration welding. Metal brackets can also be assembled in-house. Contamination management and pressure management are also conducted. Currently, we are focused on automotive applications, but we have a track record of molding various resins, so if you are looking for a reservoir tank, please contact us. 【Specifications】 ○ Material: General-purpose plastic ○ Lot: 1,000 to 100,000 pieces ○ Accuracy: Approximately ±0.5mm For more details, please contact us or download the catalog.

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This is a resin pulley with a proven track record as an automotive part. A pulley is a component that transmits the engine's rotation to the belt. It is used for adjusting the position and tension of the belt. By using thermosetting resin, heat resistance and oil resistance are improved. It significantly contributes to weight reduction when used as a substitute for conventional metal pulleys. Additionally, compared to metal pulleys, it has the characteristic of producing less vibration and noise during operation. For pulleys with complex shapes, such as those with grooves, there is a cost reduction effect. 【Specifications】 ○ Material: Engineering plastic ○ Lot: 1 to no upper limit ○ Precision: 0.1mm to 1/100mm For more details, please contact us or download the catalog.

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We have established a stable mass production technology for bamboo fiber-reinforced plastic, "bamboo fiber-reinforced green composite material." For the first 10 customers, we are giving away a stamp tray made from bamboo-containing plastic.

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