タイセイ Product Lineup

Taisei Corporation has a motto of meeting customer requirements and creating differentiated products through mold design and development cultivated over many years. We manufacture molds not only in Japan but also in South Korea and China. Please leave the handling of short delivery products and custom-made items to Taisei. For more details, please contact us or refer to our catalog.

Our company offers design and manufacturing contract services using general-purpose resins, reinforced plastics, and engineering plastics. We work together to solve challenges from product design to commercialization and can accommodate various materials, including engineering plastics and glass fiber compositions of 50%. We address challenges from product design and provide structural proposals tailored to our customers' needs. 【Features】 ■ Comprehensive outsourcing available from design to mold production, molding, and secondary processes. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where we were requested to design and mass-produce products using materials that consider the desired structure and environment of our customers. We proposed an assembly-type structure that allows for the disassembly of parts to reduce transportation costs. In response to the request for production using environmentally friendly materials, we suggested several types of eco-plastics. By meeting the required strength for the intended use and utilizing an assembly-type structure, we were able to reduce transportation costs. 【Case Overview】 ■ Product: Display stand for cosmetics ■ Material: PLA (plant-based biodegradable plastic) ■ Processing Steps: Product design, prototype mock-up production, mold production, injection molding ■ Highlights: Proposal of an assembly-type structure, suggestion of several types of eco-plastics *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where our company produced molds and performed injection molding in response to the challenge that there were no molding factories capable of handling a very high glass fiber content of 50%. We optimized the mold structure and molding conditions to address issues such as appearance defects caused by gas generation and burr formation, achieving the appearance standards and improving yield. Even after approximately 12 years of long-term mass production, despite the occurrence of appearance defects, we achieved zero end complaints through regular updates to the inspection items for molds and during molding. We have received very positive evaluations. 【Case Overview】 ■ Product: Residential key case ■ Material: PA66 Glass fiber 50% ■ Size: 80mm × 35mm ■ Processing Steps: Mold production and injection molding ■ Challenge: There were no molding factories capable of handling a very high glass fiber content of 50% ■ Key Points: Optimized mold structure and molding conditions to achieve appearance standards and improve yield *For more details, please download the PDF or feel free to contact us.

Here is a case study of a request for waterproofing in a housing assembly product, from product design to mass production. We proposed a waterproof structure for the housing assembly product and suggested materials that ensure strength. By conducting product design in-house from the design stage, we were able to closely collaborate with the customer and achieve a speedy realization of the product. 【Case Overview】 ■ Product: Measuring instrument case ■ Material: PC with 20% glass fiber ■ Size: 165mm × 115mm ■ Processing Steps: Product design, prototype mock-up production, mold production, injection molding ■ Key Points: Proposal of waterproof structure for housing assembly products, suggestion of materials that ensure strength *For more details, please download the PDF or feel free to contact us.

In response to the request to reduce costs and weight of existing steel products, we would like to introduce a case where we handled everything from product design to injection molding and assembly. We designed the product structure and extrusion structure, achieving the transition from steel to resin. By re-evaluating and redesigning all aspects such as materials and structures from scratch, we made it possible to reduce weight and costs. Additionally, by resizing and optimizing the shape, we improved the issue of placement in stores, leading to the resolution of various problems. 【Case Overview】 ■ Product: Cup Dispenser ■ Material: ABS ■ Size: φ150mm×570mm ■ Processing Steps: Product design, prototype mockup production, mold production, injection molding, spring production, assembly ■ Challenge: Cost reduction and weight reduction of existing steel products ■ Key Point: Designed the product structure and extrusion structure to achieve the transition from steel to resin *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case study of a customer who requested a company skilled in mold making, molding, and printing, as well as handling transparent products. Since the product is transparent, there are concerns about foreign material defects; however, we consistently perform screw cleaning for each production run, allowing us to produce with minimal foreign material defects. We also accommodated various post-processing steps such as insert molding, silk printing, and pad printing. 【Case Overview】 ■ Product: IC card reader housing ■ Material: Flame-retardant PC (black), PMMA (transparent) ■ Processing Steps: Mold making, injection molding, silk printing, pad printing, insert molding ■ Challenge: Seeking a company skilled in mold making, molding, and printing, as well as handling transparent products. *For more details, please download the PDF or feel free to contact us.

This is a case where we received a request to make something look gold, but due to the high cost of gold plating, securing the budget was difficult, so we wanted to find another way to achieve a gold appearance. We went through trial and error to ensure that it looked gold from the outside and made it appear gold when assembled as a product. Since it is a die, we also proposed a structure that would not have the gold color peeling off even when rolled, which resulted in great satisfaction. 【Case Overview】 ■ Product: Amusement dice ■ Material: ABS yellow smoke ■ Size: 75mm x 75mm ■ Processing Steps: Product design, mold making, injection molding, painting, sealing, adhesive assembly ■ Challenge: Gold plating would be too expensive and securing the budget was difficult ■ Key Point: Made it look gold by balancing the color of the molded product and the paint *For more details, please download the PDF or feel free to contact us.

We received a request to create our original product based on similar products from other companies, and we would like to introduce a case where we assisted from product design. To customize according to the customer's specifications, we held multiple meetings and addressed the product design. Due to the extensive cutouts in the fan guard, there were concerns about insufficient strength and distortion, so we optimized the number of fan guards and the ribs on the back. By customizing to our specifications, the integration into the equipment and the workability were improved. 【Case Overview】 ■ Product: Fan cover for residential ventilation fans ■ Material: ABS ■ Size: φ145×55 ■ Processing Steps: Product design, prototype mockup production, mold production, injection molding ■ Key Points: Conducted detailed meetings and customized to fit the customer's specifications and applications. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case study for a customer who requested a company capable of molding thick PC transparent products. Due to the thickness and length of the product, we established molding conditions to reduce sink marks, warping, and twisting, making mass production feasible. Despite the high difficulty of producing thick transparent long items, we were able to minimize sink marks, warping, and twisting, while also ensuring that foreign material defects were within acceptable limits, leading to positive feedback. 【Case Overview】 ■ Product: Decorative parts for amusement machines ■ Material: PC transparent ■ Size: 335mm × 85mm × thickness 7.0mm ■ Processing Steps: Mold making, injection molding (insert molding) ■ Challenge: Seeking a company capable of molding thick PC transparent products ■ Key Point: Established molding conditions to reduce sink marks, warping, and twisting, achieving mass production *For more details, please download the PDF or feel free to contact us.

In the automotive interior industry, reducing environmental impact and cutting costs are important challenges. In particular, interior parts tend to be large in size, leading to increased transportation costs. Additionally, compliance with environmental regulations is also required. Our products address these challenges by using environmentally friendly materials and adopting an assembly structure that allows parts to be disassembled, thereby reducing transportation costs. 【Usage Scenarios】 - Reducing transportation costs for automotive interior parts - Contributing to the SDGs through the use of environmentally friendly materials - Improving fuel efficiency through lightweight components 【Effects of Implementation】 - Reduction in transportation costs - Decrease in environmental impact - Contribution to the SDGs for client companies

In the home appliance industry, the casing is an important element that balances product protection and design. As awareness of reducing environmental impact increases, the adoption of sustainable materials is being demanded. Additionally, with the trend towards larger and multifunctional products, optimizing transportation costs has become a significant challenge. Our company proposes environmentally friendly materials and an assembly structure that contributes to reducing transportation costs. 【Usage Scenarios】 - Home appliances such as televisions, refrigerators, and washing machines - Companies seeking environmentally friendly products - Companies wanting to reduce transportation costs 【Benefits of Implementation】 - Reduction of environmental impact - Decrease in transportation costs - Increased freedom in product design

In the furniture industry, efforts to reduce environmental impact are being prioritized, and at the same time, reducing transportation costs for parts is also a challenge. Particularly for large furniture and complex-shaped parts, improving transportation efficiency is required. Our eco-friendly material molding and assembly design address these challenges. 【Usage Scenarios】 - Parts manufacturing for furniture manufacturers - Supply of DIY parts - When wanting to reduce transportation costs 【Benefits of Implementation】 - Use of environmentally friendly materials - Reduction of transportation costs through disassembly of parts - Space-saving through assembly structure

In the agricultural sector, reducing transportation costs for planters has become a challenge. Particularly when transporting large quantities of planters over long distances, these costs cannot be overlooked. Additionally, environmental considerations are also being emphasized, and the use of sustainable materials is being demanded. Our eco-friendly material planters address these challenges. 【Usage Scenarios】 * Reduction of planter transportation costs * Decrease in environmental impact * Use of plant-based biodegradable plastic PLA 【Effects of Implementation】 * Reduction in transportation costs * Contribution to the environment * Enhancement of corporate image

In the stationery industry, consideration for the environment and cost reduction are important challenges. In particular, there is a demand for the efficient transportation of large quantities of stationery while reducing environmental impact. Our products made from eco-friendly materials and designed for easy assembly address these challenges. 【Usage Scenarios】 * Stationery products such as writing instruments, files, and notebooks * Transportation to offices, schools, and stores * Companies that prioritize environmental considerations 【Benefits of Implementation】 * Reduction in transportation costs * Decrease in environmental impact * Enhancement of corporate image

In the electronics industry, there is a demand for both product protection and design aesthetics. In particular, reducing transportation costs is a crucial challenge for enhancing competitiveness. Our cases, made from eco-friendly materials and featuring a modular design, contribute to reducing transportation costs while minimizing environmental impact. By adopting a disassemblable structure for transport and using eco-plastics such as PLA (plant-based biodegradable plastic), we also achieve consideration for the environment. 【Usage Scenarios】 - Protective cases for electronic devices - When wanting to reduce transportation costs - When seeking environmentally friendly products 【Benefits of Implementation】 - Reduction in transportation costs - Decrease in environmental impact - Increased added value of products

In marine applications, it is important to protect internal equipment from water pressure and flooding, as well as to ensure buoyancy. In particular, equipment used underwater and buoys designed to float on the surface of the sea require waterproof and durable enclosures. Our plastic molded enclosures provide a consistent response from product design to mass production and offer waterproof structures for enclosure assemblies. We can also select materials that ensure strength. We support rapid product realization by closely collaborating with customers from the design stage. 【Usage Scenarios】 * Marine observation equipment * Underwater drones * Buoyancy devices * Buoys 【Benefits of Implementation】 * Protection of equipment through high waterproof performance * Extended lifespan through the selection of durable materials * Shortened development time through consistent support from product design to mass production * Flexible responses through close collaboration with customers

In agriculture and environmental fields, the waterproofing of equipment intended for outdoor use is crucial. Devices used in harsh environments, such as for soil, water quality, and weather monitoring, need to protect their internal electronic components from rainwater and humidity. Enclosures with low waterproofing can lead to equipment failure and data loss, potentially hindering accurate monitoring. Our plastic molded enclosures provide consistent support from product design to mass production, achieving high waterproof performance. 【Usage Scenarios】 - Environmental monitoring equipment - Agricultural sensors - Outdoor measurement devices 【Benefits of Implementation】 - Improved equipment reliability - Ensured data accuracy - Extended product lifespan

In the toy industry, a luxurious appearance is sought to enhance the added value of products. Particularly for high-priced toys and collector's items, gold plating is commonly used to convey a sense of luxury, but there are challenges related to cost and durability. This product achieves a level of luxury equivalent to gold plating at a low cost by adjusting the balance between the color of the molded product and the paint. In the case of dice, a structural proposal has been made to prevent color fading even when rolled, resulting in high customer satisfaction. 【Usage Scenarios】 - Toys that want to convey a sense of luxury - Toys that want to reduce the cost of gold plating - Toys that require durability 【Effects of Implementation】 - Creates a sense of luxury at a low cost - Improves durability - Increases customer satisfaction

In the automotive industry, reducing weight of parts has become an important issue for improving fuel efficiency and reducing environmental impact. By replacing metal parts with resin parts, it is possible to achieve weight reduction. However, applying gold plating to achieve a metallic appearance can increase costs and strain the budget. Therefore, our plastic molding technology can help balance the color of molded products and painting to reproduce an appearance equivalent to gold plating, achieving both cost reduction and weight reduction. 【Application Scenarios】 - Interior parts (areas requiring decoration) - Exterior parts (such as emblems) - Engine compartment internal parts 【Benefits of Implementation】 - Weight reduction through replacement of metal parts - Cost reduction compared to gold plating - Improved design quality - Reduction of processes through integration of parts

In the jewelry industry, there is always a demand for diversification in design and cost reduction. In particular, gold decorations are important for creating a sense of luxury, but gold plating can be expensive and may strain budgets. This case study achieved a gold-like appearance at a low cost by adjusting the color of molded products and the balance of painting as an alternative to gold plating. This contributes to cost reduction without compromising the luxury feel of the decorations. 【Usage Scenarios】 - Accessories - Interior goods - Novelty items - Exhibition decorations 【Effects of Implementation】 - Cost reduction compared to gold plating - Increased design flexibility - Achieving low cost without sacrificing luxury - Capability to accommodate diverse designs

In the home appliance industry, the design of products is a crucial factor that influences consumers' purchasing intentions. In particular, designs that convey a sense of luxury are essential for enhancing the added value of products. However, gold plating is expensive, and budget constraints can limit design options. This product achieves a luxury feel comparable to gold plating at a lower cost by adjusting the balance between the color of molded parts and painting. It is possible to maximize the appeal of the product without compromising its design quality. 【Usage Scenarios】 - High-end audio equipment - Designer home appliances - Decorated home appliances 【Benefits of Implementation】 - Cost reduction compared to gold plating - Increased design freedom - Enhanced added value of products

In amusement machines, an eye-catching design is an essential element that directly affects the product's operating rate. Particularly, the gold expression in features and cabinet decorations brings high production effects, while traditional gold plating processes have faced challenges such as high costs and delivery management. Our company has achieved a metallic feel comparable to gold plating by combining precise shaping through plastic injection molding with our uniquely developed high-brightness coating. By optimizing the base color of the molded products and the painting conditions, we supply high-quality products that are resistant to wear and impact at a low cost. This enables the creation of maximum visual effects within a limited development budget. 【Effects of Implementation】 - Cost Reduction: Replacing the gold plating process with injection molding and painting reduces the total unit cost. - Maintenance of High Precision Quality: Precise dimensional accuracy from injection molding and a stable appearance quality without inconsistencies. - Enhanced Design: In addition to accommodating complex 3D shapes, it allows for color tone adjustments that are difficult with plating. 【Technical Specifications】 Method: Plastic injection molding + high-brightness metallic coating Compatible Resins: ABS, PC/ABS, PMMA, etc. Features: Reduction of environmental impact through plating alternatives (compliance with environmental regulations)