太西精工 List of Products and Services

Our company has established a thorough quality control system that applies the quality management practices developed through mass production of automobiles and gas-related equipment to prototypes and small quantities. In addition to visual inspections, we have introduced image recognition machines, allowing us to flexibly respond to requests ranging from sampling inspections to 100% inspections. Furthermore, during the prototype phase, we provide various inspection and measurement data as per customer requests. 【Features】 ■ Quality control combining inspection equipment such as image sorting machines with visual inspections ■ Creation of various inspection sheets and reports tailored to customer needs, from prototypes to mass production *For more details, please refer to the related links or feel free to contact us.

• Measurement and Inspection

We would like to introduce a case study of proposals unique to Tainishi Seiko, a manufacturer of construction materials, based on their experience with "low-profile round head bolts." The manufacturer requested that the head be as low as possible. Our company was able to mass-produce the bolts with a head diameter of φ18 and a head thickness of 2mm, using only cold forging without any secondary processing. 【Case Overview】 ■ Request - To make the head as low as possible ■ Proposal and Results - Mass-produced with a head diameter of φ18 and a head thickness of 2mm, using only cold forging without any secondary processing. *For more details, please refer to the related links or feel free to contact us.

• Safety and consumables

We would like to introduce a case study of proposals unique to Tainishi Seiko, which has extensive experience with "shelf dowels," from our visit to a building materials manufacturer. The manufacturer had been producing through cutting, but they faced issues with low yield, long production times, and consequently high costs. After considering production with headers, we found that it became possible to mass-produce using a 2-die, 3-blow method. 【Case Overview】 ■ Request - They were producing through cutting, but faced low yield, long production times, and thus high costs. ■ Proposal and Results - After considering production with headers, we were able to achieve mass production using a 2-die, 3-blow method. *For more details, please refer to the related links or feel free to contact us.

• Shelves and racks

We would like to introduce a case study unique to Tainishi Seiko, a manufacturer of architectural hardware, regarding the experience with "protruding washers." The manufacturer requested a design with protrusions and concave surfaces on both sides, which posed a high technical difficulty. Initially, we considered manufacturing using a press, but since it was not feasible, we explored using a part former. After prototyping, we were able to mass-produce using a 4-die, 4-blow process. Instead of using the parts individually, we assemble them with bolts and other components to create a finished product. [Case Overview] ■ Request - Design with protrusions and concave surfaces on both sides, posing high technical difficulty. ■ Proposal and Results - Initially considered manufacturing with a press, but since it was not feasible, we explored using a part former. - After prototyping, we were able to mass-produce using a 4-die, 4-blow process. *For more details, please refer to the related links or feel free to contact us.

• Safety and consumables

At Taisei Seiko, we handle a wide range of projects from the design and prototyping stages, including cold forged products and special screws. According to customer requests, we support appropriate manufacturing considering usage environments, functions, specifications, and production plans. Additionally, in prototyping that includes development, we will make various proposals while leveraging our past experience and manufacturing know-how, taking QCD into account. 【Features】 ■ We handle a wide range of projects from the design and prototyping stages, including cold forged products and special screws. ■ We support appropriate manufacturing according to customer requests, considering usage environments, functions, specifications, and production plans. ■ In prototyping that includes development, we will make various proposals while leveraging our past experience and manufacturing know-how, taking QCD into account. *For more details, please refer to the related links or feel free to contact us.

• Safety and consumables

At Taisei Precision Engineering, we actively challenge ourselves with technically difficult shapes and processing. We design and manufacture dedicated tools and special jigs in-house, striving to meet your requirements not only in terms of dimensional accuracy and quality but also in delivery times and costs. We can flexibly accommodate various quantities, including prototypes, single items, small lots, and mass production. Please feel free to contact us when you need our services. 【Features】 ■ Actively challenge ourselves with technically difficult shapes and processing ■ Design dedicated tools and special jigs in-house ■ Respond to your requirements in terms of quality, delivery times, and costs in addition to dimensional accuracy ■ Flexibly accommodate various quantities, including prototypes, single items, small lots, and mass production *For more details, please refer to the related links or feel free to contact us.

• Safety and consumables

This document introduces five key points to identify potential issues that are likely to occur during mass production of cold-formed and special screws at the prototype stage. It explains questions such as "Is it a product that requires a lot of post-processing?" and "Are there strict tolerances on unnecessary parts?" We also include unique proposal examples and product cases from Tainishi Seiko. We encourage you to read it. 【Contents (partial)】 ■ Five key points to identify potential issues during mass production at the prototype stage - Is it a product that requires a lot of post-processing? - Are there strict tolerances on unnecessary parts? - Are there thin sections that put a burden on the mold? - If post-processing is necessary, is the product shaped for easy flow in automatic machines? - If plating is required, is the shape conducive to easy plating? *For more details, please refer to the PDF document or feel free to contact us.

• Safety and consumables

In this document, we introduce five key points to identify potential issues that are likely to occur during mass production of cold-formed and special screws at the prototype stage. We explain questions such as "Is it a product that requires a lot of secondary processing?" and "Are there strict tolerances on unnecessary parts?" We also include unique proposal examples and product cases from Tainishi Seiko. We encourage you to read through it. 【Contents (partial)】 ■ Five key points to identify potential issues during mass production at the prototype stage - Is it a product that requires a lot of secondary processing? - Are there strict tolerances on unnecessary parts? - Are there thin sections that put a burden on the mold? - If secondary processing is required, is the product shaped for easy flow in automatic machines? - If plating is necessary, is the shape conducive to easy plating? *For more details, please refer to the PDF document or feel free to contact us.

• Safety and consumables

Our company specializes in the design, manufacturing, and sales of special screws, special rivets, special bolts, pins, collars, hollow bolts, hollow nuts, and other fastening components. By using multi-stage headers and parts formers, it is possible to process wire into more complex shapes in a single step through cold forging. 【Product Line】 ■ Manufacturing and sales of special screws, specially shaped parts, and cold forged products (parts formers and header processing) in general ■ Development and design of fastening components from drawings ■ Materials: Steel, stainless steel, brass, copper, aluminum, etc. ■ Surface treatment achievements: Unichrome, chromate, nickel, chrome, trivalent chromate, trivalent unichrome, rust-proofing, Parkerizing, various coatings, etc. *For more details, please download the PDF or feel free to contact us.

• others