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  • How do we provide prototype products swiftly and economically?

    Keiaisha Prototype Fabrication Group utilizes a batch fabrication structure that allows correspondence with the customers 24 hours a day. This makes it possible to provide products in a short lead time.
    We achieve a high level of quality and meet the demands for cost reduction by utilizing a wide variety of press tooling techniques to meet the customers' demands on a case by case basis.
    We determine the press tooling technique by reviewing the type and thickness of the material, required quantity, shape and other requirements. Thus we are able to provide the optimum cost and short lead-time.

  • A sense of trust earned from past customers and our confidence in meeting due date, cost, and quality requirements

    We produce more than 3,000 prototypes each year.
    Lead-time is normally 1 week. Keiaisha Prototype Fabrication is supported by automotive manufacturers, transportation machinery manufacturers, industrial machinery manufacturers, and many other Japanese core manufacturers.

    We are absolutely confident in our capability to reduce lead-time and cost, and increase the level of quality in prototype part fabrication and to mass production. Please contact us.

  • Strategically reduce cost by holding mass production review meetings

    We believe that a key to a successful reduction in manufacturing cost lies in how well we incorporate the cost reduction ideas in the designing stage. Thus we follow our philosophy daily.
    We hold meetings on a regular basis to bring in ideas to improve productivity from the very beginning of the tooling designing at Keiaisha Prototype Fabrication Group.
    Manufacturing engineers are involved in these mass production review meetings and we discuss ideas to strategically reduce the cost before a design is drawn.
    During this stage, possible oncoming concerns are brought up to smoothly transfer from prototype to mass production.
    All concerns are brought up to the customer's attention as a proposition for mass production.

  • Machine and engineering capability to support proposition for a solid mass production

    Numerical proof is needed to support any cost reduction and lead-time reduction ideas.
    It is vital to have the layout equipment such as 3D configuration, 3D picking, and 3D modeling to have a layout of the parts in volume, speed, and accuracy to meet a short lead-time and stable quality in products.
    Our CNC (Computer Numerical Control) screen layout system, and other latest technology measurement equipment, allow automated layout to accommodate the needs of stable quality condition in a mass production environment.

  • Process innovation attained by 3D data is the fastest road to a quick turnaround

    The process innovation derived from Keiaisha Prototype Fabrication Division's proud "group of 3D Data process" has made the "super condensed process" or "unsurpassable condensed lead-time" and makes vertical mass production launch possible.
    The goal of our "3D consulting team" is to improve the efficiency of process and the level of quality. With our experience in automotives, and our increased volume of business outside of automotives, we are consistently increasing our knowledge.
    We welcome the opportunity for the process innovation and 3D processes.

  • Consecutive production line that accommodates welding assembly and surface treatment

    We are equipped with press stamping, welding (A/W, P/W, and S/W), assembly, ED painting, and surface treatment.
    Keiaisha's factory is ISO 9001 certified. We strive to attain customer satisfaction and trust through our high level of quality, meeting delivery requirements, and competitive pricing. Our US subsidiary, KI(USA) Corp., is QS 9000 certified. KI(USA) is also equipped with the same type of equipment as Keiaisha is and meets customers' delivery and quality requirements.

prototype part from 3D data.
press stamping, welding
No1 Short lead-time on press stamping parts and tooling fabrication

From tooling fabrication to press stamping, machining, welding, and ED painting, we have a coherent production system.

No2 Our strength is the vertical launch

We are fully equipped to meet the customer's demands in urgent needs and launches supported by our 24-hour working structure and precision tooling fabrication technology.

No3 Equipment and engineering capability that allows us to make suggestions for mass production from the prototype development stage.

We are proud of our equipment and engineering capability that satisfy mass production level required specifications and cost reduction strategies.
We review our products utilizing the Coordinate measuring machine, contracer, circularity measurement machine, and 3D graphic layout machine, which are kept in our temperature controlled lab. We also use multifaceted discipline by incorporating the design shape, test strength and FEM analysis.

No4 Can create prototypes from either 2D or 3D

Drawings are prepared from CAD data. This allows prototypes and production parts to be made without physical drawings.

No5 Accommodates variety of welding, roh welding, and surface treatment in-house

We have the capability to apply ED coating from small products to car doors and roofs.

Inquiry and request form

Keiaisha Prototype Fabrication Group provides prototypes and mass production parts for automobiles, railroad vehicles, construction machineries, aircrafts, industrial machineries, etc.
Please contact us by phone at +81-45-804-8812 or fill out the inquiry form.

Please fill out your information.

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Case studies of our engineering

Suggestion for the press plate shape

Material: SAPH440
Material thickness: 4.5 mm

CAE analysis on base parts

Inspect resonant frequency, auxiliary machine vibration, bracket emergence stress, etc. and compare with the results from the actual machine.

CAE analysis on base parts

Validate customer's criteria using CAE analysis and determine the suggested design shape.

Apply single body vibration endurance test

Apply 107 time resonant frequency and stress measurement, validate for the existence of cracks. This would allow to create an improved shape easily.

Adoption to mass production engines

The simulation study on 3D and CAD make interference at assembly visible. The issue can be resolved beforehand to make smooth production launch possible.

Testing and layout equipment

  • Coordinate measuring machines
  • 3D graphic image layout machine
  • Vibration testing machine, stress monitor
  • 10 ton fatigue testing machine
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