What you can imagine can be created

We are specializing in precise transparent prototypes

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About Us

Expert in product development

INAC US is an expert in product development. We transform the ideas and imaginations of our customers into products with our innovative technology and over 20 years of experience. In addition to machining, modeling, and welding, we offer design and painting services. 

Since its establishment in 1997, INAC has expanded business on a global scale with factories in Japan, China and the United States.  Through cooperation among branches in the three countries, we offer the highest level of services and products based on customers’ needs. 

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End to end production services

Design / modeling​ : Our Design and Development Department can work directly with your designers

Design / modeling

Well–versed designers in our Design and Development Department can work directly with your designers to make proposals on prototype production as well as mass production.

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High transparency machining

A high-quality transparent model would be manufactured by our unique high transparency treatment.

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3D printing (SLA)

3D printing enables us to manufacture products with bottle shapes and undercut shapes, which are difficult to produce with traditional machining methods.

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Vacuum casting​

Vacuum casting

Cost-effective production is possible by using this technology, when creating prototypes in small quantities, such as 5 to 100.

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Portfolio

We have the knowledge and technology to turn your imagination into reality.

Headlight Mock-up
Secondary Decoration
Internal visualization
non-ferrous metal
Transmission case
Resin cutting
Mechanism housing
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STEP5: Quality Assurance and Precision Inspection

A quality inspection is performed. At INAC, where quality comes first, we use CMMs, gauges, and other equipment for precision checks.

STEP4: Post-Processing and Finishing

Finishing is done by removing the supports, polishing, and applying transparency treatment. It is also possible to paint and apply plating to the formed product.

STEP3: UV-Laser Print Formation (SLA Process)

Output: The product is formed by irradiating the liquid with a laser beam of UV light and laminating it. The conditions of the external environment, such as room temperature and humidity, must be maintained.

STEP2: Model Program Generation and Support Adjustment

A program for model formation is created. Depending on the shape, it may be necessary to adjust the degree of tilt and the position of the supports.

STEP1: CAD File Submission

Upload your CAD to our online quoting platform.

STEP 3: Rendering and Scene Integration

We can also handle exterior modeling and interior structure design based on illustrations. After creating the 3D models, we can create a rendering to fit a scene. We can deliver images even if we do not proceed with production.

STEP 2: Detailed Design and 3D Modeling

Once the design is determined, drawings and 3D models will be created. The structure will be examined, taking into consideration not only the external design but also functionalities such as mating and sliding.

STEP 1: Initial Design Consultation

The first step is a meeting to discuss the project. Drawings are not required for this meeting. We will create a design from a sketch based on the overall image and concept that you have in mind.

STEP5: Quality Assurance and Inspection

We perform quality inspections. At INAC, where quality comes first, we use CMMs, gauges, and other equipment for precision checks.

STEP4: Post-Casting Finishing

Vacuum casting materials are cured and then taken out of the silicone rubber mold. Then we perform finishing such as deburring and gating, and they are made into finish products.

STEP3:Material Injuction

Liquid casting material is injected into the silicone rubber mold in a vacuum environment.　

STEP2: Mold Preparation

The silicone mold is cut open into a male and female mold, and the master model is removed.

STEP1: Mold Creation

The master model is fixed to a wooden frame and silicone is poured to create a mold.