The construction 3D printing technology of Polyuse Inc. (Head office: Minato-ku, Tokyo; Representative Directors: Takuya Iwamoto / Wataru Ooka; hereinafter "Polyuse") has been used on construction sites, mainly in public works, since its first use in Japan on an MLIT-administered project in January 2022, and the cumulative number of projects has now surpassed 300.
Since its founding in 2019, Polyuse has consistently held up "construction in which people and technology coexist" as its corporate vision, and has carried out comprehensive research and development and real-world deployment of Japanese-made construction 3D printing technology, with the aim of helping to address the construction industry's labor shortage, aging social infrastructure, disaster recovery and more.
In addition, the number of installed units of Polyuse One, our mass-production model launched in September 2025, has reached 40. We will continue to build an environment in which construction 3D printing technology can be accessed from anywhere in Japan, and plans are under way to install 100 units nationwide within FY2026.
■Features of Construction 3D Printing Technology
The construction 3D printing technology developed by Polyuse manufactures concrete structures and formwork by additively printing a dedicated mortar material, layer by layer, based on 3D drawing data. The technology eliminates materials and processes that are otherwise essential to producing concrete structures, such as formwork, with the aim of improving on-site productivity through labor savings and shorter construction periods.
■Construction Examples
Construction 3D printers enable faster construction with fewer workers than before and are especially effective on projects with tight schedule constraints. Polyuse holds a share of more than 90% of 3D printer construction in Japan, centered on public works (*1), and handles a wide variety of construction, including gravity retaining walls and coping concrete.
*1 Survey by the Japan Society of Civil Engineers, as of December 2024
For further reference materials on construction case studies and the effects of construction 3D printers on actual projects, please fill in the required information in the form below. We will review your submission and then provide the materials.
Request the Construction 3D Printer Case Study Collection
■On-Demand Video
We offer an on-demand video that explains the basics of construction 3D printers, covering their technical features, actual construction scenes, their effects and more.
It answers questions such as "Can a 3D printer really make concrete structures?", "Is the strength sufficient?" and "Where is it actually being used?"
○What You Will Learn from the Video
What is a construction 3D printer?
What is the "third option" after cast-in-place and precast (factory production)? We explain the specifications of the Polyuse One construction 3D printer and the structures produced with it.
Over 300 projects nationwide
We explain specific construction scenes and their effects at familiar civil engineering and building sites across Japan, including catch basins, retaining walls and stairs.
How to get started and schedule
You can consult us with just drawings, sketches or site photos, and we have delivered in as little as one week. We walk you through the full process from consultation to delivery in detail.
Polyuse provides end-to-end support for using construction 3D printers, from the initial consultation through 3D data creation, printing of structures and quality checks to construction.
So that even those new to 3D printer construction can adopt it with confidence, we draw on our extensive construction track record and know-how to propose the best way to use it for each customer's challenges and site conditions.
In addition, leveraging our construction network that is expanding across Japan, we are driving the real-world deployment of construction 3D printers by working alongside our customers from the planning and design stages through to construction. If you are considering a construction project or adopting the technology, please feel free to contact us.
■Careers
As we are in a phase of business expansion, we are stepping up hiring across multiple roles.
In addition to technical roles in hardware, software and materials related to construction 3D printers, Polyuse is recruiting for sales roles that support the adoption and operation of construction 3D printers.
We are a team in which technology and business work together across boundaries, tackling on-site challenges head-on to "create a new future together" for the construction industry.
For details, please see our careers page.
.png&w=3840&q=75)
.png&w=3840&q=75)