Prototypes with the Precision of Final Products

Upon the culmination of your design journey, the natural progression leads to prototyping – an essential phase in materializing your concepts. This intricate phase involves the creation of functional models and design prototypes, collectively referred to as prototypes. These serve as tangible representations, bringing your concepts closer to reality.

Functional models transcend the traditional notion of prototypes. They are dynamic, embracing integrated moving components that mirror the operational essence of the envisioned final product. Contrasting with static display models, functional models are designed to rigorously validate performance, durability, and other pivotal parameters before embarking on large-scale production.

On the other hand, design prototypes meticulously ensure that the tactile qualities and weight mirror the very essence envisaged by the designer. It’s a meticulous quest to align the tangible attributes with the intangible vision, refining until harmony is achieved.

“Prototype” encompases a spectrum of processing methods. In the realm of ARRK, we converge a wealth of knowledge, technical prowess, and cutting-edge equipment to create prototypes that transcend mere mock-ups. Our expertise shines brilliantly in processes such as bonding, welding, bending, and polishing. It is here that ARRK’s journey towards precision and excellence truly shines. Our seasoned artisans, with years of mastery, deftly infuse their craft into every facet of these processes.

At ARRK, we specialize in converting design aspirations into tangible realities. Our prototypes are not mere stepping stones but reflections of the final product, meticulously honed to uphold the highest standards of quality and precision.

Harnessing In-House Excellence

ARRK’s prowess is rooted in our versatile facility that accommodates an array of prototype needs. Our internal infrastructure comprises a substantial 5-axis machining center capable of crafting large-scale models, including automobiles. For intricate components like lenses, we have a precision 5-axis machining center. Our robotic drilling systems, light stereolithography machines (3D printers), and a sizable vacuum deposition machine designed for 2-meter-class components are all part of our diverse arsenal. Notably, ARRK’s mastery in casting technology has earned us high accolades. This technique employs simplified silicon molds, proving ideal for crafting limited batches of prototypes.

But that’s not all. Our expertise spans a wide spectrum of processing techniques: painting, printing, sewing, and electrical work, to name a few. Our organization is meticulously structured to cater to your distinct requirements. Take car seats, for example – we provide a comprehensive suite of services from framing and cushioning to mold-making and sewing. All of this is conducted using tailored methodologies, uniquely attuned to material properties, unified under the ARRK umbrella.

Our material proficiency is equally diverse. A standout instance involves a manufacturer’s endeavor to design an aluminum die-cast car carrier. Despite facing numerous rejections and contemplating a pivot to pipe framing, ARRK’s ingenious approach introduced viable resin materials and techniques. This pivotal intervention not only realized the product’s exceptional design but facilitated its successful commercialization. At ARRK, we thrive on innovation and resourcefulness to transform challenges into triumphs.


We had the opportunity to work on the concept model of a hydrogen cassette tank developed by Teijin Engineering Co., Ltd.
ARRK provides support to our customers in design, engineering, and prototyping. This involves a portable power generation device that uses hydrogen, which is gaining attention as the next-generation energy source. Fuel cells like this one are expected to find applications in various fields in the future.
We had the privilege of working on the concept model for the fuel cell unit developed by Teijin Corporation and the pressure container unit for supplying hydrogen.
ARRK provides support to our customers in design, engineering, and prototyping. This involves a portable power generation device that uses hydrogen, which is gaining attention as the next-generation energy source. Fuel cells like this one are expected to find applications in various fields in the future.
Long-term partnerships create true added value and ongoing benefits for our customers.
SENSOFAR is a leading company in measurement and medical equipment, located near Barcelona, Spain, which is a hub for technology. The SENSOFAR Group is a multinational corporation with a mission to develop, manufacture, and commercialize high-end measurement tools. They also provide consulting services in the field of measurement, and they are known for their advanced technology, reliable quality, and high-quality customer service. SENSOFAR has cooperative partners in over 30 countries and has its own offices in Germany, the United States, China, and Taiwan.
Transfer support robot Hug L1
ARRK assisted with the design of FUJI Corporation's transfer support robot, Hug L1. This robot is designed to support movements between seated positions, such as transferring from a bed to a wheelchair or a wheelchair to the restroom, as well as assisting with standing in dressing rooms in caregiving settings.
JTEKT Corporation
ARRK provided total support, from redesigning existing products to design, prototyping, and mass production, for J-TEKT's power assist suit "J-PAS LUMBUS." This suit is designed to reduce the burden on the lower back in various work environments and features control technology developed by J-TEKT in electric power steering, along with a mechanism that can harmonize with human movement, allowing it to adapt to a wide range of tasks.
JTEKT Corporation
This is a self-propelled training robot designed with the aim of improving walking ability and extending healthy lifespan. It offers three modes「Arm Swing Training」「Resistance Training」「Assisted Walking」allowing users to choose the most suitable training based on their level of independence and daily physical condition. We assisted in the design, engineering, and prototyping of this product.
Nishimatsu Construction Co., Ltd.
The Corocoro Checker® is a robot that travels along the cables of cable-stayed bridges, capturing and recording a 360° exterior view of the cables for visual inspection. ARRK was responsible for the redesign of the existing machine. We proposed a solution that addressed the challenges and achieved development cost savings while ensuring the inspection performance of the current machine, ultimately leading to its manufacturing.
Contact us