Introduction
Saitama Prefecture in Japan boasts a thriving manufacturing and industrial sector, with a rapidly expanding Carbon Fiber Reinforced Plastic (CFRP) production sector. CFRP offers lightweight performance with incredible durability and structural strength, enabling its widespread application in automotive, aviation and high-performance sporting equipment.
In Saitama Prefecture, CFRP-related industries are leveraging technological innovations and advancements, contributing significantly to the local economy. In this column, we introduce the characteristics of CFRP, its utilization in Saitama Prefecture, and its future prospects.
What is CFRP?
Carbon Fiber Reinforced Plastic (CFRP)—a composite material composed from carbon fibers and resin—is heralded for its lightweight advantages, exceptional structural strength, and high corrosion resistance. These characteristics have attracted widespread attention in aerospace and automotive industries, where weight efficiency and structural integrity is critical for safety, fuel efficiency, and dynamic performance.
CFRP Industry in Saitama Prefecture: Current Status
Saitama Prefecture is gaining recognition as a CFRP production hub due to its strategic proximity to Tokyo—providing logistical and transportation advantages—and its strong concentration of manufacturing industries. The region demonstrates particular strengths in precision machinery, component manufacturing, and advanced composite-based product development, namely CFRP products. This enables local firms to act as key partners and suppliers of CFRP structures and components to the aerospace and automotive sectors.
Contribution to the Automotive Industry
The high concentration of automotive-related manufacturers, together with growing demand for lightweight vehicles, has rapidly accelerated CFRP adoption in the Saitama region. The remarkable advantages of CFRP-based body panels and structural components—reduced vehicle mass, improved fuel efficiency and enhanced driving performance—have promoted collaboration between local companies and major automotive manufacturers, leading to ongoing innovations and advancements in CFRP processing technologies.
Collaboration with Aviation and Aerospace Industries
Saitama Prefecture is also home to numerous aircraft manufacturers and their suppliers. CFRP plays a critical role in aircraft structures, particularly fuselages, where every unit of weight reduction, structural strength, and corrosion resistance yields significant improvements in fuel efficiency and operational performance. Saitama-based companies are actively engaged in development and supplying CFRP-based components to the aerospace industry.
Sporting and Industrial Applications
CFRP has become an essential material in a wide range of sporting goods and industrial products. Manufacturers in Saitama Prefecture are applying advanced composite molding technologies to produce high-performance bicycle frames, precision golf club components, and specialized medical equipment. CFRP’s unique characteristics—lightweight and durable—support improved performance, reliability, and advanced functionality in these industries.
CFRP Manufacturing Process and Technology
CFRP manufacturing is an advanced and complex process that integrates carbon fiber and polymer resin. Numerous companies in Saitama Prefecture are employing cutting-edge manufacturing technologies to produce high-quality CFRP products for demanding industrial applications.
Prepreg Technology
Prepregs refer to carbon fibers sheet that are pre-impregnated with precisely controlled amounts of pre-heated resin. The use of prepregs make it possible to efficiently manufacture highly uniform, high-performance CFRP products with minimal variability in strength and quality. Prepreg technology is widely used by CFRP manufacturers in Saitama Prefecture.
Autoclave Molding
Autoclave molding involves curing CFRP under controlled high-temperature and high-pressure conditions. This high-precision molding technology is widely used in aerospace and automotive industries. Saitama companies use autoclave molding systems for high-strength and precision CFRP components.
Resin Transfer Molding (RTM)
Resin Transfer Molding (RTM) is a molding technology whereby resin is directly injected in[翻H1.1]to a closed mold containing dry carbon fiber preforms. This method enables efficient production of large, high-strength components and is widely used in Saitama Prefecture for manufacturing automotive parts and large industrial machinery components.
Future Prospects for CFRP and Saitama
Technological innovations in CFRP manufacturing and applications are expanding its potential across diverse fields. Saitama-based companies are pursuing further advancements aimed at reducing environmental impact and lowering production costs. The local government is also actively promoting the industry and implementing initiatives that support CFRP-related research and development and encourage the introduction of new technologies.
Environmental Contributions
Growing global concern over environmental impact is expected to drive substantial demand for advanced materials like CFRP, whose lightweight properties contribute directly to improved fuel efficiency and reduced carbon dioxide emissions. In Saitama Prefecture, companies are actively introducing environmentally conscious manufacturing processes and developing recycling technologies for CFRP components.
New Material Development
In Saitama Prefecture, the development of next-generation reinforcing materials based on CFRP technology is advancing, delivering added potential for further weight reduction and enhanced durability. These advancements are expected to drive significant performance improvements across the automotive and aerospace industries.
Summary
Saitama Prefecture is gaining increasing attention as a hub for the automotive and aerospace industries utilizing CFRP technologies. Local companies are leveraging advanced composite—CFRP—technologies to expand applications and develop next-generation materials in the response to burgeoning and pressing global demand for lightweight, high strength, and environmentally efficient products. Continued technological innovation is expected to drive further expansion of local industries.
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ABOUT UCHIDA - 55 years since our founding
We leverage a wealth of technical expertise as a CFRP molding and processing manufacturer using FRP, GFRP, and CFRP materials. We offer a one-stop solution, encompassing design, analysis, manufacturing, secondary processing, assembly, painting, quality assurance, and testing.
UCHIDA's equipment
We have cutting-edge equipment to ensure that we can address even the most advanced challenges of our customers.
DMG森精機 - VS1000/40/2050
X軸：2,050mm（ストローク） ／ Y軸：1,000mm ／ Z軸：600mm ／ テーブル作業面：2,250×1,000mm
ASHIDA MFG Co., Ltd.
Autoclave Oven 2
Size : Ø1,150x1,000mm / Operating temperature : at normal temperature - 400℃ / Design pressure : 2.0Mpa (maximum working pressure) / Vacuum system : back suction system / Vacuum units : 5
ASHIDA MFG Co., Ltd.
Autoclave Oven 3
Size : Ø3,000x6,000mm / Operating temperature : at normal temperature - 200℃ / Distribution accuracy : ±2.5℃less / Heating rate : 4.0℃/min. (empty furnace) / Cooling rate : 4.0℃/min. (empty furnace) / Design pressure : 0.99Mpa (maximum working pressure) / Working pressure : 0.7Mpa less (if no specification from the manufacuturer 0.3Mpa around) / Pressure accuracy : ±0.02Mpa（for pressure setting of ０ - 0.99Mpa/cm²） / Boost pressure accuracy : 0 - 0.03Mpa/min / Pressure source : compressed air (regular use) / Vacuum system : back suction system / Vacuum units : 10
Oven
Size : W1,000xH1,000xD1,000mm / Temperature range : Environmental Temperature +20 - 300℃ / Temperature elevation capability : Environmental Temperature (20 - 40℃) - 300℃ / 45min less / Vacuum system : back suction system / Vacuum units : 10
ESPEC CORP.
Temperature & Humidity Chamber
INSTRON
Static Universal Testing Machine 5985
Oven
Size : W7,000xH3,000xD2,000mm / Temperature range : Environmental Temperature +20 - 300℃ (Max) / Temperature elevation capability : Environmental Temperature (20 - 40℃) - 300℃ / 60min less / Vacuum system : back suction system / Vacuum units : 10
NEO
X axis : 4,000mm (stroke) / Y axis : 2,000mm / Z axis : 1,200mm / C axis : 0° - ±270° / B axis : 0° - ±110° / Table working place : 4,000x2,000mm
【開発】
3Dプリンター | Markforged
Painting booth
Various painting, and clear finish is done in dedicated painting booth
Adhesion, Finishing, Coating Room
Finishing process, such as trimming, drilling, and bonding, surface treatment of the molded product type and is done in a private booth
Toshiba Matrixeye EX (Ultrasonic flaw detector)
Matrix-Arrey : 32
AMETEK CREAFORM Metra
SCAN750 Elite (3D scan)
Olympus Corp.
Inverted Microscopes
Oven
Size : W450xH450xD450mm / Temperature range : Environmental Temperature +20 - 650℃ / Temperature elevation capability : Environmental Temperature+50 - 650℃/120min less
Cutting Plotter Table working place : W1,500xL3,500mm
SHIMA SEIKI MFG., LTD
Cutting Plotter
KUKA
Robot
Krauss Maffei
Epoxy resin injection machine Resin 60L ／ Hardener 25L
Krauss Maffei
630t Press machine Height total 5,200mm ／ Length max 1,500mm ／ Width max 1,200mm ／ Whole cycle time per component part 240sec
DMG森精機 - NV5000B/40
X軸：1,020mm（ストローク） ／ Y軸：510mm ／ Z軸：510mm ／ テーブル作業面：1,320×600mm
Big sized clean room
JIS B 9920 cleanliness class maximum concentration (Pcs/m³） / Class 5 : 100,000m³ / Capacity : m² (16,000x16,000mm) 760m² (16,000x16,000x3,000mm) / Temperature and humidity condition : Temperature : 23℃±3℃, Humidity 65% less / Ambient conditions : Temperature 35℃ during summer, Humidity 70% less / Ambient conditions : Temperature 35℃ during summer, Humidity 70% less / Temperature -5℃ during winter, Humidity 40% less
CAD / CAM
CATIA V5 : 2 / THINK DESIGN : 1 / MASTER CAM : 4 / Other 3D/CAD : 3 / Other 2D/CAD : 5
Markforged - 3D Printer
Video Library
In the following video, we provide a detailed overview of our manufacturing process. Please feel free to watch and learn more.
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