Coverage of JEAE EXPO 2026 NAGOYA.”
In the development of electric vehicles, the trend toward higher component density is advancing rapidly, and the importance of functionally integrated products that make effective use of limited layout space is growing.The “resin pipe with integrated baffle” presented by Daikyo Nishikawa for EVs can be described as a brilliant optimal solution that leverages the company’s expertise in resin processing—one of its core strengths. We explore the design philosophy behind this product, which directly addresses challenges within the E-AXLE.
“Pipe Resinization” and “Integration of Baffle Functions” Made Possible by Our Proprietary Technology
With the electrification of mobility, there is a constant need to reduce the number of parts and achieve weight reduction.In response to these market demands, Daikyo Nishikawa focused on the internal structure of the E-AXLE. The company has succeeded in replacing the oil passage pipes—which were previously often composed of separate parts—with resin components, while also integrating a baffle function to control the sloshing of gear oil.
This integration of functions, made possible by leveraging the company’s advanced technology, represents a major breakthrough in making effective use of extremely limited layout space.
A wide range of specifications and exceptional adaptability to a broad spectrum of mobility solutions
Another major strength of this product is its flexibility. It can accommodate a wide range of pipe specifications, including longer lengths, bellows-type configurations, and even double-pipe configurations. Furthermore, it is designed to support a variety of mounting options for attachment to the vehicle body.
This outstanding versatility makes it easy to apply the technology to a wide range of mobility solutions that meet future, diversifying needs, without being constrained by specific packaging requirements. It is likely to significantly increase engineers’ design freedom as vehicle designs become more complex.
Guarantees “peace of mind” with quality and durability on par with conventional products
When introducing new materials or integrated technologies, the primary concern for those on the front lines is reliability in actual operation. However, according to the company, this product is in no way inferior to conventional metal or separate-component parts in terms of quality and durability, and it meets the standards required for confident adoption.
The fact that the E-AXLE achieves bold functional integration while ensuring high reliability within its harsh operating environment demonstrates the solid craftsmanship and advanced technical capabilities unique to Japanese manufacturing.
Integrated functionality, flexibility in meeting specifications, and proven durability. The “Resin Pipe with Integrated Baffle” clearly demonstrates how Daikyo Nishikawa’s resin technology fundamentally supports the evolution of electric vehicles (EVs).
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