セイエン List of Products and Services

It is a projection welding technology with high airtightness (patent pending). It can be applied to the joining of pressure piping and is proposed as an alternative technology to conventional brazing. The key points of the alternative proposal include cost reduction through shortened takt time due to instant welding, as well as simultaneous reduction of CO2 emissions since high-temperature brazing is not required. It has already been delivered to multiple automobile manufacturers and is a highly reliable technology.

• Engine parts
• Fuel system parts

We have manufactured over 200 million high-precision pipe components to date. Our pipes are primarily used in the automotive industry to support daily safety and security in various locations. At R-Bending.com, we have received positive feedback from customers regarding cost reduction in high-precision R-bending pipe processing, particularly for small diameters ranging from Φ5 to 30mm. Five reasons why R-Bending.com can achieve cost reduction: 1. Automated equipment that mass-produces 800,000 high-precision pipes per month. 2. Material cost reduction and weight reduction through ultra-small R bends. 3. Process shortening and high-precision pipe processing achieved through integrated plastic deformation. 4. Cost reduction proposals based on a track record of 200 million units. 5. Comprehensive support from mold design to pipe manufacturing.

• Engine parts

It is optimal for areas where there are interfering objects nearby and where handling is difficult with "pipes of general curvature." Compared to taking a detour with pipes of general curvature, "ultra-small R bend pipes" take the shortest route. The overall path, including the pipe body and the counterpart hose, becomes shorter, allowing for material reduction and weight savings. 【Features】 ○ Superior strength, leak resistance, precision stability, and corrosion resistance. For more details, please contact us or download the catalog.

• Engine parts

At Seien Co., Ltd., we have achieved mass production of pipe products such as "extremely small R bends with a bend radius of R0.7D," which were traditionally considered difficult, and "pipe products with an outer diameter processing accuracy of 0.03mm through swaging," based on the plastic processing technology we have cultivated over many years. We have received high praise from everyone. Moving forward, we will continue to focus on further research and development and enhancing our facilities, aiming to develop new products while actively challenging other industries. 【Main Products】 ○ Pipes ○ Tubes ○ Unions ○ Hose Connectors For more details, please contact us or download the catalog.

• Other machine elements