A pipe that simultaneously achieves a beautiful "extremely small bending radius" and strict "press-fit outer diameter tolerance of 15 to 30 μm," enhancing layout flexibility for water-cooled inverters and motors.
Improvements can be made to the restrictions around pipes that hinder flexibility during the layout of vehicle-mounted inverters and motors. Additionally, eliminating issues caused by welding joints and achieving high press-fit outer diameter tolerances can enhance quality. Bending: Bending center R = 0.75D (Min) Press-fit: Tolerance range = 15μ (Min) Flattening: Cross-sectional area reduction rate = 13% (Min) Example of minimal R bending achievements: Φ25.4 × t1.6 CR20 = 0.8D Φ17.0 × t1.2 CR13 = 0.76D *CR = Bending center R *0.6D is also possible under certain conditions "Press-fit outer diameter tolerance" Proven record of guaranteeing a range of 15μ after surface treatment By reducing the restrictions on piping layouts for units that require liquid cooling, it also contributes to a reduction in pressure loss.
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basic information
Bending: Bending center R = 0.75D (Min) Press-fitting: Tolerance range = 15μ (Min) Flattening: Cross-sectional area reduction rate = 13% (Min) Minimum bending R applicable range *Material: STKM, SUS, Al, etc. Outer diameter 6-18 = Plate thickness t0.6-1.2 Outer diameter 20 = Plate thickness t1.4 Outer diameter 22 and above = Plate thickness t1.6 *Applicable for outer diameters 6Φ to 31Φ *Conditions vary depending on outer diameter, plate thickness, and shape.
Price range
Delivery Time
※The delivery time may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
Material: STKM11A Material Strength: 380N/mm² or more Outer Diameter: 10Φ Plate Thickness: t1.0 Bending Radius: R12 Interference Fit Tolerance: 15μ (after surface treatment) Surface Treatment: Zinc-nickel plating of 10μ or more Usage Location: Oil valve
Detailed information
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Production examples Oil level gauge / ATF level gauge Cooling and lubrication joint piping
Company information
Founded 91 years ago as "Yashima Automobile Parts Trading Company," our company originated from the automotive parts division of Yashima Motor Co., which was the general importer of Chrysler vehicles in 1926. Over the years, we evolved from supplying repair parts to directly providing mass-produced components to automobile manufacturers, in line with the pre-war and post-war trends of domestic automobile production. At the time of our establishment, the Toranomon area was referred to as Japan's Detroit, yet there were almost no domestic vehicles present, and we had been engaged in automotive-related business even before the domestic production of automobiles began. Today, we have transformed and grown into a technical trading company that directly supplies and sells mass-produced parts to major automobile manufacturers and construction machinery manufacturers. We support the development departments of manufacturers with technical proposals and assist the procurement departments with global parts sourcing, providing mass production solutions for a wide range of products, from resin molded products, semiconductors, electronic components, and sensors to inverters and onboard motors that make up electric vehicles. Notably, the next-generation onboard electrification components have significantly increased, with mass production sales reaching an annual scale of 6 billion yen.
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