BYD(SZ:002594) Feng Huang Wang·2025-12-04 07:55Core Viewpoint - Hubei Hangte Equipment Manufacturing Co., Ltd. has launched an innovative all-aluminum one-piece low-pressure casting chassis, which is expected to redefine industry technical standards [1] Group 1: Technology and Innovation - The new chassis technology overcomes the process limits of ultra-large thin-walled structural components, achieving a projection area of 4.2 square meters and a wall thickness range from 4 mm to 50 mm in a single casting [1] - Traditional all-aluminum chassis are typically assembled from dozens of parts through welding and riveting, leading to complex processes and high costs, with connection points often being weak links in structural rigidity and safety [1] - The one-piece cast aluminum chassis simplifies the structure from multiple assembled parts to a single integrated casting, enhancing overall structural stability and safety [1] Group 2: Industry Adoption - The technology has been first applied in BYD's high-end model Yangwang U8L Ding Shi version [1] - The advantages of integrated die-casting include weight reduction, cost savings, and improved production efficiency, making it a sought-after technology among current electric vehicle manufacturers [1] - Tesla's Model Y utilizes integrated die-casting for its front cabin and rear floor, reducing the number of parts from 171 to 2 and cutting over 1600 welding points [1] - Xiaomi's SU7 rear floor also employs large die-casting technology, reducing parts from 72 to 1 and decreasing welding points by 840 [1]