东吴汽车黄细里团队·2025-07-13 09:16Core Viewpoint - The trend of lightweight humanoid robots is becoming increasingly prominent, with a focus on raw materials and process design to address issues such as insufficient endurance, low flexibility, and poor heat dissipation [2][7]. Group 1: Lightweight Trend in Humanoid Robots - The lightweight trend is evident from the perspective of downstream manufacturers, with notable reductions in weight across various models, such as the 20 kg reduction in the UBTECH Walker C and the 10 kg reduction in Tesla's Optimus from Gen 1 to Gen 2 [13][21]. - Lightweight solutions can resolve critical issues for humanoid robots, including enhancing flexibility and extending battery life, as demonstrated by a 40% weight reduction leading to a 6-hour operational time for certain models [21][17]. Group 2: Material Replacement and Cost Efficiency - Magnesium alloy is highlighted for its superior weight reduction capabilities compared to aluminum, with current prices favoring magnesium, making it a cost-effective choice [3][35]. - The semi-solid process addresses the corrosion resistance of magnesium alloys, which is crucial for humanoid robot components that are lighter than automotive parts, thus lowering barriers to entry [3][35]. Group 3: High-Performance Engineering Plastics - The shift towards high-performance engineering plastics like PEEK, PPS, and PPA is opening new market opportunities, with PEEK being particularly suitable for high-value applications in humanoid robots [4][75]. - The market value ranking for these materials indicates that PEEK has the highest potential, followed by PPA and PPS, with the humanoid robot sector expected to generate a market space in the billions [4][75]. Group 4: Investment Recommendations - Key companies to watch include leading magnesium alloy die-casting firms such as Baowu Magnesium and Xingyuan Zhuomai, as well as humanoid robot lightweight joint component manufacturers like Xusheng Group [5][62]. - Attention should also be given to leading engineering plastic companies such as Zhaomin Technology, Water Co., and Zhongyan Co. [5][62].