机械设备行业周报人形机器人丝杠走向量产，国产丝杠领跑全球

Investment Rating - Investment rating: Positive (maintained) [3] Core Viewpoints - The humanoid robot's lead screw is the highest value core hardware, with domestic lead screw manufacturers leading globally [2][4] - The market for lead screws in humanoid robots is expected to expand significantly, with Tesla's contribution potentially increasing the market from several hundred million to 25.2 billion [17][24] - The first large-scale production project for lead screws has been launched, indicating a competitive advantage for domestic manufacturers [18][38] Summary by Sections 1. Lead Screws: The Highest Value Core Component of Humanoid Robots - Lead screws are crucial for converting rotational motion into linear motion, accounting for about 20% of the total cost of humanoid robots [48] - The precision of lead screws is a core technical challenge, with C5 precision being necessary for humanoid robots [17][54] - The market for lead screws is expected to grow as domestic manufacturers increase their penetration rates [26][53] 2. Major Production Projects for Humanoid Robot Lead Screws - Domestic lead screw companies are well-positioned for mass production, with the first large-scale production project initiated by Xinjian Transmission [18][40] - Three categories of companies with foundational lead screw technology include long-established lead screw firms, precision tool manufacturers, and other precision processing companies [41][66] 3. Investment Recommendations - Beneficiary stocks include lead screw manufacturers such as Wuzhou New Spring, Zhenyu Technology, Nanjing Chemical Fiber, and Shuanglin Shares [18][66] - Companies involved in lead screw equipment and tools include Zhejiang Haideman, Jizhi Shares, Qin Chuan Machine Tool, Hengfeng Tools, and Huarui Precision [18][66]