谐波减速器：人形东风助力国产化进程

Industry Rating - The industry investment rating is maintained as "Outperform the Market" [1] Core Viewpoints - The report is optimistic about the opportunities for domestic production in the harmonic reducer industry, particularly with the expected growth in humanoid robots [2][23] - The current market is dominated by Japanese manufacturers, with Harmonic Drive holding over 80% market share, but the expiration of patents and increased demand for humanoid robots may accelerate domestic replacement [2][10][23] Summary by Sections Harmonic Reducer Overview - Harmonic reducers are compact, lightweight, and powerful transmission structures used primarily in humanoid robots [2][4] - The market is currently led by Japanese companies, particularly Harmonic Drive, which excels in gear design, flexible wheel materials, and manufacturing processes [2][7][10] Market Dynamics - The harmonic reducer market is concentrated, with Harmonic Drive holding a market share of over 82% as of 2020, while domestic players like Green Harmonic hold about 7% [10][13] - The report highlights the technological advantages of Japanese products in terms of size, weight, and lifespan compared to domestic alternatives [13][14] Domestic Opportunities - Domestic companies are developing unique gear designs to circumvent patent barriers, with notable advancements from companies like Green Harmonic and Zhejiang Laifu [25][27] - The report anticipates that the expiration of key patents will lower technological barriers, allowing domestic manufacturers to enhance their market presence [25][27] Investment Recommendations - The report recommends focusing on the entire supply chain of harmonic reducers, highlighting specific companies such as Green Harmonic, Keda Li, and Slin [2][29] - It suggests monitoring companies involved in flexible wheel materials and processing, such as Xianglou New Materials and Jindi Co., as well as those focused on rigid wheel components like Henggong Precision [29]