【日本が負けた？】レール削正車などの保守車両が海外からの輸入車両な理由【ゆっくり解説】

The rail grinding machines that spark on the tracks late at night, and the multiple tamper (Multi-Tamper) that compacts the ballast track—did you know that almost all of these specialized vehicles supporting Japan's railway infrastructure are actually "European-made" by companies like Plasser & Theurer and Speno? Even the latest machines (such as the Lobel ROMILL 600) introduced by Kintetsu and Keihan in 2026 at a cost of over a billion yen are without exception made by overseas manufacturers. "Why can't Japan, a technological powerhouse, domestically produce track maintenance vehicles?" This video thoroughly explains the three harsh truths that forced domestic manufacturers like Shibaura Seisakusho to withdraw: "low demand," "a 70-year technological gap," and the absolute "patent barrier." However, there's no need to despair. In the latter half of the video, we reveal the true nature of the uniquely Japanese "extraordinary craftsmanship" that elevates overseas-made machinery to the world's best on-time performance rate—an average delay of less than one minute on the Tokaido Shinkansen. What is the intuition of track maintenance workers who can detect loose bolts by the sound of a hammer, and what is the safety culture on site that maximizes the characteristics of milling and grinding tools? We will unravel the behind-the-scenes secrets that are a must-see for railway fans. [Related video you absolutely must watch next] TX's 8-car train conversion is taking too long, users say "It's packed every morning..."    • 【工事10年？】TXの8両編成化に時間がかかりすぎで利用者「毎朝満員なんだよ…」【ゆ...   ▶︎Uniqueness of this channel This channel creates content by extracting questions about railway-related themes from viewers and general users. Specifically, we check Yahoo! Answers, social media such as X and Instagram, and comment sections of railway-related news articles to extract topics that the general public is curious about or is interested in. Based on that, we conduct our own research using official railway company documents, publicly available information, and press releases, organize the facts, and then create scripts by adding our own analysis. Since accuracy is our top priority when dealing with the history, systems, and operational mechanisms of railways, there may be instances where factual information overlaps with that of other commentators. However, this is not content reuse; rather, it is the result of research based on publicly available documents and primary sources, and is a policy to prevent viewers from being misled by unfounded interpretations or misinformation. ▶︎Educational Value of This Channel This channel aims to help viewers gain a deeper understanding of railways by explaining railway operational structures, equipment, safety measures, and historical background step by step. Railways are a public infrastructure used daily by many people, and understanding their mechanisms leads to safe use and an understanding of proper etiquette. Furthermore, by explaining basic information in a step-by-step manner so that even those without specialized knowledge can understand, we provide educational value not only to railway enthusiasts but also to general users. ▶︎Material Usage and Rights Considerations The images and video materials used in the videos are mainly royalty-free materials based on their terms of use. However, in cases where actual photographs are necessary to enhance the accuracy and documentary value of the explanation, we contact the personal blog operators and social media posters (X, Instagram, etc.) directly and only use materials for which we have obtained permission. While we take the utmost care in production, if there are any inaccuracies or problems in the video content, please contact us so that we can promptly remove it. Contact Information↓ [email protected] ▶︎Materials Used Sound Effects: Pocket Sound - @pocketse ▶Table of Contents 00:00 The Harsh Reality and Critical Points of "Track Maintenance" Supporting Railways at Night 04:08 [How the Multiple Tie Tamper Works] The Principle of How a Multiple Tie Tamper Repairs Ballast Track 06:42 Why Do Rail Grinding Vehicles Spark? Two Methods to Prevent Wavy Wear 10:03 Three Reasons Why There Are No Japanese-Made Track Maintenance Vehicles (Demand, European Strategy, Patent Barriers) 15:29 Even Plasser Was Amazed! The Japanese craftsmanship that creates the punctuality of the Tokaido Shinkansen 19:34 Imported track maintenance machinery and Japan's railway safety culture that can never be exported #railwaytrackmaintenance #trackmaintenancemachine #railgrindingmachine