Video
Video
Overview
Core Competencies
Purpose
To enhance the electrical reliability and air quality in underground railway systems by replacing manual cleaning processes with an automated, remotely controlled high-pressure cleaning system that removes contaminants from conductor rails, insulators, tunnel walls, and floors.
• Multi-nozzle system(carbon dust, metal, fine contaminants)
• Adjustable pressure for different surfaces
• Stand-alone or modular unit loadable onto wagons/trolleys
• Designed within clearance limits for safe operation on live tracks
• Real-time control & cleaning pattern setup
• Performance feedback & status monitoring
• Compact design (tunnel clearance, rail geometry)
• Waterproof, dustproof(IP-rated), vibration-resistant
Expected Benefits
Labor Cost Reduction
– Fewer personnel needed
Reduced Maintenance Time
– 4× faster, 70% less time
Efficient Nighttime Operation
– Optimized short maintenance windows
Long-Term Savings
– Lower costs, quick ROI
Minimized Service Disruption
– Prevents delays & penalties
Certifications
Validated on active service line -
Daejeon Metro,
Seoul Subway Line 7
Vehicle Type Approval -
Seoul Subway Line 7
TRL 9
Fully developed and ready for immediate operation in actual service environments
Development of T-Bar Automatic Washing System for Daejeon Metro (2020) / for Seoul Metro (2022)
Development of Third Rail and Floor Automatic Washing System for Sillim Line (2024)
Development of Third Rail and Tunnel Automatic Washing System for Gimpo Gold Line (2025)
Contact
Korea Railroad Research Institute (KRRI)
Global Business Department
Dr. Cheolmin Park
E-mail: cmpark@krri.re.kr