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Seal replacement is one of the most critical maintenance tasks for any Tunnel Boring Machine. Worn seals lead to main drive failure, contamination of bearing systems, and costly downtime.
Depending on ground conditions and machine usage, main drive seals typically need replacement every 1-2 km of tunneling. Tail seals are consumed continuously and must be replenished.
Key indicators include: grease leakage, pressure drop in the main drive, contamination of lubricating oil, and increased power consumption.
OUSUN TBM supplies high-quality replacement seals for all major TBM brands at competitive prices.