TBM Cutting Tools & Spare Parts

Highly Reliable Design for Handling Complex TBM Construction Environments

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Scrapers & Related Components

Product Highlights

Xinda scrapers and related components are designed for soft ground and mixed-face shield tunneling conditions. They serve as key cutting elements on the cutterhead, responsible for large-area scraping, soil removal, and material conveying.

Based on long-term understanding of ground behavior and cutterhead load characteristics, Xinda optimizes scraper geometry, cutting angles, and wear-resistant layouts to ensure stable cutting performance in high-water-content, highly plastic, and weakly cemented soils. This design effectively reduces abnormal wear and frequent replacement, providing continuous, controllable front-end support for shield TBM excavation.

Product Configuration

Performance Advantages

Stable Cutting, Lower Cutterhead Load

Optimized scraper geometry ensures material removal is dominated by scraping rather than excessive compression, reducing cutterhead resistance and vibration.

High-Strength, Impact-Resistant Body

High-strength steel construction balances strength and toughness, maintaining structural stability under complex and eccentric loads.

Wear-Resistant Reinforcement, Longer Service Life

Key wear areas are reinforced with wear-resistant alloys to slow abrasion in sandy and abrasive ground, extending service intervals.

Configurable for Variable Ground Conditions

Scraper profile and alloy layout can be adjusted to balance cutting efficiency and tool life across different strata.

Product Parameters

Application

Suitable for soft-ground and mixed-ground shield machines, compatible with various cutterhead structures.
Widely used in metro tunnels, utility tunnels, municipal pipelines, urban tunneling, and water conveyance projects.
Available as complete cutterhead scraper sets or individual replacement components to support maintenance and upgrades.