Single disc cutters are designed for efficient rock breaking in hard and intact formations such as granite and basalt. With optimized material composition and heat treatment processes, Qingyue disc cutters deliver excellent wear resistance, toughness, and reliability, ensuring stable performance in demanding tunneling conditions.

Specifications

Key Advantages

✔ High Penetration Efficiency

Optimized cutter ring design ensures effective rock breaking and faster advance rates.

✔ Excellent Wear Resistance

Advanced alloy steel and heat treatment provide long service life even in abrasive conditions.

✔ Strong Structural Stability

High-strength body and bearing system ensure reliable performance under heavy load.

✔ Reduced Maintenance Cost

Longer lifespan and stable performance reduce replacement frequency and downtime.

Double disc cutters are specifically designed for complex geological conditions where rock is fractured, jointed, or uneven. Compared to single disc cutters, the dual-ring structure distributes impact loads more evenly, significantly reducing uneven wear and improving overall service life. Qingyue double disc cutters ensure stable excavation performance and consistent penetration rates in challenging ground conditions.

Specifications

Key Advantages

✔ Reduced Uneven Wear

Dual cutter rings distribute loads evenly, minimizing localized wear.

✔ Longer Service Life

Up to 30% longer lifespan compared to single disc cutters.

✔ Stable Cutting Performance

Maintains consistent penetration in fractured and complex rock formations.

✔ Lower Maintenance Frequency

Fewer replacements reduce downtime and operational costs.

Center Twin disc cutters are specifically designed for installation at the center of the cutterhead, where rotational speed is low and slippage is high. In this position, conventional disc cutters often suffer from severe wear and reduced efficiency. The twin disc cutter addresses this challenge by providing improved cutting stability and enhanced wear resistance. Qingyue twin disc cutters are engineered to ensure reliable performance and long service life in hard rock tunneling conditions.

Specifications

Key Advantages

✔ Designed for Low-Speed Conditions

Maintains effective cutting performance even under low rotational speed.

✔ Enhanced Wear Resistance

Special coatings (e.g., tungsten carbide) reduce abrasive wear.

✔ Improved Cutting Stability

Optimized structure ensures stable performance in the cutterhead center.

✔ Extended Service Life

Reduces premature wear and replacement frequency.

Soft Ground Cutters are designed for TBM excavation in soft ground and mixed ground conditions, including clay, silt, sand, gravel, and weathered formations.

These cutters play a critical role in improving cutting efficiency, maintaining face stability, and reducing wear during excavation. Qingyue provides a range of soft ground cutter solutions, including scraper cutters, ripper cutters, and customized designs to meet different project requirements.

Key Features

✔Optimized for Soft & Mixed Ground

Suitable for clay, silt, sand, gravel, weathered rock, and mixed formations.

✔High Wear Resistance

Manufactured with high-quality alloy materials to ensure extended service life under abrasive conditions.

✔Customized Design

Available in various sizes, configurations, and mounting types according to TBM requirements.

✔Reliable Performance

Designed to maintain stable cutting efficiency and reduce maintenance frequency during tunneling operations.