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scallop knife

It is positioned at the front of the cutter head, specifically for cutting sand and gravel.

Classification :

Scallop Knife

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Product Details

Keywords: Tuoda Engineering Equipment

A shell-shaped cutter is essentially a pre-cutting cutter. When a shield tunneling machine passes through sandy gravel strata, especially those with large-diameter gravel, if a roller cutter is used, the loose soil will deform significantly under the pressure of the roller cutter, greatly reducing the cutting effect of the roller cutter, and sometimes even losing its cutting and crushing ability. It is arranged at the front of the cutterhead, specifically for cutting sandy gravel.

The configuration of soft soil tools is crucial in the design of shield machines and pipe jacking machine tools. Whether the configuration is suitable for the geological conditions of the application project directly affects the service life, cutting effect, soil discharge, excavation speed, and construction efficiency of the shield machine's cutterhead. Soft soil tools are the main tools on the cutting excavation surface of the shield machine. Cutting tools are used to excavate non-rocky or soft soil geology, sand, gravel, and loose clay strata with particle sizes less than 400 mm. TuoDa's technical team custom designs the most reasonable tools for each customer's needs and geological conditions.

TuoDa has established a scientific and reasonable manufacturing process for the production and processing of soft soil tools. The tool manufacturing process is the key to controlling tool quality.

TuoDa's production process uses: integral forging ~ integral heat treatment ~ silver brazing cemented carbide, resulting in products with higher reliability and good wear resistance.

The shell-shaped cutter is essentially an advance cutter. When a shield machine passes through sandy gravel strata, especially large-particle-size sand and gravel strata, if a roller cutter is used, due to the loose soil debris, large deformation will occur under the extrusion of the roller cutter during excavation, greatly reducing the cutting effect of the roller cutter, and sometimes even losing its cutting ability

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