TBM Protective Scraper used for tunneling driller
Gradient cutter ring can ensure that the edge of the cutter ring has a very high hardness HRC59-61, which can effectively resist the extremely harsh external working environment (i.e. the stratum with very high quartz sand content). At the same time, the hardness of the inner ring is HRC48-52, which can ensure excellent impact resistance, absorb external impact energy and prevent the breakage of the cutter ring. The hardness of the middle part is HRC53-59, with free transition and gradient. Change, so when we encounter a stratum with high quartz sand content, which requires both wear resistance of the knife ring and impact resistance of the knife ring, the advantages of this kind of knife ring are highlighted.
The tool ring and cemented carbide are fitted by interference, and the cemented carbide cylindrical teeth are pressed into the hole of the tool ring alloy by means of the pressure of the press. The spherical tooth hole of the tool ring holds the alloy cylindrical teeth tightly by the elastic deformation of the material, and the wear resistance of the cemented carbide is used to prolong the service life of the tool.
Quick Detail
| Product Name | Rings used for TBM Cutters |
| Product Specifications | 12, 14, 15, 17, 18, 19, 20 inches |
| Material | H13,HDG13,HDG13A,HTBM13,
HTBM13A |
| Colour | Metal primary color |
| Unit | Piece |
| weight | 28kg~36KG |
Specification
| Knife Ring Material | Applicable Stratum | Performance |
| Wear Resistance | Impact Toughness |
| H13 | More Stable Medium-Hard Subterranean Formation | General | Better |
| HDG13 | Harder Stratum With Greater Impact | Better | Well |
| HDG13A | More Stable Hard Formation | Excellent | Better |
| HTBM13 | Extremely Hard Stratum | Well | Excellent |
| HTBM13A | Very Hard Stratum With Less Impact | Excellent | Better |
Technical strength
Hunan Hedun Engineering Tool Co., Ltd. has 16 technicians, including 5 senior engineers, 3 senior technicians, 4 graduate students, and 4 engineers and technicians. It has formed a technical expert and is coordinated by technical personnel at all levels. Technical strength, experienced and skilled product design, machinery manufacturing, heat treatment, welding, assembly and quality management, on-site technical services and other engineering and technical personnel, with the independent research and development, design and manufacturing capabilities of shield cutters, according to The shield machine and geological conditions are designed quickly for you to manufacture high quality shield cutter products and provide excellent technical services to meet your shield construction requirements.
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