TBM Protective Scraper used for tunneling driller
TBM Spare Parts 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 |
TBM Spare Parts 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 |