Taizhou Superdura Technology Co.,Ltd. offers all kinds of top hammer drilling bits, top hammer drilling rods, shank adapters and couplings for mining, quarrying and tunneling. Our products can meet extreme hard rock drilling need.
Whether the rock is hard or soft, you can always get the best option from us. For soft rock, you can get the most cost-effective couplings which are made of reasonable material. For hard rock, you can get the strongest couplings which are made of the best material in China.
If you need, you can also get customized products from us. Whatever you need, we will try our best to meet your demands.
Product Specifications:
| Left Thread | Right Thread | Diameter(mm) | Length(mm) | Weight(Kg) |
| R32F | R25F | 45 | 160 | 1.2 |
| R32F | R28F | 45 | 160 | 1.2 |
| R32F | R32F | 45 | 160 | 1.2 |
| R32F | T38F | 55 | 190 | 2.1 |
| T38F | T38F | 55 | 190 | 2.1 |
| T38F | T45F | 66 | 210 | 3.5 |
| T45F | T45F | 66 | 210 | 3.5 |
| T45F | T51F | 72 | 235 | 4.1 |
| T51F | T51F | 72 | 235 | 4.1 |
| T51F | T51F | 76 | 235 | 5 |
| R25F | R32M | 45 | 185 | 1.2 |
| R32F | T38M | 45 | 220 | 1.5 |
| T38F | R32M | 57 | 247 | 2.4 |
| T38F | T45M | 57 | 285 | 2.9 |
| T45F | T38M | 63 | 260 | 2.9 |
| T45F | T51M | 63 | 286 | 3.6 |
| T51F | T45M | 71 | 285 | 4 |
