Friction Kelly Bar
The friction kelly bar generates pressure through friction from wear-resistant strips, offering simple operation and deep drilling depth. Suitable for soft soil, clay, and loose sand geological conditions. Available in 3-6 sections, diameter 355-630mm, with a maximum drilling depth of up to 130m.
立即询价技术参数
| 参数 | 数值 |
|---|---|
| Outer Diameter | 355-630 mm |
| Sections | 3-6 sections |
| Max Depth | 130 m |
| Material | Imported High-Strength Steel |
| Warranty | 1 year |
| Weight | 5-31 T |
核心特性
常见问题
The friction kelly bar transmits pressure through wear-resistant strips, offering simpler operation and deeper drilling (up to 130m). The interlocking kelly bar uses mechanical locking for higher torque, ideal for hard rock formations.
Suitable for soft soil, clay, and loose sand conditions, where it achieves high drilling efficiency with simple operation.
Regularly inspect wear strip conditions, keep the pipe body clean, ensure drive keys are undamaged, and apply anti-rust treatment during storage.
