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Frictinal Kelly Bar
Deep frictional kelly bar for soft soil/silt. Simple operation, custom non-standard designs & independent R&D.
Description
Model List
| Type | Outer pipe diameter | No.oftubes*leng per section | Driling depth |
| Ф377-4*14 | Ф377mm/Ф1’3″ | 4*14/4*45’1 “ | 52m/170’7.2″ |
| Ф440-5*15 | Ф440mm/Ф1’5″ | 5*15/5*45’5″ | 70m/229’8″ “ |
| Ф470-6*15 | Ф470mm/Ф1’6.5″ | 6*15/6*45’5″ | 83m/272’3.7″ |
| Ф508-6*16 | Ф508mm/Ф1’8″ | 6*16/6*52’6″ | 89m/291’12” |
| Ф530-6*18.7 | Ф530mm/Ф1’8.9″ | 6*18.7/6*61’4″ | 110m/360’10.7″ |
| Ф580-6*18.7 | Ф580mm/Ф1’10.8″ | 6*18.7/6*61’4″ | 110m/360’10.7″ |
Feature
Friction-type drill pipe is a type of drill pipe whose external keys consist of three or six wear-resistant straight bars without large concave pressure platforms. This drill pipe generates pressure through the circumferential force produced during rotation and the friction created when the drill head applies downward force. It is simple to operate, allows for deep drilling, and is suitable for soft soil or sandy silt layers.
Customizable Items
According to customer requirements, we can customize non-standard products based on provided drawings or samples, while also possessing independent R&D and production capabilities for new product development
