drill pipe
It is specially suitable for engineering and geology prospecting.
Our drill pipe can be made of material of D40,D50(standard of china )R780e.g.
It is specially suitable for engineering and geology prospecting.
The specification rank from Φ42 to Φ89.
We also offer processing by sample and design.
Q-series chinese standard
Model | Hole diameter | Core diameter | Bit | Reaming shell | Outer core barrel | Inner core barrel | rod | ||||
OD | ID | OD | ID | OD | ID | OD | ID | ||||
BQ | 60 | 36.5 | 59.5 | 36.5 | 60 | 57.2 | 46 | 42.9 | 38.1 | 55.6 | 46 |
NQ | 75.7 | 47.6 | 75.3 | 47.6 | 75.8 | 73 | 60.3 | 55.6 | 50 | 71 | 60 |
HQ | 96 | 63.5 | 95.6 | 63.5 | 96 | 92.1 | 77.8 | 73 | 66.7 | 89 | 77.8 |
PQ | 122.6 | 85 | 122 | 85 | 122.5 | 117.5 | 103.5 | 95.3 | 89 | 114.3 | 101.6 |
drill pipe
