| Customization: | Available |
|---|---|
| Type: | Wireline Drill Rod |
| Usage: | Coring |
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some additional details about the usage methods and characteristics of drill rods in the rock coring and drilling industry:
Usage Methods:
Usage Characteristics:
These additional details provide a deeper understanding of the usage methods and key characteristics of drill rods in the rock coring and drilling industry, highlighting the various drilling techniques, materials, and equipment considerations involved.
| Size | Outer Diameter (mm) | Inner Diameter(mm) |
| AQ | 44.7 | 37.3 |
| BQ | 55.7 | 46.1 |
| NQ | 70.0 | 60.2 |
| HQ | 89.0 | 78.0 |
| PQ(PHD) | 114.5 | 101.5 |
| BTW | 56.3 | 48.0 |
| NTW | 73.3 | 64.0 |
| HTW | 91.3 | 81.0 |
| AW/AWJ/AWY | 43.7 | 30.7 |
| BW/BWJ/BWY | 54.0 | 38.0 |
| NW/NWY | 66.8 | 51.0 |
| HW | 89.0 | 71.0 |
| 42mm | 42.0 | 30.0 |
| 50mm | 50.0 | 37.0 |
| 60mm | 60.0 | 48.0 |
| 70mm | 73.0 | 54.6 |
| 90mm | 89.0 | 69.0 |
| S75A | 71.0 | 60.0 |
| S95A | 89.0 | 78.0 |
| S110 | 110.0 | 98.0 |
| S130 | 129.0 | 117.0 |
| Name: | Wireline Drill Rod |
| Product Basic parameters | |
| Model: | AQ,BQ,LTK48,NQ,NQ3,HQ,HQ3,PQ,PQ3 NTW, BTW, HTW |
| Material: | Alloy Steel Tubing |
| Dimensions: | 0.5,1m, 1.5m, 2m,2.5,3m length or customized |
| Color: | Black or customized |
| Applications: | Drilling Tools |
| Standard: | ISO-9001 |
| Application: | Mining or geological Drilling |
| Rod Model | OD (mm) | ID (mm) | Thread Pitch(mm) | Pin Length(mm) | Rod Length(m) | Unit Bundle Qty (pcs) |
| BAU(Q) | 55.6 | 46.1 | 8.5 | 44.5 | 3 | 19/25/30 |
| NAU(Q) | 69.9 | 60.3 | 8.5 | 44.45 | 3 | 19/25/30 |
| HAU(Q) | 88.9 | 77.8 | 8.5 | 44.45 | 3 | 19/25/30 |
| BRAU(RQ) | 55.6 | 46.1 | 8.5 | 42 | 3 | 19/25/30 |
| NRAU(RQ) | 69.6 | 60.3 | 8.5 | 42 | 3 | 19/25/30 |
| HRAU(RQ) | 88.9 | 77.8 | 8.5 | 42 | 3 | 19/25/30 |
| PHD | 114 | 102 | 10.2 | 63 | 3 | 79/25/30 |
FAQ:
Q11: How are drilling rods handled safely?
A: Proper lifting techniques and equipment such as overhead cranes or pipehandling machines should always be used when handling heavy drilling rods. Gloves help prevent pinched fingers. Clear the area and watch for pinch points when assembling the drill string.
Q12: What is the purpose of drill collars?
A: Heavy thick-walled drill collars placed at the bottom of the drill string above the bit are used to provide weight on bit and transmit high torque needed for drilling harder formations. They have no threads and cannot be disconnected like drilling rods.
Q13: How does wear affect drilling rods?
A: Over time drilling rods experience wear from abrasive rock cuttings and friction during rotation. Thinning walls and thread damage reduces strength and increases break risk, so rods need periodic inspection and replacement as needed to maintain drill string integrity.
Q14: What causes drilling rod failures?
A: Common causes of drilling rod failures include: fatigue from cyclic bending stresses, abrasive wear thinning the pipe, thread damage from poor makeup, corrosion inside or out, unintended impacts, over-torque when connecting, manufacturing defects. Proper inspection and replacement prevents failures.
Q15: How are damaged or worn drilling rods replaced?
A: To replace a rod, the drill string is first pulled up out of the hole. Each individual rod is then spin-broken or jarred loose using a power spinning or jarring tool from the top. The damaged rod can then be removed and replaced with a new rod, which is screwed back into the drill string using a power tong.
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