About us:
We are a leading manufacturer of rock drilling tools and diamond core drilling tools, like DTH hammers and bits, diamond core bits, reaming shells, core barrels, coupling, cross bits, drill rods located in Changsha, Hunan, China.
We have rich experience in this field of DTH hammers and bits for 20 years.
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as France, Spain, Italy, South Africa, Iran, Malaysia, Australia ad etc.
Product specifications:
Wireline Drill Rods, from WLA to WLP, Parallel Threaded Drill Rods, DCDMA Sizes AW-HW, and Metric sizes 42mm to 90mm, Tapered Threaded Drill Rods, DCDMA Sizes AWY to NWY, AWJ, BWJ and S75 Drill Rods.
All products are manufactured according to international standards, matched with the Swedish Atlas Atlas Copco, Sandvik (of Sandvik), Ingersoll-Rand (Ingersoll-Rand) and the rest of the world brand manufacturing company's products, widely used in the earthwork, rock blasting holes, construction of mining, wells engineering and construction basis.
DTH drill tubes are friction welded, and usually the threads are standard API connections, like 2 3/8" API REG thread, 3 1/2" API REG thread or API IF thread etc. According to customers request, from 1000mm to5000mm length of tubes are available.
| Size | OD (mm) | ID (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 |
| 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 |
| S75 | 71.0 | 61.0 |
Quality warranty:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Production time:
Generally need 10-15 days
Transportation:
By air, By Express or By sea according to your requests.