QIDELI is an engineering company in mining and rock excavation.
We offer THE COMPLETE SOLUTION including drill bits, DTH hammer, drill rods, shank adapters, accessories and added value services. We offer top hammer equipment for every application, such as underground mining and quarries, road and construction. We've been involved in the mining industry for 20 years. We look for excellent performance in our products and service. We provide good quality and better price drill tools, that means excellent hole quality and low-cost drilling for you.
Drill steel smelting quality control, rolling quality control and further products deep processing are equally important. We use following manufacture process, Refining+Vacuum +Continuous casting+Drilling hole method +Surface peeling at Shanghai Baosteel production site. Strictly control not only include above process, also control:
·Non metallic inclusion content A.B.C.D.≤0.5
·Harmful element residues Pb. Sn. Sb. As. etc.≤0.01%
·Gas content O≤10ppm, H≤2ppm
·Rolling surface decarburization≤0.05mm
| Product |
Length |
Diameter |
Thread |
Weight |
| mm |
ft |
mm |
inch |
KG |
Extension rod
T51-ROUND 52-T51 |
1830 |
6' |
52 |
2" |
T51 |
25.3 |
| 3050 |
10' |
52 |
2" |
T51 |
43 |
| 3660 |
12' |
52 |
2" |
T51 |
51.8 |
| 4265 |
14' |
52 |
2" |
T51 |
60.5 |
MF-ROD
T51-ROUND 52-T51 |
1830 |
6' |
52 |
2" |
T51 |
26.8 |
| 3050 |
10' |
52 |
2" |
T51 |
45.7 |
| 3660 |
12' |
52 |
2" |
T51 |
54.5 |
| 4265 |
14' |
52 |
2" |
T51 |
63.3 |
Same diameter
coupling sleeve |
235 |
9 1/4' |
72 |
2 7/8" |
T51 |
4.1 |
| 235 |
9 1/4' |
76 |
3" |
T51 |
4.9 |
| Reducing coupling sleeve |
235 |
9 1/4' |
72 |
2 7/8" |
T51-T45 |
4.2 |
Contact: Sophie
Cellphone: +86 18760510520
