Raiseboring Standard Strength Drill Rod
- HHF
- Henan, China
- 45 days
- 250 units per month
The Raiseboring Standard Strength Drill Rod is mainly used for Raise Boring.
HHF's production capacity for the Raiseboring Standard Strength Drill Rod is 250 units per month. Usually HHF offer more than 2500 units of the Raiseboring Standard Strength Drill Rod per year.
HHF can not only offer standard mining long life drill rods but also offer customized mining drill tools.
Product Introduction
Specification of Raiseboring Standard Strength Drill Rod
| material | Drill rod specifications | OD | ID | ID | Length | DI22 thread | ||||
| Material | Size | in | mm | in | mm | in | mm | in | mm | in |
| 4330V MOD | 8" | 8 | 204 | 3 3/4 | 95.25 | 6 | 152.40 | 53 1/2 | 1359 | 6 3/4 |
| 4330V MOD | 10" | 10 | 254 | 4 | 101.60 | 6 3/4 | 171.45 | 65 7/8 | 1674 | 8 1/4 |
| 4330V MOD | 10 1/8" | 10 1/8 | 258 | 4 | 101.60 | 6 3/4 | 171.45 | 65 7/8 | 1674 | 8 1/4 |
| 4330V MOD | 10 1/4" | 10 1/4 | 261 | 4 | 101.60 | 6 3/4 | 171.45 | 65 7/8 | 1674 | 8 1/4 |
| 4330V MOD | 11 1/4" | 11 1/4 | 286 | 4 3/4 | 120.70 | 7 11/16 | 195.30 | 66 3/8 | 1686 | 9 1/4 |
| 4330V MOD | 11 1/2" | 11 1/2 | 293 | 4 3/4 | 120.70 | 7 11/16 | 195.30 | 66 3/8 | 1686 | 9 1/4 |
| 4330V MOD | 12 7/8" | 12 7/8 | 324 | 5 7/16 | 138.10 | 9 | 228.60 | 68 | 1728 | 10 1/2 |
| 4330V MOD | 14" | 14 | 356 | 4 5/16 | 110.00 | 9 | 228.60 | 69 | 1753 | 11 |


Package of Raiseboring Standard Strength Drill Rod

4145H MOD Mechanical properties of Raiseboring Standard Strength Drill Rod:
Tensile Strength | ≥ 965Mpa / 14000Psi |
Yield Strength | ≥ 758Mpa / 110000Psi |
Elongation | ≥ 13% |
Charpy V Impact | ≥ 54J |
Reduction of Area | ≥ 45% |
| Hardness | 285-341HB |

Quantity Control
HHF has a national II stanard Laboratory for the physical and chemical inspection including tensile test, minus 80 degrees celsius temperature impact, chemical composition analysis, metallographic analysis, non-matallic inclusion analysis, gas content analysis, grain size analysis and magnetic induction intensity, non-magnetic induction gradient and intergranular corrosion test.

About Us
Henan zhongyuan Heavy Forging Co.,Ltd(HHF) founded in 2006, the company has accumulated nearly 20 years of deep professional experience and technological expertise in the field of heavy-duty forging.
The factory covers an area of approximately 150 mu (about 100,000 square meters). The company operates 3 large-scale open-die forging production lines (with core equipment including 10,000-ton hydraulic presses), 2 modern die forging production lines, along with supporting large-scale CNC machining centers, heat treatment lines, and a well-equipped National Class II laboratory. The company has an annual production capacity of 50,000 tons for large open-die and die forgings (with the ability to produce single pieces weighing over 30 tons).
There are four production branches for forging, heat treatment, petroleum equipment, and mechanical processing, a provincial oil drilling tool stabilizer engineering technology research center, a physical and chemical laboratory, and a municipal technology research and development center. The company is an American API Q1 quality system certification and API 7-1 drill stabilizer drill collar logo certification enterprise, and it has obtained CSSC quality system certification and ISO 9001:2008, ISO/TS29001 international quality system certification.

HHF has long provided core forgings to renowned enterprises in both domestic and international markets, spanning industries such as energy (wind, hydro, and thermal power), mining machinery, shipbuilding, and heavy equipment. Its client portfolio includes major domestic companies like CITIC Heavy Industries, China First Heavy Industries, Taiyuan Heavy Industry, Goldwind, and Envision Energy, as well as global mining equipment manufacturers such as Joy Global, Komatsu, and Caterpillar.
The company's products are consistently exported to more than 20 countries and regions, including Germany, the United States, Australia, India, Russia, Brazil, South Africa, South Korea, and Japan, serving markets worldwide.
FAQ
1.Wha's your quote time?
Normally, it is up to 3days. We need to understand your requirements and critical dimensions.
2.How is quality controlled?
A. We have a dedicated QA team. B. We shall do one sample run, then a small batch run before mass order.For a sample order.
3.Can I come and visit you?
Yes, of course. We are pleased to welcome you to visit our company and discuss technical details and requirements with our team.
4.What's the production lead time?
Our pruction progress is from forging, rough machining ,Q+T to final machining.Itis usually 45days.
5.what are your payment terms?
We typically ask for 30% down payments to launch production, 70% balance before delivering goods.







