High Strength Drill Stem For Mining Equipment
- HHF
- Henan China
- 75 days
- 50 units per month
The High Strength Drill Stem For Mining Equipment is mainly used for Raise Boring.
HHF's production capacity for the High Strength Drill Stem For Mining Equipment is 50 units per month. Usually HHF offer more than 500 units of the High Strength Drill Stem For Mining Equipment per year.
HHF can not only offer standard High Strength Drill Stem For Mining Equipment but also offer customized mining drill tools.
Sizes can be 9" to 16" with standard DI22 connection.
Product Introduction
The High Strength Drill Stem for Mining Equipment is specifically built for drilling operations where it is used to create vertical or inclined shafts in underground mining operations. This type of drill stem of high power is capable of handling high stresses of various types such as torsion, compression and bending during drilling without breaking. It is a reliable product that will maintain structural integrity in such difficult working conditions, thus ensuring excellent performance from drilling work.
Different sizes for High Strength Drill Stem are 9" up to 16" in diameter. Each of these drill stems has standard DI22 threaded connection for connecting to the rest of the drill string. Besides strong and durable DI22 connection helps to minimize loss by preventing the threads from getting stuck by providing excellent torque and tight coupling under high pressure conditions.
As the primary component in the production of the High Strength Drill Stem for Mining Equipment, high-strength material, 4330VMOD is employed.

There are rigorous Quality Control checks on all produced High Strength Drill Stems For Mining Equipment by us.
Mechanical behavior:
tensile strength | ≥ 1033Mpa ( T) ≥ 1033Mpa(L) |
Yield Strength | ≥ 964Mpa ( T) ≥ 964Mpa(L) |
Elongation | ≥ 10.7% ( T) ≥ 15% (L) |
Impact energy | ≥ 90J(T) ≥ 50J(L) |
Face shrink | ≥ 32% ( T) ≥ 45% (L) |
| hardness | 320-360HB |

Package of High Strength Drill Stem For Mining Equipment

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 is about 150 mu large, equivalent to 100,000 square meters. At the company's production base, there are 3 sets of the factory-style drop forging lines on a large scale (with the basic equipment being a 10,000 ton hydraulic press), 2 advanced mold forging production lines and some big CNC machining centers, heat treating lines, the laboratory of second class national system is quite well equipped too.
About 500 employees are engaged by the company at the moment out of which more than 50 are dedicated researchers who, with their high-level engineers and technical specialists are engaged in the development of new materials, methods and technologies.
In addition to being certified with the basic American API Q1 standard and licensing with the American standards on API 7-1 for both drill collars and stabilizers, the company also possesses an approval by the Chinese CSSC system as for as international certificates the company is certified with ISO 9001:2008 and ISO/TS 29001.

Long-term forging supply relationship of the company is with top-tier domestic and global enterprises in various sectors such as: power generation including wind, water and thermal power, mining machinery industry, ship-building and heavy plant. In fact, some leading Chinese companies such as CITIC HEAVY INDUSTRIES, First HEAVY INDUSTRIES, TAIYUAN HEAVY INDUSTRIES, Goldwind and Envision Energy have been among the customers of the Company's forgeries. Also, a number of the company's forging products were used by the major international manufacturers of mining equipment, which includes Joy Global, Japan Mining, Hitachi Mining, Komatsu and Caterpillar.
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.










