High Strength Dth Hammer Bits , Alloy Numa120 17.5" Small Rock Drill Bits

Numa120-17.5"(445mm) For Water Well , Foundation ,Construction Drilling

Bit Face Shape Selection:

1. Drop Center Bit

----For high penetration rates in soft to medium hard and fissured rock formations.

2. Concave Face

----The all-around application bit face specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.

3. Convex Face

----For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.

4. Flat Face Bit

----This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

Carbide Button Shape Selection:

1. Semi-Ballistic Buttons

2. Ballistic Button

3. Spherical Button

4. Two-step Button

Our Advantages:

We have advanced production equipment & talented researchers & technicians & rich experiences in R & D and production.
We using the best quality raw materials.
We adopting advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.

Steel:

First class special alloy steel with high strength, heat resistance and wearable

Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.

1.Steel Carbide
2.12 years experience
3.Can match to the original bit shank
4.Atlas quality

Our company response for any quality problem caused by material or machining defect.

Excellent for water well drilling, geothermal hole, hole blasting and etc.

Teamwhole offers the market most comprehensive range of DTH hammers. There are hammer solutions for water well drillers, miners and quarry drillers as well as for contractors in construction, oil and gas. Teamwhole's DTH hammers are available in holes sizes from 3.5 to 48 inches in diameter.

Teamwhole's flexible and stable ODEX system wins great reputation in users. Reliable quality,innovative design and professional service ensure the fulfill of many projects.

We even offer reverse circulating RC hammers for exploration. We are the earliest in China for RC since 2004. Now the RC hammer and bits are delivered to Australia,South Africa,Russia and Mongolia in large scales.

More than 30 experts supports the technology and enhance the development.

Northern Europe: foundation, piling

Western Europe: water well and geothermal drilling

Russia: Oil, infrastructure and mining.

South east asia: mining and geothermal

South Africa: mining and water well drilling

Middle east: water well drilling

Oceania: mining, exploration and water well drilling

South America: water well drilling and mining

Changsha Tianhe Drilling Tools and Machinery Co., Ltd., is a professional geotechnical drilling tools manufacturer since 2002. We’re located in Jinzhou New District,Ningxiang County, Changsha,Hunan province.Our main products include DTH (down-the-hole) hammers and bits with capacity of drilling holes from 64mm--1020mm in diameter, DTH drilling tools with large diameter for deep hole drilling, eccentric casing system (ODEX) and concentric casing system, reserve circulation hammers and bits, drilling rig, rock drilling accessories and other relative equipment. They are widely used in mining,water well and geothermal drilling, anchoring, foundation and infrastructure, piling,tunneling and other construction and geotechnical engineering. They are exported to Sweden,Swiss,Finland,Italy, France, Germany, Australia,South Korea,South Africa,Chile, Brazi and other 30 countries.Teamwhole is proved to be the right choice by more than 1000 customers all over the world.

Our registered capital is 6.5 million USD, and monthly capacity is about 1000 sets of hammers. We have about 300 employees,among them there are 80 specialized technicians,30 of them have over 20 years working experiences in DTH drilling tools research and development. We have the ISO9001:2008 certificate,over 30 technical patents, and 3 registered trademarks.We’re a council unit of China Drilling Steel and Drilling Tools Association,the director unit of China Heat Treatment Association, the well-known trademark enterprise of Hunan Province, the high-tech enterprise of Hunan Province, the geotechnical drilling equipment engineering of Changsha City Technology research center and enterprise technology center.

The company always guide themselves with the service concept "focus on users' requirements and meet to customers" needs " , flexibly apply the unique technology, strictly comply with the standards of ISO9001 quality system, professionally commit to research, development and application, and sincerely produce the rock drilling tools with most specifications, easy operation, reliable quality and good prices for all the global users. With strong technical strength, we are making efforts to creat the best brand of Chinese drilling tools, and to be the top manufacturer in the world.