76mm 89mm Overburden Casing Drilling Dystem With Ring Bits

1. Detailed Product Description

1) drill in overburden unstable rock
2) one step to drill and follow casing
3) flexible to open or close
4) efficient below 300mm

2. Application Range
It is suitable for drilling water wells,geothermal wells, short micropiles medium mini-type grouting hole of building, dam and harbor project.

3. Design Principles
Make the casing follow easy and the equipment and operation simple

4. Outstanding Advantages
Simple structure,simple operation,reliable quality,retrievable drilling tools,long service life.

5. Normal Specifications

6. Quality Warranty

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

7. Application

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

8. Our Service

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.

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.