Concentric overburden drill bit with blocks for water well projcet Quality Choice

Concentric overburden drill bit with blocks

Application Range

It is recommended to drill in rock formation where contains some ovals and fractures.

Design Principles

 Make the casing follow easy and the equipment and operation simple 

Outstanding Advantages

1.The stable and reliable working performance and the less vibration of drill rig.

2.Flexible to open and close.

Operation Procedure

1.when the drilling starts, the blocks slides down through the grooves on pilot bit,and reams to drive the casing shoes and tubes into the hole.

2.When finished the drilling in overburden rock formations, raise the drilling tools and the blocks will get closed through the grooves , and the drilling tools can be pulled out from the hole.

3. Next construction can be followed.

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.Face: Flat,Convex,Concave,Drop-center.
2.Carbide Button Shape: Spherical,Semi-ballistic,Ballistic and Two-step
3.Bit Shank: COP/DHD/QL/SD/MACH/BR

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