DTH drill bits use spherical rock drilling alloy tooth heads and spline-shaped tail shanks. The drill alloy can be divided into hemispherical teeth, conical teeth, parabolic teeth, and other types according to the shape. The hemispherical teeth have a strong load-bearing capacity and good wear resistance, which are suitable for drilling hard, medium-hard, and abrasive rocks; the conical teeth and parabolic teeth have fast drilling speed and are suitable for drilling medium-hard and non-abrasive rocks.
Drill Bit Characteristics:
1. Flat Face:
This flat face is suitable for drilling very hard rock formations and corrosive wall formations at high air pressures. When the bits is drilling, the faster the drilling speed, the less wear of the drill body.
2. Convex Face:
This Convex face is suitable for low- to medium-pressure drilling of soft-medium hard rock formations, and the drill block is not easy to corrode. The characteristics of this design are the low load of the side button, the wear is not badly and the drilling speed is fast.
3. Concave Face:
This Concave face is suitable for all rock formations, especially in medium-hard and homogeneous rock formations, the effect is good. The blast hole deviation is small, and the slag discharge effect is good.
4. Double Gauge Face:
This double-sided button face is suitable for drilling very hard rock formations at high air pressures. When the bits is drilling, drilling speed is fast, the bit body wear will also be less.
5. Drop Center:
When using low-medium pressure to drill soft-medium hard and fractured rock formations, in order to obtain fast rock drilling speed and less blast hole slope, this face shape is usually used.
Introduction to DTH Drill Bits:
All of our DTH drill bits can be tailored to withstand the most demanding drilling conditions. All major submersible drill pipe designs can be ordered.
Precision engineering, world class heat treatment processes and high quality tungsten carbide alloy steel make DTH drill bits stand out.
All drill bits are manufactured in state-of-the-art facilities around the world, ensuring availability and short lead times no matter where our customers are located. Our cutting-edge manufacturing processes and proprietary heat treatments ensure consistent quality, which translates into reliable and dependable drilling consumables.
All drill bits are made using tungsten carbide alloy steel manufactured in our own factory. We have perfected our tungsten carbide technology and carbide plant, which uses the latest technology to manufacture a wide range of grades, shapes and sizes of tungsten carbide alloy steels.
We use these tungsten carbide alloy steels for global production for drill bits and related products.
Through collaboration with our customers and strict control of all production processes, we are able to continually improve our drill and tungsten carbide technology. This dedication to innovation, quality, durability and customer service has earned us the reputation as the Drillers Choice for DTH consumables.
DTH Drill parameters：
|bit diameter||connection specification||Alloy||stoma||Weight(Kg)||note|
|50||29*4||5||1||1||DTH hammer 50|
|65||37*4||6||1||1.4||DTH hammer 60|
|76||44*4||8||2||2.2||DTH hammer 70|
|80||50*6||8||2||3.2||DTH hammer 80|
|90||54*6||10/11||2/3||3.9||DTH hammer 90|
|100||54*6||10/11||2/3||4.1||DTH hammer 90|
|110||54*6/60*4/65*6||13||2/3||6.0||DTH hammer 90/100B/110|
|120||54*6/60*4/65*6||12/13||2/3||6.2||DTH hammer 90/100B/110|
|130||54*6/60*4/65*6||15||3||7.2||DTH hammer 90/100B/110|
|140||60*4/65*6||15||3||7.9||DTH hammer 100B/110|
|145||60*4/65*6||16||3||8.2||DTH hammer 100B/110|
|150||60*4/65*6/90*6||16/20||3||8.6-19.8||DTH hammer 100B/100/150|
|160||65*6/90*6||20/21||3||19.3||DTH hammer 110/150|
|170||65*6/90*6||20||3||19.8||DTH hammer 110/150|
|175||65*6/90*6||20/21||3||20||DTH hammer 110/150|
|180||65*6/90*6||20||3||21.6||DTH hammer 110/150|
|200||90*6||20||3||24||DTH hammer 150|
|105||64*8||13||2||8||DTH hammer 340|
|140||82*8||14||2||12||DTH hammer 350|
Main applications of DTH drill bits:
1、Used in geology, coalfield, metallurgy, building materials, mining core drilling.
2、Drilling for core engineering survey of highway, railroad, bridge, housing construction, hydropower, etc;
3、Drilling for grouting and reinforcement of soft and dangerous rocks, foundation treatment, broken strata, etc;
4、For large-diameter engineering drilling, hydrological water well drilling, construction pile foundation and inverted vertical hole construction drilling;
5、Used for pit ventilation, exhaust, rock building monitoring drilling and concrete sampling drilling. The drilling efficiency of medium-hard and hard rocks can be greatly improved by 30 times of the quality alloy, and the cutting edge does not need to be resharpened.