Mission30 Mission40 Mission50 Mission60 Mission 80 Down the Hole Dth Hammer and Bit for Borehole Drilling

Mission30 Mission40 Mission50 Mission60 Mission 80 

down the hole dth hammer and bit for borehole drilling 

DTH  drilling rig is specially developed to meet the customer’s requirements for favorable price. It is widely used in the open-pit blasthole drilling and underwater blasthole drilling projects for metallurgy, mining, building materials, railroad construction, hydropower projects, national defense, earthmoving work, etc.
It is equipped with globally purchased parts and the power system that matches with the power and load, which realizes the match of power, pump, and load, and effectively reduces the energy consumption and ensures optimal performance and high reliability.

DTH (Down-the-hole) Hammer And Bits

High Air Pressure DTH hammers(3''-12''):

1.ND(DHD Shank) series high air pressure DTH hammer includes:DHD3.5,DHD340,DHD350R,DHD360,DHD380,DHD1120

2.QL series high air pressure DTH hammer includes:QL40,QL50,QL60,QL80

3.SD series high air pressure DTH hammer includes:SD4,SD5,SD6,SD8,SD10,SD12

4.NUMA series high air pressure DTH hammer includes:NUMA100,NUMA120,NUMA125

5.COP series high air pressure DTH hammer includes:COP44,COP54,COP64,COP84

Connect Thread : API 2 3/8" , API 3 1/2 , Reg-6 5/8"Reg etc.

DTH hammer basic structures:

DTH hammer components: Piston, internal cylinder, air distributor, check valve and drill bit accessories are installed in the external cylinder, the external cylinder has the top sub connected with its connection thread & wrench , there has a drive chuck threaded to the other end of cylinder. There is spline in the drive chuck which is mainly used to transfer feeding and rotational force to the drill bit. The stop ring controls the axial movement of the drill bit, and the check valve is used to prevent cutting and other foreign materials ingress into hammer in case of air supplying is stopped. During drilling, the drill bit is pushed into the hammer and pressed against the drive chuck, where the piston directly impacts the drill bit for crushing rock. Hammer start to clean the bottom by blowing up when bit lift from the hole.

It also has the following advantages:

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.

3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.

4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.

5. Interchangeable with DTH bit and drill pipe

DTH Bit

DTH bit is also our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.

DTH Bit We Can Supply.

Advantages:

- Advanced hammer designs with high power and air efficiency increases productivity

- Tailored product offering covers all your applications and conditions

- Easy service and maintenance designs reduces machine downtime

- Generic and proprietary shank options give you flexibility and reliability


DTH bits specifications:

DTH hammer bits include high air pressure and low air pressure two series, with advanced design concept,better wear-resistance,better impact-resistance,higher drilling speed,longer service life,widely used in large-scale open pit mining,quarry and other large-scale construction projects.