4 inch DHD hammer / Mission hammer / Halco hammer Underground Tools

3" DTH hammer: DHD 3.5, COP 34, COP 32, Mission 30, BR 3, Mach 303,
4" DTH hammer: DHD 340/COP 44, COP 42, QL 40, SD 4, Mission 40, XL 4, Mach 44,
5" DTH hammer: DHD 350 / COP 54, COP 52, QL 50, SD 5, Mission 50, XL 5,
6" DTH hammer: DHD 360/ COP 64, COP 62, QL 60, SD 6, Mission 60, XL 6,
8" DTH hammer: DHD380, QL 80, SD 8, Mission 80,
 

ROSCHEN are leading manufacturing Rock Drilling, Exploration Drilling, Underground Tools, equipment, and accessories, such as DTH Bit, DTH hammer, reamer, PDC drill bit, Diamond Core Bit, Surface Set Bit, Coal bit, rock bit, Core Barrels, Overshot, Drilling Rod, Drill Rig, Casing tube, Core Barrel special parts, Mud Pump, etc. 

Rock Drilling Products introduction: 

Roschen have wide experience and series of high quality products as follows:   

1. Button bits, connection tapered or threaded, diameter from 33mm to 127mm;

2. Cross bits, connection tapered or threaded, diameter from 28mm to 95mm;   

3. Coupling sleeves, R25, R32, R38, T38, T45, T51;   

4. Down the hole hammers, similar or equal DHD, COP, SD and BR etc. series hammers;  

5. Down the hole bits, similar or equal DHD, COP, SD and BR etc. series bits;   

6. Diamond materials and tools, core bits and saw blade, Core bit & Reaming shell NQ, BQ, HQ, NQ, etc., Synthetic Diamond & CBN Grinding wheels, etc. ;  

7. ODEX system;

Features:

For DTH Bits, Various low pressure and high pressure DTH bits are available.  

Low pressure DTH Bits diameter ranges from 66mm to 205mm, are used to equip with our JQ series low pressure hammers. Other low pressure DTH bits are available too upon customer's shank drawing or samples.  

High pressure DTH Bits diameter ranges from 76mm to 305mm, the high pressure DTH bits are suitable to:  

Specifications:

DHD340A, DHD350R, DHD360, DHD380;

Cop32, Cop34, Cop44, Cop54, Cop64, Cop84;

Mission 40, Mission 50, Mission 60, Mission80;

SD4, SD5, SD6, SD8;

QL40, QL50, QL60, QL80;

BR2, BR3. ….

DTH Hammer:

DTH hammer sizes: 3”, 3.5”,4”,5”,6”,8”;

DTH hammer shank styles: DHD3.5, DHD340, DHD350, DHD360, DHD380, SD4, SD5, SD6, SD8, Mission40, Mission50, Mission60, Mission80 

Integral Drill Rods: 

(1) Steel grade: 95CrMo equivalent to SANDBAR 20 or C253, 55SiMnMo   

(2) Shank size: hex19mm hex.22mm, including Plug Hole Rod      

(3) Head Diameter: 24mm-44mm      

(4) Length: 0.4m-10m       

(5) Package: in wooden case or in bundles  

(6) Productivity: 2000MT/Month

DTH Hammer Using Functions:

Our down-the-hole (DTH) hammer is a new type of valveless hammer driven by compressed air. It is the ideal rock drilling tool with advantages of large impact energy, high penetration rate, long service life, good efficiency of drilling cuttings removal, easy operation, and reliable working performance. 

They are suitable to use in: 

1. Drilling blasting holes, drainage and ventilating holes, center holes of raising boring, deep blasting holes in traditional drilling and blasting method of raising, pipe holes and other deep holes in all of various strength rocks in open pit and underground mining.

2. Drilling holes in road cutting and other stone constructions (e. g. ports and hydroelectric station constructions, etc.).  

3. Drilling water wells, exploratory boreholes and injected holes.  

This hammer can work with dry dust collection and also with wet dust removal using mixture of air and water.  

The specific DTH hammers as follow: 

TS series----for deep hole and super deep hole drilling 

TG series----for drying drilling 

TH series----for wet drilling 

All our Hammers can be easily adapted to accept different types of bit shanks as COP, BR, DHD, SD, XL QL, MACH, Halco and Mission by simply changing a few basic components. Several models are available in Heavy-Duty format to suit particularly arduous and abrasive drilling conditions.

ROSCHEN Rock Drilling & Exploration Drilling Tools provide various DTH Hammers and Bits, and Wirline Core Bit, Core Barrel, overshot, etc. Please feel free to send us your inquiries & requirements, our professional sales & engineers teams will reply to you promptly with satisfactory answers.