Shank Adapter,Drill rod,DTH hammer and bits,Tophammer bit,Casing pipe,Tricone bit,Core bit.

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JESSIN ROCK DRILL CO.,LIMITED
Tel: +86-(0)731-85778491
Fax: +86-(0)731-85778492
Mobile:+86-15364024561
Skype: jessin-dthhammer
jessinhammer@163.com
http://www.dthhammer-js.com
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 DTH hammer and bit

China DTH Hammer Suppliers and Manufacturers
       With professional manufacturing experience in DTH hammer production for 13 year , our factory can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards.It is durable for being produced with advanced craftwork and good material.
 
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 JD series DTH hammer designed according to newest rock drilling theory.

2. Smooth performance and long service life of JD 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 many 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.
 
1.high and low air pressure down-the-hole drill bits
2.Low air pressure holeDia.:65-220mm
3.High air pressure hole Dia.:85-305mm
4.Face type:drop center/concave/convex/double gauge/flat
5.Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.
 
Size
DTH Hammer
Connection Thread
Suitable bit
Working pressure
2"
BR2
RD50 box
70-90mm
7-17.5 bar
3"
DHD3.5/COP32/COP34/QL30/M30/
BR3/BR33/XL3/Mach303
API 2 3/8" Reg
90-110mm
10-15 bar
4"
DHD340/COP44/QL40/SD4/M40/
Mach44/TD40(COP44 gold)
API 2 3/8" Reg
110-135mm
10-25 bar
5"
DHD350/COP54/QL50/SD5/M50
API 2 3/8" Reg
API 3 1/2" Reg
135-155mm
10-25 bar
6"
DHD360/COP64/QL60/SD6/
M60/TD60 (COP64 gold)
API 3 1/2" Reg
155-190mm
10-25 bar
8"
DHD380/COP84/QL80/SD8/M80
API 4 1/2’’ Reg
195-254mm
10-25 bar
10"
SD10/NUMA100/COP10
API 6 5/8" Reg
254-311mm
10-25 bar
12"
DHD112/NUMA120/NUMA125
API 6 5/8" Reg
305-445mm
        10-25 bar
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Search Key: COP44,DHD44,SD4, QL40, Mission40
Tel: +86-(0)731-85778491 Fax: +86-(0)731-85778492
Mobile:+86-15364024561 E-mail: jessinhammer@163.com