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3-12 Inches DTH Down The Hole Hammer , Rock Drilling Tools With High Efficiency

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The top hammer series are available to Atlas and Sandivik,I have been their agent before,but their price is too high,the cooperation with Prodrill brings me new business and gives me more profit space,I believe in it and recommended Prodrill to you.

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3-12 Inches DTH Down The Hole Hammer , Rock Drilling Tools With High Efficiency

China 3-12 Inches DTH Down The Hole Hammer , Rock Drilling Tools With High Efficiency supplier

Large Image :  3-12 Inches DTH Down The Hole Hammer , Rock Drilling Tools With High Efficiency

Product Details:

Place of Origin: China
Brand Name: PRODRILL
Certification: ISO:9001
Model Number: Dth Hammers

Payment & Shipping Terms:

Minimum Order Quantity: 1pcs
Price: Negotiable
Packaging Details: WOODEN BOX
Delivery Time: 10 to 15 DAYS
Payment Terms: T/T, L/C, Western Union etc.
Supply Ability: 500Pcs/Month
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Detailed Product Description
Type: Without Foot Valve Machine Type: Drilling Tool
Material: Carbide Processing Type: Forging
Use: Well Drilling Type: Dth Hammers

China Prodrill High air pressure 3-12 inches down the hole dth hammer


General Introduction:

We manufacture DTH Hammers in different sizes ranging from 3 to 12. These hammers are made corresponding to Drilling Bits to carry out prevalent objectives. These hammers are used in various down the hole operations like bench Drilling. These are valve less hammers with optimized air cycle frequency. These are heavy duty hammers that well at greater depths demanding less air usage, delivering minimum performance loss. We offer IR hammer, DHD3.5, DHD340a, DHD360, DHD380, COP and QL  SD NUMA hammer. The optimum range of hole size for blast drilling with DTH is 90mm to 254mm, smaller blast holes are generally drilled using top hammer, and larger holes generally use rotary machines. Our hammer like COP and QL are known fort heir reliability and longevity.




Our DTH hammer and bits are compatible with CIR, DHD, QL,SD,Mission, etc. series of Atlas and Sandvik etc.

They are with high efficiency, low failure rate and long service life. Even for all kinds of high hardness, high

abrasive rocks and other harsh conditions, our drilling tools can also realize efficient and economical drilling.



Our hammer and bits are made of high quality alloy steel with advanced heat threatment to assure the good drilling performance and long service life. They are widely used by our customers all over the world.




1. Durable impact parts

2. High speed , most stable performance

3. Efficient energy transfer

4. Long life.



Main Features


1) DTH hammers series we supply

A) High pressure series

B) Medium pressure series

C) Low pressure series

D) High efficiency high pressure series

E) Reverse circulation series


2)Outside diameters: 61.2~275mm

3)Drilling diameter: 68~508mm

Product Application

1. Non-Blocking:Our S-series DTH hammers are proved to ensure extremely low rate of blocking during it works.

2. High Efficiency:The well drilling equipment carries with larger power of impact frequency and torque, thus ensuring faster penetration. Compared with others, the efficiency can be improved 10%.
3. Longer Service Life:All surfaces of the DTH hammer and bits are treated by anti-friction and intensified technology. When used in deep-hole drilling works, it can reach at 5000 meters or more.
4. Excellent Cleaning Effect: This DTH tool has large air output, which specially designed for water well users and enables it to flush out cuttings in deep hole drilling works.
Scope of application:
Mining, quarry, road building, well hole drilling, blasting, landslide prevention, dam reinforement, anchoring, geothermal, hydrology, etc.


Specification: Weight (kg) External Diameter (mm) Connection thread Hole rang (mm) Impact rate Recommended rotation speed
Low air pressure DTH hammer CIR type 5 ~22 50~180 CIR** 55~200 820 rpm  
Middle air pressure BR & COP type 10~30 70~110   85~115    
3 inch DTH hammer 24.5 81 API 2 3/8” Reg 90~110 28Hz (at 17 bar) 28 r/min
COP34/QL30 etc
4 inch DTH hammer 39.2 99 API 2 3/8” Reg 110~150 27Hz (at 17 bar) 25~40 r/min
COP44/DHD340 etc
5 inch DTH hammer 71.5 125 API 2 3/8” or API 3 1/2” Reg 135~165 25Hz (at 17 bar) 20~30 r/min
COP54/Mission50 etc
6 inch DTH hammer 98 142 API 3 1/2” Reg 152~216 23Hz (at 17 bar) 15~25 r/min
COP64/QL60 etc
8 inch DTH hammer 188 180 API 4 1/2” Reg 203~305 20Hz (at 17 bar) 15~20 r/min
COP84/SD8 etc


1, Valve air distribution. More reliable.

2, Simple design of the piston, long life.

3, More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.

4, Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.

5, Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.


3-12 Inches DTH Down The Hole Hammer , Rock Drilling Tools With High Efficiency

About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.


Contact Details
Xiamen Prodrill Equipment Co., Ltd

Contact Person: Prodrill

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