Atlas Copco COP44 4 inch DTH Hammer for Water Well Drilling Sandstone
1-5 sets
Atlas Copco COP44 4 inch DTH Hammer for Water Well Drilling Sandstone
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Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: ISO
Model Number: 4 inch
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Atlas Copco COP44


4 inch DTH Hammer


DTH Hammer for Water Well Drilling

Payment & Shipping Terms
Packaging Details: Poly wooden box
Supply Ability: 10000 sets
Model: Secoroc COP44 Gold Down-the-hole Hammer
Type: Secoroc Rock Drilling Tools
Item: Secoroc COP44 Hammer
Name: Atlas Copco COP44 HAMMER
Series: Atlas Copco Air DTH Hammer
Item No.: Atlas Cop44 Dth Hammers
Tools: Atlas Copco Tools
Material: Rock Hammers
Series No: China DHD340 DTH Hammer
Origin: Atlas Copco China
QL Bits: Quantum Leap DTH Button Bits
Factory: China Dth Hammers And Bits
Hammer: Down Hole Hammer Drill
Drilling: Dth Drilling Rig
Supplier: China Mission Dth Hammers Suppler
Product Description

Atlas Copco COP44 4 inch DTH Hammer for Water Well Drilling Sandstone   

Brief Introductions:  

High Air DTH Hammer  

1. Lower energy consumption  
2. Higher impact frequency  
3. Easy and cheap maintenance 
4. Long life, reliable 

Product Description:  

Faster Drilling Speed and Most Advanced Air DTH Hammer:  

1. 10 years manufacturing experience
2. Certificate: ISO9001:2008 
3. Material: Carbide 


It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world. 

It has the following advantages:  

1. Out of the trouble of foot valve fracture and expansion and contraction. 
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve. 
3. Simple structure, reliable parts, long life, easy and cheap maintenance. 
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve. 


Atlas Copco Quantum Leap(QL) Hammer Maintnance and Parts
Models Size
COP32 3" Hammer
COP34 3" Hammer
COP42 4" Hammer
COP44 4" Hammer
COP54 5" Hammer
COP64 6" Hammer
COP84 8" Hammer
COP85 8" Hammer
QL30 3" Hammer
QL40 4" Hammer
QL50 5" Hammer
QL55 5" Hammer
QL60 6" Hammer
QL65 6" Hammer
QL80 8" Hammer
QL100 10" Hammer
QL120 12" Hammer
QL140 14" Hammer
QL200 20" Hammer
QL200S 20" Hammer


ROSCHEN DTH Hammers Specifications
Hammer Size Bit Shank ROSCHEN Code Connection Thread Suitable bit Working pressure Air consumption
2" BR2 ROS 11   ROS 22 RD50 box ¢70-¢90mm 0.7-1.75Mpa 0.7Mpa 4.5m3/min
1.0Mpa 4m3/min
1.4Mpa 5m3/min
3" DHD3.5 ROS 32 API 2 3/8" Reg ¢90-¢110mm 1.0-1.5Mpa 1.0Mpa 4.5m3/min
M30 1.5Mpa 9m3/min
4" DHD340 ROS 34 API 2 3/8" Reg ¢110-¢135mm 1.0-2.5Mpa 1.0Mpa 6m3/min
SD4 1.8Mpa 10m3/min
M40 2.4Mpa 15m3/min
5" DHD350 ROS 52   ROS 54 API 2 3/8"Reg/API 3 1/2" Reg ¢135-¢155mm 1.0-2.5Mpa 1.0Mpa 9m3/min
SD5 1.8Mpa 15m3/min
M50 2.4Mpa 23m3/min
6" DHD360 ROS 62   ROS 64 API 3 1/2" Reg ¢155-¢190mm 1.0-2.5Mpa 1.0Mpa 10m3/min
SD6 1.8Mpa 20m3/min
M60 2.4Mpa 28.5m3/min
8" DHD380 ROS 82   ROS 84 API 4 1/2" Reg ¢195-¢254mm 1.0-2.5Mpa 1.0Mpa 15m3/min
QL80 1.8Mpa 26m3/min
SD8 2.4Mpa 34m3/min
10" SD10 ROS 100 API 6 5/8" Reg ¢254-¢311mm 1.0-2.5Mpa 1.0Mpa 22m3/min
Numa100 1.8Mpa 40m3/min
ROS 100 2.4Mpa 55m3/min
12" DHD1120 ROS 120 API 6 5/8" Reg ¢305-¢445mm 1.0-2.5Mpa 1.0Mpa 30m3/min
SD12 1.8Mpa 56m3/min
Numa120 2.4Mpa 78m3/min
Notes: Any special size of DTH bits will be available by requests.
Metzke, Remet thread is available!


Terms & Conditions of Ordering:

1. Payment Terms:
T/T (Telegraphic Transfer) or Western Union

2. Delivery Term:
Based on order quantity, normally it takes 10 days for production.
Only 2 or 3 days if we have stock on your request size.

3. Transportation:
Sample order: we suggest Courier express or by air
Bulk order: we suggest by air or by sea.

4. Quality & Service:

A. There will be strict inspection and testing for every order before shipping out.
B. Our sales team and Technical Support will response for your question within 24 hours through skype: ROSCHEN.TOOL and WhatsApp/Wechat: +86-13764195009
C. Free replacement will provide once the failure confirmed caused or our product quality.

For more information, please contact:


WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: ;


Website: ; ; ;

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Tel : 13764195009
Fax : 86-021-54380177
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