Cop 34 DTH Bits, Cop 32 DTH Hammer for blast hole drilling and water well drilling projects
DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special "stress relief" processes ensure consistent performance. DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate.
"Down-the-hole" (DTH) drill bits are used with "Down-the-hole" hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill bits are designed with a splined drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes.
All ROSCHEN’s DTH drill bits are also CAD designed, CNC manufactured for perfect bits body, and multiple heat-treated to enhance hardness, surface-compressed for fatigue resistance, all thus to extend the product life for maximum wear and performance in the toughest of drilling conditions.
1. Specific heat treatment standards
2. Premium hardened steel alloy
3. High-grade cemented tungsten carbide buttons.
4. Certification: GB/T 19001-2008/ISO 9001: 2008
1. The down-the-hole drilling tool is used to drill large-diameter holes in rocks, usually in the initial stage prior to blasting, but it is also used in non-blasting application.
2. DTH drilling are used mostly in mining quarries, but can be used in a variety of other construction application.
3. The DTH drilling method is growing in popularity, with the increase in all application segments, including blast-hole, water well, foundation, oil & gas, cooling systems and drilling for heat exchange pumps.
4. Applications were later found for the underground DTH method, where the direction of drilling is generally upwards instead of downwards.
|Product Name:||DTH drill bits|
|Description:||DTH drill bits are used for blast hole drilling and water well drilling projects.|
|Working with DTH hammer, mainly applied in Mining,|
|Marble quarry or well drilling and other construction projects.|
|Material:||High quality carbide + High quality carbon steel|
|Compatibility Series:||COP/ SD/ DHD/ IR/ Mission/ QL/ BR/ CIR etc|
|Specification:||Diameter: (mm)||Weight: (kg)|
|Low air pressure DTH bits CIR type||68 ~ 200||2.6 ~ 48|
|Middle air pressure BR & COP type||76 ~ 110||3.8 ~ 15|
|3 inch high Air pressure DTH bits||85 / 90 / 95 / 100 / 105||4.2 ~ 5.5|
|4 inch high Air pressure DTH bits||105 / 110 / 115 / 120 / 127||9 ~ 12|
|5 inch high Air pressure DTH bits||133 / 140 / 146 / 152 / 165||15 ~ 18.5|
|6 inch high Air pressure DTH bits||152 / 165 / 178 / 190 / 203||26 ~ 36|
|8 inch high Air pressure DTH bits||195 / 203 / 216 / 254 / 305||33 ~ 95|
|Specification:||Weight (kg)||External Diameter (mm)||Connection thread||Hole rang (mm)||Impact rate||Recommended rotation speed|
|3 inch DTH hammer||24.5||81||API 2 3/8" Reg||90~110||28Hz (at 17 bar)||28 r/min|
|4 inch DTH hammer||39.2||99||API 2 3/8" Reg||110~150||27Hz (at 17 bar)||25~40 r/min|
|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|
|6 inch DTH hammer||98||142||API 3 1/2" Reg||152~216||23Hz (at 17 bar)||15~25 r/min|
|8 inch DTH hammer||188||180||API 4 1/2" Reg||203~305||20Hz (at 17 bar)||15~25 r/min|
|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|
|3"||DHD3.5||ROS 32||API 2 3/8" Reg||￠90-￠110mm||1.0-1.5Mpa||1.0Mpa||4.5m3/min|
|4"||DHD340||ROS 34||API 2 3/8" Reg||￠110-￠135mm||1.0-2.5Mpa||1.0Mpa||6m3/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|
|6"||DHD360||ROS 62 ROS 64||API 3 1/2" Reg||￠155-￠190mm||1.0-2.5Mpa||1.0Mpa||10m3/min|
|8"||DHD380||ROS 82 ROS 84||API 4 1/2" Reg||￠195-￠254mm||1.0-2.5Mpa||1.0Mpa||15m3/min|
|10"||SD10||ROS 100||API 6 5/8" Reg||￠254-￠311mm||1.0-2.5Mpa||1.0Mpa||22m3/min|
|12"||DHD1120||ROS 120||API 6 5/8" Reg||￠305-￠445mm||1.0-2.5Mpa||1.0Mpa||30m3/min|
|Notes: Any special size of DTH bits will be available by requests.|
|Metzke, Remet thread is available!|
Terms & Conditions of Ordering:
Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Using ply-wooden cases and pallet for package to protect the products and avoid the damage during transportation. Also we can customize package according to your special requests.
Generally need 15-25 days
By air, By Express or By sea according to your requests.
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 20 days for production.
in 3 working days after receiving the advance payment
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
a. Our sales team will response for your question within 24 hours (Holidays Excluded)
b. Technical Support will be available in any time
6. 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; Not satisfied with a refund.
For more information, please contact:
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: email@example.com ; firstname.lastname@example.org
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com