Underground Mining Hammer Drill Bits / Down The Hole Hammer Tools 2 - 36"
Hammer Drill Bits Introduction
ROSCHEN is one the professional manufacturer and supplier of high performance rock drilling tools like DTH Hammers and Bits. PC Hammers and Bits, DTH drilling pipes and Top Hammer Drilling Tools.
Our tools are widely used in different drilling applications including mining, quarrying, water well drilling, geotechnical industries and etc.
In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.
| ROSCHEN DTH Bits Specifications |
| Hammer Size | Bits diameter | Shank | ROSCHEN CODE |
| Metric | Inch |
| 1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 | ROS 11 |
| 2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 | ROS 22 |
| 3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 | ROS 32 |
| M30/DHD3.5/BR3 | ROS 34 |
| 4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 | ROS 42 |
| SD4/M40/QL40 | ROS 44 |
| 5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 | ROS 52 |
| SD5/M50/QL50/BR5 | ROS 54 |
| 6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 | ROS 62 |
| M60/QL60/Bulroc BR6 | ROS 64 |
| 8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 | ROS 82 |
| QL80/M80/M85 | ROS 84 |
| 10" | 254mm-380mm | 10"-15" | SD10 | ROS 100 |
| NUMA100 |
| 12" | 305mm-508mm | 12"-20" | DHD1120/SD12 | ROS 120 |
| NUMA120/NUMA125 |
| Notes: |
| Metzke, Remet thread is available! |
| Any special size of DTH bits will be available by requests. |
Hammer Drill Bits Advantages:
1. Using higher grade carbides for longer life;
2. Minimizes hole erosion in fragile formations
3. Drills faster through soft formations with less blockages
4. Drills straighter through consolidated and unconsolidated formations
Hammer Drill Bits key face types:
1. Flat Faced Hammer Bit
These hammer bits are excellent for drilling in medium to hard formations. These hammer bits maintain average hole straightness but have an excellent penetration rate.
2. Medium to hard ground formations are no problem for this DTH Hammer Bit. The DTH bit keeps average hole straightness but drills at an excellent speed.
3. These DTH Hammer Bits are great for drilling through medium to hard formations. Drop Center Hammer Bits have excellent hole straightness with an average drilling rate of penetration.
4. Concave Type Hammer Bit
Concave Hammer bits are ideal for drilling through medium to hard formations. These DTH hammer bits are known to keep an extremely straight hole with an average rate of penetration.
Our dth drill bits advantages:
- High quality: We are known as Chinese top 3 drill bits factory.
- Competitive price: Cheap price because of direct factory price.
- Problems solve ability: This ability comes from rich experiences of drill bits industry.
- Fast delivery time: usually it takes 25 days for production. only 2 or 3 days if we have stock of your request size.
- Best quality control: We have our own experienced QC team, there will be strict inspection and testing for every order before shipping out.
FAQ
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) skype: ROSCHEN.TOOL and
WhatsApp/Wechat: +86-13764195009. Email: roschen@roschen.com
b. Technical Support will be available in any time
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