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By certification 
MACH DTH Button Bits
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.
Our bits are interchangeable with Atlas Copco's COP32 34 44 54 64 84, Ingersoll-Rand 's DHD3.5,DHD3.5HD, DHD 340A , DHD350R, DHD 360, DHD380 QL40, QL50 , QL60, QL80.NUMA100, NUMA120, MISSION60, etc.
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.
Down The Hole(DTH) Drill Button Bit for Drilling Mining Hammer.
Advantages:
Compared with the oversea brands, our advantages are bellowing:
1. Our products can match over 95% against the original products
2. Price are competitive against the famous brands and best quality against the small factory
3. Using higher grade carbides for longer life;
4. Minimizes hole erosion in fragile formations
5. Drills faster through soft formations with less blockages
6. Drills straighter through consolidated and unconsolidated formations
HIGH PRESSURE DTH BUTTON BITS
Shank: DHD3.5, DHD340A, DHD350R, DHD360, DHD380, QL40, QL50, QL80, COP44, COP54, COP64, COP84, SD4, SD5, SD6, SD8, Mission 40, Mission50, Mission60, Mission80, Mach 33, Mach 44, BR2, BR3, BR4, Mach 50, SD10, SD12, DHD112, Numa 120, Numa 125.
Diameter: 76mm ~ 550mm.
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 |
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! | ||||
DIFFERENT FACES STYLES:
Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.
Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.
Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.
Double Gauge face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH bits. Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers
RECOMMENDED DTH BITS AND DTH DRILL PIPES
Bit Size: 3.5" /3", DTH Hammer Bits Shank Types: COP34, DHD3.5, MISSION30 BR3, Recommended Bits: 90mm-105mm
Bit Size: 4" DTH Hammer Bits, Shank Types: DHD340, QL40, MISSION40, SD4, Recommended Bits: 110mm-130mm.
Bit Size: 5" DTH Hammer Bits, Shank Types: DHD350, QL50, MISSION50, SD5, Recommended Bits: 134mm-152mm.
Bit Size: 6" DTH Hammer Bits, Shank Types: DHD360, QL60, MISSION60, SD6, Recommended Bits: 152mm-203mm.
Bit Size: 8" DTH Hammer Bits, Shank Types: DHD380, QL80 MISSION80, SD8, Recommended Bits: 203mm-305mm.
Bit Size: 12" DTH Hammer Bits, Shank Types: DHD112, SD12, QL120, Customer Tailor-made.
DTH Drill Pipes
Diameter: 60mm, 76mm, 89mm, 102mm, 114mm, 140mm, 146mm, 168mm,
Thread Sizes: 2 3/8’’ API, 2 7/8’’ API, 3 1/2’’ API, 4 1/2’’ API.
Wall Thickness: 5.5mm, 6.5mm, 8.5mm, 10mm, 11mm, 19mm etc.
Length: 1000mm- 10670mm
P.S: All DTH drill pipes are friction welded.
