195-305 mm DTH high air drill bits 8inch with the model
DHD380,COP84,M80,SD8,QL80
8'' High Air Pressure DTH Button Bit Specification
| 8'' High Air Pressure DTH Bits |
| DTH Button Bit | Diameter | Buttons and Size (mm) | Flushing hole | Weight |
| mm | Gauge | Front | kg |
| DHD380/COP84 | 195 | 9x18 | 9x16 | 3 | 33 |
| 203 | 10x18 | 13x16 | 2 | 40 |
| 216 | 10x18 | 14x16 | 2 | 49 |
| 254 | 12x18 | 17x16 | 3 | 71 |
| 305 | 12x18 | 29x16 | 4 | 95 |
| SD8 | 195 | 9x18 | 9x16 | 3 | 32 |
| 203 | 10x18 | 12x16 | 2 | 37 |
| 216 | 10x18 | 14x16 | 2 | 48 |
| 254 | 12x18 | 21x16 | 2 | 70 |
| 305 | 12x18 | 29x16 | 4 | 94 |
| QL80 | 195 | 9x18 | 9x16 | 3 | 32 |
| 203 | 10x18 | 13x16 | 2 | 35 |
| 216 | 10x18 | 14x16 | 2 | 49 |
| 254 | 12x18 | 21x16 | 2 | 71 |
| 305 | 12x18 | 29x16 | 4 | 95 |
| M8 | 203 | 10x18 | 13x16 | 2 | 35 |
| 216 | 10x18 | 14x16 | 2 | 40 |
| 241 | 12x18 | 18x16 | 2 | 54 |
| 254 | 12x18 | 21x16 | 2 | 57 |
| 305 | 12x18 | 29x16 | 4 | 77 |
We can design and manufacture the personalized products to meet
your special applications, such as changing the tungsten carbide
insert profile (spherical, ballistic, etc.), face profile (flat
face, concave, convex, etc.), and flushing holes.
| Specification of dth hammer button bits: | Diameter: (mm) |
1-2 inch low air pressure DTH bits Shank: BR1, BR2, DHD2.5 | 57/64/70/76/80/82/90 |
3 inch high Air pressure DHT bits Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.5 | 85 / 90 / 95 / 100 / 105/110 |
4 inch high Air pressure DHT bits Shank:DHD340,COP44,M40,SD4,QL40 | 105 / 110 / 115 / 120 / 127/130 |
5 inch high Air pressure DHT bits Shank:DHD350,COP54,M50,SD5,QL50 | 133 / 140 / 146 / 152 / 165 |
6 inch high Air pressure DHT bits Shank:DHD360,M60,SD6,QL60,COP64 | 152 / 165 / 178 / 190 / 203 |
8 inch high Air pressure DHT bits Shank:DHD380,COP84,M80,SD8,QL80 | 195 / 203 / 216 / 254 / 305 |
10 inch high Air pressure DTH bits Shank:SD10, NUMA100 | 254/270/279/295/305 |
12 inch high Air pressure DTH bits Shank:SD12,DHD1120,NUMA120,NUMA125 | 305/330/343/356/368/381 |
15 inch high Air pressure DTH bits Shank: DHD1150, SD15,NUMA125 | 381/391/435/457/483/503 |
Over 20 inch high Air Pressure DTH bits Shank: NUMA180,NUMA240, | 483/508/560/578/610/660 |
DTH Button Bit Photo:
203mm DTH 8 inch Button Bit Photo
8 inch hammer
Bit Face Shape Selection:
Center Drop Bit:
For high penetration rates in soft to medium hard and fissured rock
formations. Low to medium air pressure.
Maximum hole deviation control.
Concave Face
The all-around application bit face specifically for medium hard
and homogeneous rock formations.
Good hole deviation control and good flushing capacity.
Convex Face
For high penetration rates in soft to medium-hard with low to
medium air pressure. It is the most resistance to steel wash and
may reduce the load and wear on gauge buttons, but poor hole
deviation control.
Double Gauge Face
This kind of face shape is suitable for fast penetration rates in
medium to hard rock formations. Designed for high air pressure and
good resistance to steel wash step gauge bit.
Flat Face Bit
This kind of face shape is suitable for hard to very hard and
abrasive rock formation is applications with high air pressure.
Good penetration rates and resistance to steel wash.
Competitive Advantage
• High-grade tungsten carbide inserts
• Bit bodies manufactured from high-grade steel and processed using
state-of-the-art CNC machinery and heat treatment
Applications
• Underground mining
• Down the hole rock drilling
Keywords
DTH BIT, DTH Button Bit, Down The Hole Button Bit, Rock Bit, Rock
Drill Bit,
Low Air Pressure DTH Button Bit, High Air Pressure DTH Button Bit
About us
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ
Tecnologies (Beijing) Co. Ltd.
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical
know-how in development, production, and application. The company
has adopted advanced manufacturing processes to ensure high quality
steels and tungsten carbide inserts for its rock drilling
accessories. Its personnel understand clients’ drilling needs, and
have the service skills to recommend the right drilling tools for
the job. Its experienced product developers can also create custom
tools. Furthermore, the company’s development team introduces
innovative products each year – tools that are rigorously tested in
the field and proven to perform beyond industry expectations.
MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers
