QL40 / QL50 / QL60 / QL80 DTH Button bits
For Underground Long Hole Rock Drilling
DTH Button Bit Description:
DTH bit is our main product. After mang years search, we have rich
experience in development and manufacturing high quality products,
which adopted high-quality raw materials, advanced technology and
passed through strictly inspection.
1. high and low air pressure down-the-hole drill bits
2. Low air pressure holeDia.:65-220mm
3. High air pressure hole Dia.:85-305mm
4. Face type:drop center/concave/convex/double gauge/flat
5. Our DTH Bit can be suitable for many types of DTH Hammer, such
as Mission, COP, SD, QL ect.
Basic Information
HAMMER INCH | BIT DIA(MM) | BIT DIA(INCH) | SHANK |
1 | 64MM-76MM | 2 1/2"-3" | BR1 |
2 | 76MM-90MM | 3"-3 1/2" | BR2/PAD320 |
3 | 85MM-105MM | 3 2/5"-4" | BR3/DHD330/COP32/PAD330 |
3.5 | 85MM-110MM | 3 2/5"-4 1/3" | DHD3.5/IR3.5/COP34/QL30/PAD3.5 |
4 | 105MM-140MM | 4"-5 1/2" | DHD340/COP44/QL40/SD4/MISSION40/PAD340 |
5 | 127MM-200MM | 5"-8" | DHD350/COP54/QL50/SD5/MISSION50/PAD350 |
6 | 152MM-254MM | 6"-10" | DHD360/COP64/QL60/SD6/MISSION60/PAD360 |
8 | 195MM-350MM | 7.2/3"-13 4/5" | DHD380/COP84/QL80/SD8/MISSION80/PAD380 |
10 | 254MM-380MM | 10"-15" | SD10/NUMA100/DHD1100/PAD1100 |
12 | 305MM-457MM | 12"-18" | SD12/NUMA120/DHD1120/PAD1120 |
| Product | DTH Button Bits |
| Low Air Pressure | CIR80, CIR90 |
| 3’’ | DHD3.5, M30, |
| 4’’ | DHD340, SD4,QL40, M40 |
| 5’’ | DHD350, SD5,QL50, M50 |
| 6’’ | DHD360, SD6,QL60, M60 |
| 8’’ | DHD380, SD8,QL80, M80 |
| Color | Green, Gold, Black or based on customer requirements. |
| MOQ: | No MOQ required for testing and trial order |
DTH Button Bit Photo:
QL40
QL50
QL60
QL80
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.
Applications
• Underground mining
• Down the hole rock drilling
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
Patameter
| Shank style | Diameter in mm | Flat face | Convex face | Concave face | Approx. weight | Part number |
QL 40 | 105 | √ | √ | √ | 9.9 kgs | QL 40-105 |
| 110 | √ | √ | √ | 10.1 kgs | QL 40-110 |
| 115 | √ | √ | √ | 10.2kgs | QL 40-115 |
| 120 | √ | √ | √ | 10.5 kgs | QL 40-120 |
| 127 | √ | √ | √ | 11.2 kgs | QL 40-127 |
QL 50 | 135 | √ | √ | √ | 16.2 kgs | QL50-135 |
| 140 | √ | √ | √ | 16.6 kgs | QL50-140 |
| 146 | √ | √ | √ | 17.1 kgs | QL50-146 |
| 152 | √ | √ | √ | 17.8 kgs | QL50-152 |
| 165 | √ | √ | √ | 18.0 kgs | QL50-165 |
QL 60 | 152 | √ | √ | √ | 22.3 kgs | QL60-152 |
| 165 | √ | √ | √ | 24.4kgs | QL60-165 |
| 171 | √ | √ | √ | 24.8 kgs | QL60-171 |
| 190 | √ | √ | √ | 29.0 kgs | QL60-190 |
| 203 | √ | √ | √ | 33.0 kgs | QL60-203 |
QL 80 | 203 | √ | | √ | 48.5 kgs | QL80-203 |
| 216 | √ | | √ | 50.1 kgs | QL80-216 |
| 241 | √ | | √ | 60.1 kgs | QL80-241 |
| 254 | √ | | √ | 62.5 kgs | QL80-254 |
| 292 | √ | | √ | 85.0 kgs | QL80-292 |
| 305 | √ | | √ | 83.9 kgs | QL80-305 |
We can design and manufacture the personalized products to meet
your special application, such as changing the tungsten carbide
insert profile (spherical, ballistic, etc.), face profile (flat
face, concave, convex, etc.), and flushing holes.
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
Applications
1. Mine and quarry
2. Road construction for the drilling and blasting work
3. Water well drilling
4. Slope protection
KSQ Related Rock Drilling Tools
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
