China Down The Hole Hammer Drilling, DTH Drill Rock Button Bit for Quarry Drilling, Mining, Find details about China Down The Hole Hammer, Down The Hole Bit from Down The Hole Hammer Drilling, DTH Drill Rock Button Bit for Quarry Drilling, Mining
Down The Hole Hammer Drilling , DTH Drill Rock Button Bit for Quarry Drilling , Mining
DTH hammer and bits are compatible with CIR, DHD, QL, SD, Mission, etc. Series of Atlas and Secoroc 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) bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer 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.
Specification for DTH drill bit:Bit Dia.(mm) | Qty.× Button Dia.(mm) | Qty.Air Holes | Weight (kg) | Product Code | |
Outer | Front | ||||
152 | 8×16 | 4×16+4×14 | 2 | 23.2 | 140604 |
165 | 8×18 | 4×18+5×16 | 2 | 24.0 | 140914 |
172 | 8×18 | 4×18+4×16 | 2 | 25.1 | 140764 |
178 | 9×18 | 5×18+5×16 | 3 | 26.0 | 141124 |
185 | 8×19 | 5×19+5×16 | 2 | 26.5 | 140854 |
190 | 10×18 | 5×16+5×16 | 2 | 29.2 | 140664 |
195 | 10×18 | 5×18+5×16 | 2 | 29.9 | 140304 |
204 | 10×18 | 6×18+7×16 | 2 | 32.4 | 141254 |
DTH Hammers Specifications | ||||||
Hammer Size | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption | |
3" | DHD3.5 | API 2 3/8" Reg | ¢90-¢110mm | 1.0-1.5Mpa | 1.0Mpa | 4.5m3/min |
COP32/COP34 | ||||||
M30 | 1.5Mpa | 9m3/min | ||||
4" | DHD340 | API 2 3/8" Reg | ¢110-¢135mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
COP44 | ||||||
QL40 | ||||||
SD4 | 1.8Mpa | 10m3/min | ||||
M40 | 2.4Mpa | 15m3/min | ||||
5" | DHD350 | API 2 3/8"Reg/API 3 1/2" Reg | ¢135-¢155mm | 1.0-2.5Mpa | 1.0Mpa | 9m3/min |
COP54 | ||||||
QL50 | ||||||
SD5 | 1.8Mpa | 15m3/min | ||||
M50 | 2.4Mpa | 23m3/min | ||||
6" | DHD360 | API 3 1/2" Reg | ¢155-¢190mm | 1.0-2.5Mpa | 1.0Mpa | 10m3/min |
COP64 | ||||||
QL60 | ||||||
SD6 | 1.8Mpa | 20m3/min | ||||
M60 | 2.4Mpa | 28.5m3/min | ||||
8" | DHD380 | API 4 1/2" Reg | ¢195-¢254mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
COP84 | ||||||
QL80 | 1.8Mpa | 26m3/min | ||||
SD8 | 2.4Mpa | 34m3/min | ||||
M80/M85 | ||||||
10" | SD10 | API 6 5/8" Reg | ¢254-¢311mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
Numa100 | 1.8Mpa | 40m3/min | ||||
ROS 100 | 2.4Mpa | 55m3/min | ||||
12" | DHD1120 | API 6 5/8" Reg | ¢305-¢445mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
SD12 | 1.8Mpa | 56m3/min | ||||
Numa120 | 2.4Mpa | 78m3/min | ||||
Notes: Any special size of DTH bits will be available by requests. | ||||||
Metzke, Remet thread is available! |