5.0'' QL DHD COP Series DTH Hammers / down the hole hammers
In DTH hammers, 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 hammers a nearly constant penetration rate regardless of hole length.
Basic Information
| Items | Replacement Parts |
| 1 | Top sub |
| 2 | O-ring of top sub |
| 3 | Breakout Ring |
| 4 | Check Valve |
| 5 | Spring |
| 6 | Compression Buffer |
| 7 | Air Distributor |
| 8 | Internal cylinder |
| 9 | Piston |
| 10 | External cylinder |
| 11 | Guide sleeve |
| 12 | O-ring of stop ring |
| 13 | Stop ring |
| 14 | Breakout ring |
| 15 | Drive chunk |
| 16 | Drill bit |
| Drilling Diameter(mm) | Hammer Length(mm) | External Diameter(mm) | Weight(kg) |
| φ135-φ155 | 1156(without bit) | 125 | 73(without bit) |
| Working Pressure(Mpa) | Air Consumption(m³/min) |
| 1.3-2.3 | 1.0Mpa: 9m³/min | 1.8Mpa: 15m³/min | 2.4Mpa: 23m³/min |
| Impact rate at 17 bar | Connection Rod Thread | Recommended Rotation Speed | Bit Shank |
| 25HZ | API 3 1/2'' Reg API 2 7/8'' Reg | 25-40r/min. | QL50 (with foot valve) |
Applications
• Underground mining
• Down the hole rock drilling
Competitive Advantage
• Valveless air distribution, more reliable.
• Simple design of the piston. Long life span.
• More efficient energy transfer, faster drilling speed, low air consumption and lower oil consumption.
• Fewer internal parts, simple structure, less failure and easier to maintain.
• Easy to disassembled because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.
KSQ Related Rock Drilling Tools:
(1) Integral Drill Rod–Shank H19 x 108mm and H22 108mm.
(2) Tapered Rock Drill Tools - chisel bit, cross bit, button bit, drill rod of taper 7, 11, 12 degree
(3) Threaded Rock Drill Tools - button bit, retrac button bit, drop center button bit, dome bit, reaming bit,extension rod, MF-Rod, coupling sleeve of thread R25, R28, R32, R38, T38, T45, T51, ST58, ST68.
(4) Shank Adapters (Striking Bars) - equivalent to Atlas Copco, , Furukawa, Gardner Genver, Ingersoll Rand etc.
(5) Down-the-hole (DTH) Bits& Hammers - 3'', 4'', 5'', 6'', 8'' hammer and DTH button bit.
Other products: Tricone bits, PDC bits, self- drilling hollow anchor bar etc.
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5.0'' QL DHD COP Series DTH Hammers / down the hole hammers Images
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