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Mining and Quarrying Low Air Pressure DTH Hammer
Xiamen Bestlink Factory Co., Ltd is committed to providing the best drilling and cutting machine, tools and accessories products in marble and granite stone quarrying, as well as in civil engineering application, especial demolition project.
Product General Introduction:
DTH hammer is one of our main products.It is durable for being produced with advanced craftwork and good material.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.
DTH hammer are mainly used in Rock drilling, well drilling, tunnel drilling, pile drilling and other construction.
Advantage:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption
2. Smooth performance and long service life
3. Low problem rate and easy to maintenance
4. Easy to depart bit from hammer
5. Interchangeable with dth bit and drill pipe
Technical data:
Bestlink factory has difference type for DTH hammer:
1) Low air pressure series, here is the recommend model CIR90 hammer:
| DTH hammer type | CIR90 | |
| Length(less bit) | 795mm | |
| Weight(less bit) | 22.0kg | |
| External diameter | Φ80mm | |
| Bit shank IR3.5” | CIR90/QT90 | |
| Hole range(mm) | Φ90-130 | |
| Connection thread | male T48*10*2 | |
| Working pressure | 0.5-0.7Mpa | |
| Impact rate | 820rpm(6bar) | |
| 10bar | 120L/s(6bar) | |
| Air consumption | 18bar | |
| 24bar | ||
2) Medium air pressure series
3) High air pressure series
| DTH hammer type | HD35 | HD45 | HD55 | HD55C | HD65 | HD85 | |
| Length(less bit) | 930mm | 1030mm | 1170mm | 1160mm | 1248mm | 1487mm | |
| Weight(less bit) | 24.5kg | 39.2kg | 71.5kg | 70.00kg | 98.00kg | 188.00kg | |
| External diameter | Φ81mm | Φ99m | Φ125m | Φ125mm | Φ142m | Φ180m | |
| Bit shank | IR3.5”COP34 | COP44/DHD340 | COP54/DHD350R | HD55C DHD350Q | COP64/DHD360 | COP84/DHD380 | |
| Hole range(mm) | Φ90-110 | Φ110-135 | Φ135-155 | Φ135-155 | Φ155-190 | Φ195-254 | |
| Connection thread | API 2 3/8” Reg. | API 2 3/8” Reg. | API 2 3/8” Reg. | API 2³/8” Reg. | API 2³/8” Reg. | API 41/2” Reg. | |
| API 3 1/2” Reg. | API 31/2” Reg. | ||||||
| Working pressure | 0.5-2.5Mpa | 0.5-2.5Mpa | 0.5-2.5Mpa | 0.5-2.5Mpa | 0.5-2.5Mpa | 0.5-2.5Mpa | |
| Impact rate at 17 Bar | 28Hz | 27Hz | 25Hz | 25Hz | 23Hz | 20Hz | |
| Recommended Rotation speed | 28r/min | 25-40r/min | 20-30r/min | 20-30r/min | 15-25r/min | 15-20r/min | |
| Air consumption | 10bar | 80L/s | 100L/s | 1450L/s | 140L/s | 175L/s | 190L/s |
| 18bar | 1600L/s | 180L/s | 280L/s | 280L/s | 3400L/s | 370L/s | |
| 24bar | 210L/s | 250L/s | 390L/s | 390L/s | 475L/s | 495L/s | |
Inner structure for HD65 DTH Hammer for your reference:
Packing Pictures for DTH Hammer:
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