Description
DHD340 High Pressure Hammer
DHD340 High Pressure Hammer
DTH Air Hammer gives you more power down the hole, making your investment produce more in less time.
The King Kong DHD high pressure DTH hammer is used in many different applications which include but are not limited to heavy construction, mining, oil and gas, quarries, and water-well.
This high air pressure DTH hammer work without footvalve is designed and developed by our own, which is the one of the most advanced DTH hammer in the world.
It has following advantages
1.Avoid the problem happens on foot valve. Fracture,expansion and contraction.
2.Lower air comsumption and higher impact frequency. 15-30% higher drilling efficiency than the bit with foot valve.
3.Simpler structure and less spare parts, makes easier & cheaper maintenance.
4.Heat-hardened spare parts,makes longer serving life and less problem.
5.Thread connection for top sub and drive chuck,makes easier disassembly.
| Model | DHD340 | DHD350 | DHD360 | DHD380 |
| Length(Lessbit) | 1032 mm | 1209 mm | 1063 mm | 1492 mm |
| Weight (Lessbit) | 43kg | 78.5kg | 100.5kg | 190 kg |
| External diameter | 99mm | 125mm | 142mm | 180mm |
| Hole Range | φ110-135 mm | φ135-155 mm | φ150-190 mm | φ195-254 mm |
| Connection Thread | API2 3/8″REG | API2 3/8″REG | API3 1/2″REG | API4 1/2″REG |
| WorkingPressure | 1.0-2.2MPa | 1.0-2.5MPa | 1.0-2.5MPa | 1.5-3.3MPa |
| Recommended rotation speed | 30-60 r/min | 30-60 r/min | 30-60 r/min | 30-60 r/min |
| Air consumption | 5.5m³/min (1.0MPa) | 9m³/min (1.0MPa) | 20m³/min (1.0MPa) | 26m³/min (1.8MPa) |
| 10m³/min (1.8MPa) | 15m³/min (1.8MPa) | 28m³/min (1.8MPa) | 34m³/min (2.4MPa) | |
| Parts | Weight (kg) | |||
| Top sub | 8.8 | 14.7 | 20.3 | 42 |
| “O” Ring | 0.01 | 0.02 | 0.02 | 0.02 |
| Check Valve | 0.46 | 1 | 0.8 | 1.3 |
| Spring | 0.04 | 0.06 | 0.05 | 0.09 |
| Rubber Buffer | 0.2 | 0.06 | 0.3 | 0.4 |
| Valve Seat | 2.1 | 4.2 | 5 | 13 |
| Inner Cylinder | 2.45 | 4.9 | 4 | 9.1 |
| Piston | 9 | 15.5 | 23.5 | 41.5 |
| Piston Case | 159 | 30.3 | 37.2 | 62.5 |
| Retainer Ring | 0.2 | 0.3 | 0.6 | 1.2 |
| Drive Chuckk | 3.7 | 7.1 | 6 | 18.2 |
| Adjuster Ring | / | 0.1 | / | 0.2 |
| Ring Lock | / | 0.2 | / | / |
| adjuster Shim | / | / | / | 0.2 |
| Guided Sleeve | / | / | 2.5 | / |
Service
- The technical support team may provide remote or on-site support to resolve issues encountered by users during use.
- Provide original spare parts to ensure timely replacement of worn or damaged parts to maintain the normal operation of DTH bits.
- Timely information reply throughout the day, the first time to solve your problems.
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For more information, please contact us:
Email: sale2@kingkongdrillsltd.com
Whatsapp/Phone:+8617320093173
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