Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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DHD360 DTH Hammer with 3 1/2'' API REG for Water Well Drilling and Hard Rock Drilling
Product Description:
In DTH drilling, the drill string rotates while the drilling hammer continuously strikes down into the rock. Inside the hammer, a piston powered by compressed air gives the drill bit its striking power. This combined with the rotational movement means the rock is crushed in a very efficient manner.
Product Advantages:
1.Less amount of drilling fluid and additives are required.
2.Less weight-on-bit allows for lighter rigs that are easier to set up and takedown.
3.Since cutting force is supplied by reciprocal force, the bit encounters lesser deflection and therefore drills more precisely.
4.Rate of penetration of DTH is 2-5 times greater than the rotary drilling technique.
5.Lesser time consumed compared to when the contractor has to be changed when geology changes.
DTH Hammer Specification:
DHD360 hammer specification
| DHD360/Cop64 | |
| Length(less bit) | 1248mm |
| Weight (less bit) | 100kg |
| External diameter | 148mm |
| Bits shank | Cop64 |
| Bits diameter | 152-203mm 6" - 8" |
| Connection thread | API 3 1/2''REG |
| Air pressure | 1.0-2.5Mpa |
other size hammer specification
Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption | |
| 1-3" Middle-low pressure DTH hammers | BR1 BR2 BR3 | RD40 box RD50 box API 2 3/8" Reg | ¢64-¢76mm ¢70-¢90mm ¢90-¢110mm | 0.7-1.75Mpa 0.7-1.75Mpa 0.7-1.75Mpa | 0.7Mpa | 4.5m3/min |
| 1.0Mpa | 4m3/min | |||||
| 1.4Mpa | 5m3/min | |||||
| 3" hammers | DHD3.5 COP32/COP34 M30 | API 2 3/8"Reg | ¢90-¢110mm | 1.0-1.5Mpa | 1.0Mpa | 4.5m3/min |
| 1.5Mpa | 9m3/min | |||||
| 4" hammers | DHD340 COP44 QL40 SD4 M40 | API 2 3/8"Reg | ¢105-¢130mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
| 1.8Mpa | 10m3/min | |||||
| 2.4Mpa | 15m3/min | |||||
| 5" hammers | DHD350 COP54 QL50 SD5 M50 | API 2 3/8"Reg/API 3 1/2"Reg | ¢130-¢156mm | 1.0-2.5Mpa | 1.0Mpa | 9m3/min |
| 1.8Mpa | 15m3/min | |||||
| 2.4Mpa | 23m3/min | |||||
| 6" hammers | DHD360 COP64 QL60 SD6 M60 | API 3 1/2"Reg | ¢152-¢203mm | 1.0-2.5Mpa | 1.0Mpa | 10m3/min |
| 1.8Mpa | 20m3/min | |||||
| 2.4Mpa | 28.5m3/min | |||||
| 8" hammers | DHD380 COP84 QL80 SD8 | API 4 1/2"Reg | ¢200-¢279mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
| 1.8Mpa | 26m3/min | |||||
| 2.4Mpa | 34m3/min | |||||
| 10" hammers | SD10 NUMA100 | API 6 5/8"Reg | ¢254-¢330mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
| 1.8Mpa | 40m3/min | |||||
| 2.4Mpa | 55m3/min | |||||
| 12" hammers | DHD1120 SD12 NUMA120 NUMA125 | API 6 5/8"Reg | ¢305-¢381mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
| 1.8Mpa | 56m3/min | |||||
| 2.4Mpa | 78m3/min | |||||
Detailed Photos:
Application: