The DTH is the abbreviation of Down The Hole and sometimes it is also called RAB in some markets, then the RAB is short for Rotary Air Blasting
SINODRILLS GSE DHD-N DTH Hammers
DTH (down-the-hole) drilling involves a drilling hammer at the bottom of a drill string, the hammer is powered by compressed air transmitted via drilling rod to drive piston and produce impact power, which is then delivered into rocks for drilling and crushing. DTH drilling can be applied in mining, quarrying, water well drilling, foundation piling, etc. DTH hammer uses compressed air to produce impact power, thus to drive drill bits to crush rocks.
Features
• Extraordinary penetration rate
• Less air, more production
• Less downtime, longer duration
• Premium material, fine CNC and heat-treatment manufacturing processes and optimized design;
• Good stability and reliability;
• High impact frequency;
• Lowered compressed air consumption;
• Long lifespan
Applications
Mining, quarrying, water well drilling, geothermal well drilling, foundation piling, etc.
Structure
01 - Top Sub | 02 - O Ring | 03 - Chevk Valve Dart | 04 - Spring | |
05 - Steel Washer | 06 - Rigid Valve | 07 - O Ring | 08 - Internal Cylinder | |
09 - Piston | 10 - Piston Case | 11 - Guide Sleeve | 12 - Bit Retainer Ring | |
13 - O Ring | 14 - Drive Sub |
GSE DHD2.5N DTH Hammer
Net weight | Out diameter | GSE DHD2.5N DTH Hammer length without bits | ||
17.5 kg | 70 mm | 806 mm | ||
Rec. hole size | Working pressure | Air consumption: M3(CBM)/min | ||
76mm - 80mm | 8 bar - 18 bar | @ 10 bar | @ 18 bar | |
3 | 8 |
GSE DHD3.5N DTH Hammer
Net weight | Out diameter | GSE DHD3.5N DTH Hammer length without bits | ||
24.5 kg | 80 mm | 862 mm | ||
Rec. hole size | Working pressure | Air consumption: M3(CBM)/min | ||
90mm - 105mm | 8 bar - 18 bar | @ 10 bar | @ 18 bar | |
3.8 | 8 |
GSE DHD340N DTH Hammer
Net weight | Out diameter | GSE DHD340N DTH Hammer length without bits | ||
40.5 kg | 99 mm | 937 mm | ||
Rec. hole size | Working pressure | Air consumption: M3(CBM)/min | ||
105mm - 130mm | 8 bar - 25 bar | @ 10 bar | @ 18 bar | @ 24 bar |
4.5 | 9 | 14 |
GSE DHD350N DTH Hammer
Net weight | Out diameter | GSE DHD350N DTH Hammer length with out bits | ||
75 kg | 126 mm | 1081 mm | ||
Rec. hole size | Working pressure | Air consumption: M3(CBM)/min | ||
133mm - 152mm | 8 bar - 30 bar | @ 10 bar | @ 18 bar | @ 24 bar |
6.5 | 12.5 | 17 |
GSE DHD360N DTH Hammer
Net weight | Out diameter | GSE DHD360N DTH Hammer length without bits | ||
106 kg | 144 mm | 1188 mm | ||
Rec. hole size | Working pressure | Air consumption: M3(CBM)/min | ||
152mm - 254mm | 8 bar - 35 bar | @ 10 bar | @ 18 bar | @ 24 bar |
7.5 | 16 | 24 |
GSE DHD380N DTH Hammer
Net weight | Out diameter | GSE DHD380N DTH Hammer length without bits | ||
195 kg | 182 mm | 1317 mm | ||
Rec. hole size | Working pressure | Air consumption: M3(CBM)/min | ||
194mm - 305mm | 8 bar - 35 bar | @ 10 bar | @ 18 bar | @ 24 bar |
10 | 24 | 33 |
Please contact our sales team for more specifications.