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
17.5 kg
Rec. hole size
76mm - 80mm
Out diameter
GSE DHD2.5N DTH Hammer length without bits
70 mm
806 mm
Working pressure
Air consumption: M3(CBM)/min
8 bar - 18 bar
@ 10 bar
@ 18 bar
3
8
GSE DHD3.5N DTH Hammer
Net weight
24.5 kg
Rec. hole size
90mm - 105mm
Out diameter
GSE DHD3.5N DTH Hammer length without bits
80 mm
862 mm
Working pressure
Air consumption: M3(CBM)/min
8 bar - 18 bar
@ 10 bar
@ 18 bar
3.8
8
GSE DHD340N DTH Hammer
Net weight
40.5 kg
Rec. hole size
105mm - 130mm
Out diameter
GSE DHD340N DTH Hammer length without bits
99 mm
937 mm
Working pressure
Air consumption: M3(CBM)/min
8 bar - 25 bar
@ 10 bar
@ 18 bar
@ 24 bar
4.5
9
14
GSE DHD350N DTH Hammer
Net weight
75 kg
Rec. hole size
133mm - 152mm
Out diameter
GSE DHD350N DTH Hammer length with out bits
126 mm
1081 mm
Working pressure
Air consumption: M3(CBM)/min
8 bar - 30 bar
@ 10 bar
@ 18 bar
@ 24 bar
6.5
12.5
17
GSE DHD360N DTH Hammer
Net weight
106 kg
Rec. hole size
152mm - 254mm
Out diameter
GSE DHD360N DTH Hammer length without bits
144 mm
1188 mm
Working pressure
Air consumption: M3(CBM)/min
8 bar - 35 bar
@ 10 bar
@ 18 bar
@ 24 bar
7.5
16
24
GSE DHD380N DTH Hammer
Net weight
195 kg
Rec. hole size
194mm - 305mm
Out diameter
GSE DHD380N DTH Hammer length without bits
182 mm
1317 mm
Working pressure
Air consumption: M3(CBM)/min
8 bar - 35 bar
@ 10 bar
@ 18 bar
@ 24 bar
10
24
33
Please contact our sales team for more specifications.