2021 Hjg HD45 DTH Hammer Cop 44 DHD340

China 2018 Hjg HD45 DTH Hammer Cop 44 DHD340, Find details about China DTH Hammer, Rock Drilling from 2018 Hjg HD45 DTH Hammer Cop 44 DHD340

Model NO.
DHD340
Condition
New
Power Type
Pneumatic
Mining Object
Mining
Trademark
HJG
Transport Package
Poly Wood
Specification
SGS ISO
Origin
China
HS Code
8412310090
Model NO.
DHD340
Condition
New
Power Type
Pneumatic
Mining Object
Mining
Trademark
HJG
Transport Package
Poly Wood
Specification
SGS ISO
Origin
China
HS Code
8412310090
Based on the characteristics of the wells, oil, gas and construction drilling, our company self-designed, developed and manufactured this kind of high air pressure DTH hammer.

It has the following characteristics:

1. Using the latest rock drilling theory, optimizing the inside structure and the size of the air distribution, to make the DTH Hammer obtain the optimal energy transfer and make it achieve faster drilling speed and lower air consumption.

2. For such projects as the drill bit break, retrieving very difficult, we specially designed a safe and reliable anti-shedding device for the bit.

3. The check valve can be replaced to the one with bigger ail controlling hole to provide more efficient cuttings discharge.

4. The top sub and the drive chuck have special thread, which can achieve an easier disassemble.

 
Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread
4260 mm3626.00 kg Φ525 mm  HD525Φ610mm _ Φ800mmAPI 8 5/8'' Reg
Working PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption
1.0 MPa1.8 MPa2.4 MPa
1.0 - 2.5 MPa20 Hz15-25 rpm50 m³/min 80 m³/min99 m³/min

2018 Hjg HD45 DTH Hammer Cop 44 DHD340
2018 Hjg HD45 DTH Hammer Cop 44 DHD340
2018 Hjg HD45 DTH Hammer Cop 44 DHD340