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2021 Hjg HD85A DTH Hammer (Cop84 DHD380 )

China 2018 Hjg HD85A DTH Hammer (Cop84 DHD380), Find details about China Dth Hammer, Rock Drilling from 2018 Hjg HD85A DTH Hammer (Cop84 DHD380)

Model NO.
Cop84 DHD380
Mining Object
Mining
Trademark
HJG
Origin
China
HS Code
84123100
Model NO.
Cop84 DHD380
Mining Object
Mining
Trademark
HJG
Origin
China
HS Code
84123100
It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.
2018 Hjg HD85A DTH Hammer (Cop84 DHD380)

2018 Hjg HD85A DTH Hammer (Cop84 DHD380)
2018 Hjg HD85A DTH Hammer (Cop84 DHD380)
2018 Hjg HD85A DTH Hammer (Cop84 DHD380)
2018 Hjg HD85A DTH Hammer (Cop84 DHD380)
2018 Hjg HD85A DTH Hammer (Cop84 DHD380)
It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread
1359 mm175.00 kg Φ180 mm  Cop84 DHD380Φ195mm _ Φ254mmAPI 4 1/2'' Reg
Working PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption
1.0 MPa1.8 MPa2.4 MPa
1.0 - 2.5 MPa22 Hz15-25 rpm12 m³/min 22 m³/min28 m³/min

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