Hjg HD85 DTH Hammer Cop84, DHD380

China Hjg HD85 DTH Hammer Cop84, DHD380, Find details about China Dth Hammer, Rock Drilling from Hjg HD85 DTH Hammer Cop84, DHD380

Model NO.
Cop84, DHD380
HS Code
84123100
Model NO.
Cop84, DHD380
HS Code
84123100
It is a kind of valveless high air pressure DTH Hammer with foot valve.

It has the following advantages:
1. Valveless air distribution. More reliable.
2. Simple design of the piston, long life.
3. More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.
Hjg HD85 DTH Hammer Cop84, DHD380
Hjg HD85 DTH Hammer Cop84, DHD380
Hjg HD85 DTH Hammer Cop84, DHD380
Hjg HD85 DTH Hammer Cop84, DHD380
Hjg HD85 DTH Hammer Cop84, DHD380Hjg HD85 DTH Hammer Cop84, DHD380
Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread
1492 mm188.00 kg Φ180 mm  Cop84 DHD380Φ195mm _ Φ254mm API 4 1/2'' Reg
Working PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption
1.0 MPa1.8 MPa 2.4 MPa
1.0 - 2.5 MPa20 Hz20-30 rpm15 m³/min 26 m³/min34 m³/min