2021 Hot High Air Pressure DTH Hammer Without Foot Vlave HD45A

China 2018 Hot High Air Pressure DTH Hammer Without Foot Vlave HD45A, Find details about China DTH Hammer, Rock Drilling from 2018 Hot High Air Pressure DTH Hammer Without Foot Vlave HD45A

Model NO.
HD45A
HS Code
84123100
Model NO.
HD45A
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.
Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread
1248 mm100.00 kg Φ142 mm  Cop64, DHD360Φ155mm _ Φ190mm API 3 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 MPa23 Hz20-30 rpm10 m³/min 20 m³/min28 m³/min 



2018 Hot High Air Pressure DTH Hammer Without Foot Vlave HD45A
2018 Hot High Air Pressure DTH Hammer Without Foot Vlave HD45A