Hjg HD35 3 Inch Drilling DTH Hammer

China Hjg HD35 3 Inch Drilling DTH Hammer, Find details about China DTH Hammer, Rock Drilling from Hjg HD35 3 Inch Drilling DTH Hammer

Model NO.
DHD3.5
HS Code
84123100
Model NO.
DHD3.5
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
930mm25.00 kg Φ82 mm  DHD3.5Φ90mm _ Φ110mm API 2 3/8'' Reg
Working PressureImpact rate at 0.5 MPaRecommended Rotary SpeedAir Consumption
1.0 MPa1.5 MPa 
1.0 - 1.5 MPa28 Hz25-40 rpm4.5 m³/min 9 m³/min 

Hjg HD35 3 Inch Drilling DTH Hammer
Hjg HD35 3 Inch Drilling DTH Hammer
Hjg HD35 3 Inch Drilling DTH Hammer