Home Toolbuy Products Hard Rock DTH Drilling Hammer/Down The Hole Drilling Ql40

Hard Rock DTH Drilling Hammer/Down The Hole Drilling Ql40

Hard Rock DTH Drilling Hammer/Down The Hole Drilling Ql40
Price: Negotiable/Piece
Trade Terms: FOB
Min Order: 1/Piece
Pay Type: T/T
According to your request, the top sub can be made into two spanners. An air controlling hole can be drilled on the check valve to provide more efficient cuttings discharge.

High Air Pressure DTH Hammer:
1.10 years manufacturing experience;
2. Certificate: ISO9001: 2008
3. Material: Carbide

It is a kind of valveless high air pressure DTH Hammer with foot valve.

It has the following advantages:

Valveless air distribution. More reliable.
Simple design of the piston, long life.
More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.

Our advantages:
We have advanced production equipments & talented researchers & technicians & rich experiences in R & D and production.
We use the best quality raw materials.
We adopt advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.
Length    (Less bit)Weight  (Less bit)External diameterBit ShankHoleRangeConnection Thread
Φ254-Φ311 API4 1/2"Reg
Working PressureImpact rate at 1.7MpaRecommended rotation speedAir consumption
1.0-2.5Mpa20HZ15-25/min22 m³/min40m³/min65m³/min
Prod Model: QL40
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
External Diameter: 226mm
Hole Range: 254-311
Mining Object: Metallic and Non-Metallic Ore Excavator
Hunan New Diamond Machinery and Equipment Co., Ltd is a modern high-tech enterprise, specialized in researching and manufacturing rock drilling equipments and pneumatic tools.

We mainly produce:

1.1-2" Low-Middle Air Pressure DTH Hammer

2.3-12" High Air Pressure DTH Hammer (with/without Foot Valve)

3. Big Hole High Air Pressure DTH Hammer

4. Reverse Circulation Hammer

5. Down The Hole Bit

6. Overburden Drilling

7. Hole Opener Bit

8. Thread Button Bit

9. The Others (Shank Adapter, Coupling Sleeves, Drill Tube, Adapters etc. )

After 2 years' development, we are now having a production base covers 80 acres, with more than 300 skilled technicians works in. Our products are widely applied to earthmoving engineering, mining exploitation, oil drilling, water well drilling and pile foundation engineering etc. With rich experience in R & D and production, excellent management team, strong innovation creativity and production scale, our company has achieved great success continuously by the excellent quality products, which have been well accepted by end users and the brand has received extensive positive feedback from international markets and products have been exported to the United States, Australia, Brazil, South Africa, South Korea and other countries. Now we become to one of the most famous enterprises in drill industry in China, and we have the most complete product line, the most abundant series, and the most widely types.

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  • Hunan New Diamond Construction Machinery Co., Ltd.

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