Gold Member Since 2013
Audited Supplier
Changsha Heijingang Industrial Co., Ltd.

DTH Hammer, Down The Hole Hammer, Rock Drilling manufacturer / supplier in China, offering Hql8 DTH Hammer, Hjg Wells Geothermal Drilling Rig, Hjg Reverse Circulation Drill Bit and so on.

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Hql8 DTH Hammer

FOB Price: US $20-100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $20-100/ Piece
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Production Capacity: 50000 PC/Year
Transport Package: Poly Wood
Payment Terms: L/C, T/T, Paypal, Money Gram, Western Union, cash

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Basic Info
  • Model NO.: HQL8 DTH HAMMER WITH FOOT VALVE
  • Usage: Coal, Ore, Water Well, Pneumatic
  • Power Type: Pneumatic
  • Trademark: HJG
  • Origin: China
  • Type: Drilling Machine
  • Condition: New
  • Mining Object: Mining
  • Specification: SGS ISO
  • HS Code: 8412310090
Product Description
Based on the characteristics of the wells, oil, gas and construction drilling, our company self-designed, developed and manufactured this kind of high air pressure DTH hammer.

It has the following characteristics:

1. Using the latest rock drilling theory, optimizing the inside structure and the size of the air distribution, to make the DTH Hammer obtain the optimal energy transfer and make it achieve faster drilling speed and lower air consumption.

2. For such projects as the drill bit break, retrieving very difficult, we specially designed a safe and reliable anti-shedding device for the bit.

3. The check valve can be replaced to the one with bigger ail controlling hole to provide more efficient cuttings discharge.

4. The top sub and the drive chuck have special thread, which can achieve an easier disassemble.


Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread
1465 mm182 kg Φ185 mm  QL80Φ195mm _ 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 MPa20 Hz15-25 rpm15 m³/min 26 m³/min34 m³/min

Hql8 DTH Hammer
Hql8 DTH Hammer
Hql8 DTH Hammer
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Mr. Larry Wu
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