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

Dth Hammer, Rock Drilling, Down The Hole Hammer manufacturer / supplier in China, offering Hjg HD1120A DTH Hammer (DHD1120), Hjg Wells Geothermal Drilling Rig, Hjg Reverse Circulation Drill Bit and so on.

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Hjg HD1120A DTH Hammer (DHD1120)

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Shanghai, China
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: DHD1120
  • Certification: BIN, JIS, AISI, API
  • Type: Core Drill Bit
  • Usage: Wood Drilling, Well Drilling, Metal Drilling
  • Trademark: HJG
  • HS Code: 84123100
  • Customized: Customized
  • Length: Stub-length
  • Material: High Carbon Steel
  • Mining Object: Mining
  • Origin: China
Product Description
Hjg HD1120A DTH Hammer (DHD1120)It is a kind of high air pressure DTH Hammer without footvalve, our newest design. It is also one of the most advanced DTH Hammers in the world.
Hjg HD1120A DTH Hammer (DHD1120)

Hjg HD1120A DTH Hammer (DHD1120)
Hjg HD1120A DTH Hammer (DHD1120)
Hjg HD1120A DTH Hammer (DHD1120)
Hjg HD1120A DTH Hammer (DHD1120)

It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
Length(exclude bit)Weight(exclude bit)External DiameterBit ShankHole RangeConnection Thread
1880 mm474.00 kg Φ275 mm  DHD1120Φ305mm _ Φ445mmAPI 6 5/8'' 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 rpm28 m³/min 50 m³/min71 m³/min

 
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Mr. Larry Wu
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