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Changsha Heijingang Industrial Co., Ltd.

DTH Hammer, Rock Drilling, Down The Hole Hammer manufacturer / supplier in China, offering HD35 DTH Hammer (DHD3.5) 3inch Drilling, RC5.5 A67 143 Drilling Bit, Hjg HD45A DTH Hammer Best Quality and so on.

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Supplier Homepage Product High Air Pressure with Foot Falve DTH Hammers HD35 DTH Hammer (DHD3.5) 3inch Drilling

HD35 DTH Hammer (DHD3.5) 3inch Drilling

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 50000 PC/Year
Transport Package: Poly Wood
Payment Terms: L/C, T/T, cash

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Basic Info
  • Model NO.: DHD3.5 HJG drill
  • Power Type: Pneumatic
  • Condition: New
  • Trademark: HJG
  • Origin: China
  • Usage: Ore
  • Type: Drilling Machine
  • Mining Object: Mining
  • Specification: SGS ISO
  • HS Code: 84123100
Product Description
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

HD35 DTH Hammer (DHD3.5) 3inch Drilling
HD35 DTH Hammer (DHD3.5) 3inch Drilling
HD35 DTH Hammer (DHD3.5) 3inch Drilling
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Mr. Larry Wu
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