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Hjg Hm8a DTH Hammer (HM8)图1Hjg Hm8a DTH Hammer (HM8)图2Hjg Hm8a DTH Hammer (HM8)图3Hjg Hm8a DTH Hammer (HM8)图4Hjg Hm8a DTH Hammer (HM8)图5Hjg Hm8a DTH Hammer (HM8)图6

Hjg Hm8a DTH Hammer (HM8)

Price $0.00
Min Order 1 Piece  
Shipping from Hunan, China
Quantity
-+
Product details
HM8
Customized
JIS
Taper-length
Twist Drill Bit
Tungsten Carbide
Wood Drilling, Well Drilling, Metal Drilling
Mining
HJG
China
84123100
Product Description
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.




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
1338 mm176.00 kg Φ180 mm  HM8Φ195mm _ 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 MPa22 Hz15-25 rpm12 m³/min 22 m³/min28 m³/min
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Changsha Heijingang Industrial Co., Ltd.

Audited Supplier13 Years
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