• Hjg 4A DTH Hammer SD4
  • Hjg 4A DTH Hammer SD4
  • Hjg 4A DTH Hammer SD4
  • Hjg 4A DTH Hammer SD4
  • Hjg 4A DTH Hammer SD4
  • Hjg 4A DTH Hammer SD4

Hjg 4A DTH Hammer SD4

Customized: Customized
Standard: JIS, AISI, API
Length: Taper-length
Type: Twist Drill Bit
Material: High Carbon Steel
Usage: Wood Drilling, Well Drilling, Metal Drilling, Masonry Drilling
Customization:

Contact Supplier

Mr. Larry Wu
Director of International Sales Department
Diamond Member Since 2013

Suppliers with verified business licenses

Manufacturer/Factory & Trading Company

Basic Info.

Model NO.
SD4
Mining Object
Mining
Trademark
HJG
Origin
China
HS Code
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 Diameter Bit Shank Hole Range Connection Thread
1012 mm 40.00 kg  Φ99 mm   SD4 Φ110mm _ Φ135mm API 2 3/8'' Reg 
Working Pressure Impact rate at 0.5 MPa Recommended Rotary Speed Air Consumption
1.0 MPa 1.8 MPa 2.4 MPa
1.5 - 2.0 MPa 30 Hz 25-40 rpm 6 m³/min  9 m³/min 14 m³/min

Hjg 4A DTH Hammer SD4
Hjg 4A DTH Hammer SD4
Hjg 4A DTH Hammer SD4
Hjg 4A DTH Hammer SD4
Hjg 4A DTH Hammer SD4
Hjg 4A DTH Hammer SD4
 

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Contact Supplier

Mr. Larry Wu
Director of International Sales Department
Diamond Member Since 2013

Suppliers with verified business licenses

Manufacturer/Factory & Trading Company
Number of Employees
834
Year of Establishment
1999-04-30