Integral Drill Stee Integral Drill Steel Hexagonal Shank Taper Drill Rod 7 Degree Jack Hammer Tungst

7 Degree Jack Hammer Tungsten Carbide Rock Drilling Tools Integral Drill Steel Hexagonal Shank Taper Drill Rod for Mining
Tapered Drill Rods:Tapered drill equipment also provides a hexagonal chuck section to provide leverage for the rotation chuck bushing, which usually also has a forged collar to maintain the proper shank striking face position in the rock drill, and match a tapered bit at the socket end. Holes are typically drilled in 0.6 m increments to accommodate the air-leg feed length. Shank Length Tapper Degree
7º,11º,12º 1. The ordinary connection taper degree is 7º, 11º and 12º, other degrees like 4.8º,6º and9º are also available upon request;
2. The ordinary shank is Hex22 x 108mm, Hex25 x 159mm and other styles are also available if upon customers’ request;
3. The rod length must be specified in order;
4. In order to adapt to different rock conditions, the drill rod is selected by users.
For brochure and more product information, pleaseclick here
totell us the detail. Types
Recommended conditions
Superior
G III, T III,
KSW
1) Rock drills impact energy: ≥76J, typically model: YT28
2) Drilling depth: ≥ 2.5 m (8’ 2 27/64”)
3) Rock formations: very hard, hard, medium hard and soft rock
Protodyakonov Hardness Scale: f ≥ 15
Uniaxial Compressive Strength: ≥150 Mpa
4) Replacements: G rod, G I rod, ROK
Normal
G I, ROK
1) Rock drills impact energy: <76 J, typically model: YT24
2) Drilling depth: ≤2.5 m (8’ 2 27/64”)
3) Rock formations: Medium hard and soft rock
Protodyakonov Hardness Scale: f <15
Uniaxial Compressive Strength: <150 Mpa
4) Replacements: G rod
Economy
G
1) Rock drills impact energy: <76 J, typically model: YT24
2) Drilling depth: ≤2.5 m (8’ 2 27/64”)
3) Rock formations: Medium hard and soft rock
Protodyakonov Hardness Scale: f <10
Uniaxial Compressive Strength: <100 Mpa