7 Degree Jack Hammer Tungsten Carbide Rock Drilling Tools Integral Drill Steel Hexagonal Shank Taper Drill Rod for Mining

Product Item：60729674141

Type:Taper Drill Rod Taper Drill Bit

Material:55simnmo, Tungstern Carbide

Use:Rock Drilling/Water Well Mining

Category：Tapered Drill Rod

Description

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.

	Rod Length
	500~800mm
	1500~4000mm
	1830~6100mm
Shank Length
*22108mm**
*25108mm**
*25159mm**
	Tapper Degree 7º,11º,12º

PRODUCT SPECIFICATION

	Rod Length		Taper Degree
Shank Style	mm	foot/inch	Taper Degree
Hex22 × 108mm	500 ~ 8,000	1’ 8” ~ 26’ 2”	7°, 11° and 12°
Hex25 × 108mm	1500 ~ 4,000	4’11” ~ 13’1”	7°
Hex25 ×159mm	1830 ~ 6,100	6’ ~ 20”	7° and 12°

Notes:

1. The ordinary connection taper degree is 7º, 11º and 12º, other degrees like 4.8º, 6º and 9º are also available upon request;

2. The ordinary shank is Hex22 × 108mm, Hex25 × 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.

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Different rock formations and Rock drills require different taper angles. For this,Acedrills can provide taper drill rods with three grades, and lengths available from 600mm (2’) to 11,200mm (36’8”), (measured from the collar to the tapered end).

Taper Rods Grades Recommended Table

Grades	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