Thread drill extension rod
Product features
It has a long service life.and the y’re also subjected to high bending stress,transferring the percussion energy from rock drill to drilling bit and then into the rock.Application:Tapered drill rods are used in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling.
Packaging for H22 carbide tapered drill rod for rock drilling is bundled with steel wire, 5 pieces are bundled together or as client's requirement.
Cutting 
Polish&Drill
+ 
Mining
Machines
Extension rod with the exact same ends is made from the same steels as Sandvik, produced by CNC machining and advanced heat treatment, we are able to supply full range of extension ronds in different lengths with various threads shown as below:
Thread sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51;
Rods diameter: round 32mm, round 39mm, round 46mm, round 52mm, Hex.22mm, Hex.25mm, Hex.28mm, Hex. 32mm, Hex. 35mm;
Effective lengths:600mm ~ 6400mm;
|
Description |
Length |
Diameter |
Part Number |
Weight |
||
|
mm |
feet |
mm |
inch |
Kg |
||
|
Extension rod, R32-Round32-R32 |
915 |
3` |
32 |
11/4`` |
EXR0915R32R32R32 |
5.50 |
|
1220 |
4` |
32 |
11/4`` |
EXR1220R32R32R32 |
7.32 |
|
|
1525 |
5` |
32 |
11/4`` |
EXR1525R32R32R32 |
9.18 |
|
|
1830 |
6` |
32 |
11/4`` |
EXR1830R32R32R32 |
10.95 |
|
