Kelly bar
Product feature and advantages
Strict selection of raw materials and forging parts such as drive stub to assure the reliable quality;
Heat treatment is widely used in the key parts such as drive keys to improve wear resistance;
With high torsional coefficient, the compression and vibration resistance of kelly bar is higher than average level, high efficient in rock drilling construction;
|
Name |
Type |
Weight(t) |
Transport length(mm) |
Drilling depth(m) |
|
Φ377 friction kelly bar |
Φ377 x5 x12 |
6 |
13300 |
53 |
|
Φ337 interlocking kelly bar |
Φ377 x4 x12 |
7 |
13550 |
42 |
|
Φ445 friction kelly bar |
Φ445 x5 x13 |
10 |
14510 |
58 |
|
Φ445 friction kelly bar |
Φ445 x5 x15 |
11.5 |
16510 |
68 |
|
Φ445 interlocking kelly bar |
Φ445 x4 x12 |
9.5 |
13645 |
42 |
|
Φ445 interlocking kelly bar |
Φ445 x4 x15 |
11.5 |
16645 |
54 |
|
Φ508 friction kelly bar |
Φ508 x6 x15 |
15 |
16585 |
82 |
|
Φ508 interlocking kelly bar |
Φ508 x4 x12 |
11.5 |
13550 |
42 |
