| register number |
K.2.04 Telescopic kelly bar, two-segment type, for rotary drilling equipment |
| data processing short term |
KELLY TELESKOP 2 FACH |
standard
equipment |
Consisting of 2 bars with sealing strips, one telescoping segment.
Max. drilling depth with normal drilling tools in deepest bar and head position achievable without pressure pipe.
With kelly rope swivel.
|
| register of construction equipment 1991 |
4347 |
| wearing part |
Kelly rope swivel, build-up welding on catches and locking strips, damping springs, helical spring
|
| characteristic |
nominal torque (kNm) and max. drilling depth (m) |
|
| years of usage |
* |
| months of rate action |
* |
| monthly ratio for depreciation and interest rate |
* |
| monthly ratio for costs of repair |
* |
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