Telescopic Kelly Bar
AssemblyNested telescopic bar of 3-5 sections that transmits torque and crowd to the tool and reaches drilling depths of 30-90 m. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Telescopic Kelly Bar
5 top-level lines as of r145180| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Kelly Bar Section | rotary-bored-piling-rig-kelly-section | 4× | 4 | · | part |
| 2 | Kelly Guide Bushing | rotary-bored-piling-rig-kelly-bar-bushing | 8× | 8 | · | part |
| 3 | Kelly Interlock Stop | rotary-bored-piling-rig-kelly-stop | 4× | 4 | · | part |
| 4 | Tool Coupling | rotary-bored-piling-rig-tool-coupling | 1× | 1 | · | part |
| 5 | Kelly Swivel 3 parts | rotary-bored-piling-rig-swivel | 1× | 1 | 0 | assembly |