Examples of 'kelly bar' in a sentence
Meaning of "kelly bar"
Kelly bar: A kelly bar is an attachment used in drilling operations, typically for large piling and foundation work. It is designed to provide stability and support for the drilling equipment while also allowing for vertical movement during the drilling process
How to use "kelly bar" in a sentence
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kelly bar
The retraction and extension of a kelly bar correspondingly require time.
The outer kelly bar can also be axially fixedly connected to the drill drive.
Friction kelly bar.
The Kelly bar and drill bit are suspended using the winch and cable.
Interlocking Kelly bar.
However, the Kelly bar can be vertically moved with respect to the box 20.
There are mainly two types of kelly bar,.
We have good supplier of kelly bar with more than 13 years experience.
Also shown is a hexagonal coupling attached to the auger 's kelly bar and another pin.
In other words, the kelly bar 18 is in its raised position.
In this process, the drill tools are attached to a telescopic Kelly bar.
The outer kelly bar 42 and the inner kelly bar 46 are moved simultaneously.
The equipment further comprises a set of driving rods or Kelly bar 22.
The outer kelly bar 42 can be locked to the top drive 20 and thus axially fixed.
Second-hand Kelly bar.
See also
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