The common problem of rotary rig drilling kelly bar: body bending or cracking

For engineering contractors, quality of the drill tools, kelly bars they purchased are what they pay high attention to. Since if there are some problems with the drill tools, for example, the kelly bars, drill buckets, rock augers, etc, they may delay the progress of the whole project, kelly bar body bending or cracking is also a common problem.

UNIDRILL have the quality control of raw material to serve the life of a kelly bar body.

Moreover, to guarantee the straightness of the kelly pipe, we specially design an alignment platform, and each pipe has to go through a total of 3 times alignment during the processing before assembling, the straightness can reach up to 1.5-2mm per meter.

With a high standard of straightness, our Kelly bars can always work smoothly and efficiently.

In addition, the high straightness is very helpful to improve the verticality of the pile.

The article is written by Drillmaster [email protected], no one may reprint it, otherwise we will pursue the legal responsibility