BAUER BG46 OD470mm INTERLOCK KELLY BAR construction machine parts used Soilmec zoomlion liebherr piling rig

Beijing JieTaiHaoLi Science and Technology Development Co,.Ltd  is a high-tech and comprehensive enterprise integrating  a set of rotary drilling rig  KELLY BAR manufacturing, piling rig accessories sales, a variety of rotary drilling rig overhaul, repair, to provide technology support services, and importing and exporting trade. 

Kelly bars are key components in the execution of boreholes with hydraulic rotary drilling rigs. They transfer the torque of the rotary drive and the crowd pressure of the crowd system concurrently to the drilling tool.

We have 2 types kelly bar, interlocking and friction. The kelly bar length depends on actual needs of customers or the drilling machines' parameters.