Beijing Jietaihongli Technology Co., Ltd.
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  • Contact Person : Ms. Zhao Sally
  • Company Name : Beijing Jietaihongli Technology Co., Ltd.
  • Tel : 86-10-15611480283
  • Fax : 86-10-87617588
  • Address : Beijing,Beijing,Room 1717, 3 Building, No.134 Yard, Chengshousi Road, Chaoyang District, Beijing
  • Country/Region : China
  • Zip : 100164

Full interlocking pressurizing kelly bar

Full interlocking pressurizing kelly bar
Product Detailed
Related Categories:Pile Driver
1.high quality and competitive price 2.transmissing the pressuring force best 3applied to the hard layer and high efficiency

   Full interlocking pressurizing kelly bar is also known as concave-convex Kai-type pressurizing kelly bar.

    It is  characterized by external keys which composed by three subcomponent keys, and each external key are composed of fabric by the convex and concave tine. Driving internal keys are also composed of three sub-component keys.and each internal keys are also distributed by the concave and convex tine. The internal keys and external keys with driving force can be formed lock anywhere and  anytime. During the drilling process, the driving force head send pressure directly to drilling head. Currently, the transmission pressure of this drill pipe is the best formation and permafrost; every site of the drill pipe can be formed the pressure point in the course of drilling, avoiding the drill in a part of the pipe wall caused by the pipe-sticking, at the same time, the convex and concave tine distributed in the driving internal key and external key have a good meshing.  the pressurized part contains multi-point pressure ,which makes the kelly bar more efficiently.

Full Interlocking Kelly Bar
TypeO.Dia.(MM)SectionDepth(m)Torque(KN.M)
JT12 340-3x13340336120
JT12 356-3x13356336120
JT15 377-4x14377452150
JT20 406-4x14406452200
JT22 406-4x14406452220
JT25 445-4x15445456250
JT25 445-3x15 (Reinforced)445342250
JT25 470-4x15470456250
JT25 508-4x15508456250
JT28 508-5x15508570280

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