Interlocking Rotary Drilling Rig Kelly Bar
Material: Carbon Steel
Place of Origin: China
Supply Ability: 50 units per month
Interlocking Rotary Drilling Rig Kelly Bar used in bored pile rotary drilling rigs.Kelly bar is a key component of hydraulic rotary drilling rig drilling. They transmit the torque of the rotary drive and the pushing force of the pushing system to the drilling tool at the same time.The Kelly rod consists of 2-5 telescopic tubular sections with a drive key and locking groove system welded to its outer surface.A standard kelly bar has manufactured a total of 6 drive keys on each section. The tubular kelly bar part is made of high-strength steel to ensure minimum weight and sufficient strength.