The Biggest Kelly Bar in the World
This UNIDRILL 930 5*25 kelly bar breaks the world record in diameter! Follow us to check it out!
Outer dia. :930mm
Max. drilling depth:115m
Max. Bearing torque:1500Kn.m?
It is made from forged high-strength steel SY550 and SY850.?
The welding wire is adopted from the high hardness and wear-resistant Sweden ESAB.
We adopt Full Digital Ultrasonic Flaw Detector technology to make sure no cracks and air holes in the steel tube.
In addition, each steel tube will be aligned three times before and after welding to ensure the straightness.
This kelly bar was customized for the biggest rotary drilling rig in the world——XCMG XR1200E
Max. drilling dia. :4600mm
Max. Drilling depth:150m
Max. Torque:1200Kn.m
The biggest kelly bar and biggest drilling rig in the world, What will the performance be like? Follow us for job site conditions!