The Biggest Kelly Bar in the World

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!

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Outer dia. :930mm

Max. drilling depth:115m

Max. Bearing torque:1500Kn.m?

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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.

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We adopt Full Digital Ultrasonic Flaw Detector technology to make sure no cracks and air holes in the steel tube.

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In addition, each steel tube will be aligned three times before and after welding to ensure the straightness.

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This kelly bar was customized for the biggest rotary drilling rig in the world——XCMG XR1200E

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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!

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