Color Coated Alloy Steel Full Lock Kelly Bar, Brand Name : KR

Usually full lock kelly bar is composed of three weld-on ribs continuous concave and convex keys. It especillay for hard ground and frozen oil formation layer.When drilling process, the advantage is force uniform, not easy to stick pipe, particular to improve work efficiency.

Why you choose us?

1. Seasoned R&D and Manufacturing Terms

With 15 years of professional experience in Kelly bar design and manufacturing. KR Drilling is capable of providing overall construction solutions and designing customized high quality Kelly bar based on various drilling conditions that the customers encounter. If you require any assistance or would like to discuss this further, warmly welcome visit us!

Our KR Drilling team is always around for full-range service and support. If you require any assistance or would like to discuss this further, please don’t hesitate to contact m

2. Top Quality Raw Materials

The raw materials o f steel pipes we use are supplied by the best manufactures in China with CE certifications. Our Kelly bars are made of high strength alloy-steel tubes with high torsional and compressive strength which will meet the strict requirements for drilling in hard formations.

3. More Life Out of our Wear Parts

The key components such as drive keys, locking recesses are made of high strength and wear-resistant materials with special heat-treatment that would help to improve the life of these parts. The internal drive keys are made of high strength and wear-resistant steel plate. These welded components also undergo special heat treatments. It not only improves the drive keys wear resistant properties, but also the welding properties.

KR Drilling machinery is one of the leading manufactory in China dedicated to providing high quality Kelly bars for piling rigs.  The interlocking and Friction Kelly bar we supplied ranges from Outer diameter 299mm to 630mm, from 3 section to 6 sections, For internationally renowed brands of drilling rig including Bauer Bauer / Soilmec/ Casagrande/ Liebherr/ IMT / Mait / Sany /XCMG/ Sunward/ Zoomlion/ TEG....