Bored piles drilling Interlocking kelly bar for Soilmec drill rig

UNIDRILL kelly bar features introduction: 

The most professional R&D and production team.

The core R&D, processing and production personnel are all from the leading enterprises of this industry, with more than ten years of experience in the design and manufacture of kelly bars. We have provided tailor-made Kelly bar and technical services for almost all the well-known brand names of rotary drilling rigs both at home and abroad.

Top quality special steel materials

The steel pipe used in the Kelly bar comes from the selected materials made by the first-class steel enterprises at home and abroad. The yield strength and service life are more than doubled compared with the general-purpose products, meeting the rigorous requirements in drilling hard rock and various strata.

The cutting-edge manufacturing technology

The core parts of Kelly bar, such as square head, driving keys, and pressurizing point are made of imported steel, and go through special heat treatment and surface strengthening treatment, which not only features high yield strength, wear resistance, impact resistance, strain capacity, welding property and corrosion resistance, but also meets the high reliability requirements of kelly bar in the construction ofhard rock, large diameter and super deep piles.

From the strict control of raw materials to multi-layer and multi-step precise welding, we comply with strict quality standards and monitoring systems in all aspects of kelly bar production to ensure 100% highstandard quality. We are also the first kelly bar manufacturer in China to provide customers with a one-year warranty.