sales@unikelly.com
UNIDRILL kelly bar could match with different types of BAUER drilling rig. Companies who are looking for good brand and high good quality interlocking kelly bars or frictions kelly bars, hope could take this chance to inquiry UNIDRILL kelly bars. UNIDRILL bore piling kelly bar has been in the industry in more than 10 years,doyouknow what are good components for a good bore pile drilling kelly bar? How to evaluate a bore piling kelly bar's quality? Firstly, the raw material plays the greatest impact. To the materials, as a bore pile drilling tools manufacturer, UNIDRILL bore piling kelly bar factory adopt top quality seamless steel tube from China's leading steel factory. The material of 1st-2nd section is Q345B, the 3rd-5th section is 35CrMo. Features of 35CrMo feature is high static strength( the article is written by Drillmaster info@drillmastergroup.com, no one may reprint it, otherwise we will pursue the legal responsibility), impact toughness and high fatigue limit, good wear resisting. Material of kelly bar drive gib is 30CrMnTi hardening ( in China, other suppliers use 20CrMnTi). Why use 30 CrMnTi as the material of kelly bar drive gib, because:
30CrMnTi hardening gib was made by several multiple drawings and heat treatments
High strength, great toughness, with good abrasion-resistance on the surface
Without any cross breaking during bad condition formation.
The matrial of UNIDRILL kelly box is 35CrMoHardening, integrally forged. Forging and forming of high strength steel into a ingegrally unit, with multiple heat-treatment, with high impact and fatigue resistance, that’s also the reason why UNIDRILL bore pile drilling kelly bar is so durable in use.
Note: The ownership of the article belongs to DRILLMASTER, and no one may reprint it, otherwise we will pursue the legal responsibility.
