KELLY BAR made by TES METALLIC CARPENTERIES boast a long and sophisticated design from designers and engeers with thirty years of experience in this sector.
While the production is entrusted to expert workers who work with the aid of the latest generation of machine tools.
The types of auctions we offer are both friction and interlocking. In the first case, the telescopic elements slide between them by “frictional” contact. The interlocking rods, on the other hand, are equipped with external guides welded in such a way as to create two or more joints which transfer the thrust force to each individual element.
Our Kelly Bar can be applied on machines with a torque of 2000 kg to 30,000 kg, the tubes with which they are made all have the ST52B certification, the internal and external plates are made of Hardox * steel. In the temples there are square attacks in special steel in 39NCD4. All welds are made with special wires, certified with very high mechanical strength.