Kelly 80x80mm 2 set are shipped to Uzbekistan

We have recently completed the production of the Kelly 80x80mm and are shipping it to Uzbekistan. Kellys are designed to transmit the rotational torque of the rotor to the drill string during well drilling. Their cross-section can be square, hexagonal, or cross-shaped, with a hole for the passage of fluid.
The paired Kelly consists of two parts: an upper part and a lower part, connected to each other by a special threaded joint that ensures the alignment of the faces (of the square or hexagon). The operation of paired Kelly is subject to the same standards and requirements as those applied to standard leading drill pipes. It has a threaded pin end (connected to the drill string) and a threaded box end (connected to the swivel of the drilling rig).

Technical Parameters for Drill Pipe (Kelly) 80x80
Length, L – 11,300 mm
Material – AISI 4145H
Pin end diameter, Dn – 105 mm
Box end diameter, Dm – 105 mm
Bore diameter, d – 51 mm
Square side, S – 80x80 mm
Circumference description, D3 – 105 mm
Box end thread per GOST 50864 – Z-86L (NC31)
Pin end thread per GOST 50864 – Z-86 (NC31)
Working pressure – 35 MPa