Kelly bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling...
Foundation Equipment Supply (FES) Kelly bars may be made in friction type and locking type, in 3, 4, 5 or 6 elements for some special occasion. For sake of common application, the external diameter is designed to be in universal dimension, such as...
Rotary Drilling Rig Kelly Bar Kelly bars are key components in the execution of boreholes by hydraulic rotary drilling rigs. Teleskopic Kelly bars transfer torque and crowd force from the rotary drive to the drilling tool. Hunan HM Machinery Co is a...
We are offering Kelly Bars. FES kelly bars may be made in friction type and locking type, in 3, 4, 5 or 6 elements for some special occasion. For sake of common application, the external diameter is designed to be in universal dimension, such as...