Kelly bar friction – friction
Kelly Bar is a central component of the drilling machine. Its high quality directly affects the performance of the drilling machine. The Kelly Bar is responsible for transferring the torque of the rotary drive and the pressure of the crowd system to the drilling tool. The Kelly Bar has a shock absorber system that is activated by a spring.
Ideal for pile drilling and vacuum prevention
Specifications:
2 to 8 telescopic elements for a range of 15 to 140 meters depth
Torque transmission from 120 – 500 kNm