Product description
Process equipment
Standard version - Uncased drilling
50
Drilling tool
51
Lifting device
52
Rotary drive
53
Shock absorber
54
Kelly driver
55
Kelly bar
56
Kelly guide
57
Rope swivel
Components
Function
Lifting device
Opens the drilling tool.
Drilling tool
Cuts and conveys the drilling debris.
Rotary drive
Generates the rotary motion for drilling. The main gear is
driven by hydraulic motors via the planetary gear.
Shock absorber
Dampens axial shocks to the Kelly bar.
Kelly guide
Guides the Kelly bar along the mast at its upper end.
Kelly driver
Transmits the rotary drive torque to the Kelly bar.
Kelly bar (Kelly)
Transmits the rotary drive torque directly to the drilling tool.
Its length determines the maximum drilling depth.
Rope swivel
Prevents twisting of the main rope.