Parallel operation for single pass method
Higher pull force through synchronisation of several winches – the principle is simple: The main winch (Kelly winch) is engaged to support the crowd winch. The Kelly winch rope is attached to the multi-sledge. This means almost double the pull forces can be achieved.
During drilling and above all when extracting, the control system monitors that the crowd winch and the Kelly winch run at matched speeds and with the correct distribution of pull forces. The ropes on the winches are always taut, so avoiding slack rope.
It also takes the burden of the operator. The automatic control function for both winches is activated by pressing a button on the joystick.
