Crown Block

Crown Block is a fixed pulley block installed on the top
of the derrick and is one of the important components
of the drilling rig lifting system.It is connected traveling
block with wire line to form a pulley system,which
can greatly reduce the tension of the fast rope, thus
greatly reducing the load of the drilling rig draw
works in various drilling operations (trip,running
casing,drilling,hang drilling tool), and reducing the
power of the engine group