The phrase "arm of a crane" is correct and usable in written English.
It can be used to refer to the long, movable part of a crane that is used to lift and move heavy objects.
Example: "The construction crew carefully maneuvered the arm of the crane to position the steel beams into place."
Alternatives: "boom of a crane" or "jib of a crane".
The arm of a mobile construction crane came loose in Miami, injuring at least one worker and leading to the partial evacuation of a nearby hotel as a precaution.
Jeffrey S. Ashby of the Navy, used the space shuttle Endeavour's 50-foot robot arm like a crane to lift the new station arm from the shuttle payload bay.
Attempting to combine social observation with acknowledgement of various artistic debts, it is a jump-cutting song of love and hate to a post-industrial northern town, where the "lame arm of the crane circling / unstocked shelves of half built car park" is a metaphor for how "the day's spent itself already".
The arm of the crane was also damaged, officials said.
The arm of the crane, he said, appeared to have been lifted and flipped over the cab.
In cases where executions are accomplished by use of a crane, the extended arm is raised slowly, first tautening the rope, then lifting the condemned man from the ground.
As the heavy black arm of the toppled crane lay along the southbound lanes of West Street and a section of the roadway was at times shut down in both directions, emergency workers gathered nearby, and tourists visiting the trade center site whipped out their cameras and video cameras to document the spectacle.
Page A16 New York CRANE OWNER CLEARED IN COLLAPSE THAT KILLED 2 The owner of a crane company was acquitted of all charges in connection with the collapse of a tower crane in Manhattan that killed two people.
The owner of a crane company pleaded guilty on Tuesday to charges that he had bribed the former chief crane inspector for the city's Department of Buildings.
