1. Boom: The long, horizontal arm of the crane that extends and retracts to lift and move loads.
2. Jib: An additional extension that can be attached to the boom to increase its reach.
3. Hoist: The mechanism responsible for lifting and lowering loads. It consists of a drum or spool that winds and unwinds a wire rope or chain.
4. Trolley: A unit that travels along the boom or jib and carries the hook that attaches to the load.
5. Counterweight: A heavy weight attached to the rear of the crane to balance the load being lifted.
6. Operator's Cab: The enclosed space where the crane operator sits and controls the crane's movements.
7. Slewing Mechanism: The part that allows the crane to rotate on its base, providing a full range of motion.
8. Outriggers: Extendable supports that are deployed to provide additional stability when lifting heavy loads.
9. Base or Undercarriage: The foundation or chassis of the crane, which can be wheeled, tracked, or stationary.
10. Safety Devices: Cranes are equipped with various safety features, such as limit switches, load sensors, and emergency stop buttons, to ensure the safe operation of the crane.
These are the main components of a crane, and specific types of cranes may have additional or modified parts depending on their design and intended use.