Crane Industry Terminology: A Comprehensive Guide
All-Terrain Crane: A versatile crane designed to operate on both paved roads and rough off-road conditions. It combines features of both truck-mounted and rough terrain cranes.
Articulating Crane: A type of crane with a boom that folds and unfolds, also known as a knuckle-boom crane. It is typically mounted on a truck for easy transport.
Boom: The long, telescopic or fixed arm of the crane used to move loads.
Boom Truck: A crane mounted on a commercial truck chassis, used for lifting and transporting materials.
Ballast: Heavy material placed on a crane to provide stability during operations.
Counterweight: Weights placed on the crane to counterbalance the load being lifted, enhancing stability.
Crawler Crane: A type of crane with tracks (like a tank) that allow it to move around a job site, offering excellent stability and mobility on soft ground.
Derrick: A lifting device composed of one or more poles or booms hinged freely at the bottom, used in construction and shipbuilding.
Dynamic Load: The load caused by moving or changing forces, which can impact the crane's stability during operations.
Electric Crane: A crane powered by electricity, often used in factories and warehouses for indoor lifting tasks.
Engineered Lift: A lift that requires detailed planning and engineering due to complexity or heavy loads.
Fly Jib: An extension added to the end of a crane's boom to increase its reach.
Freestanding Crane: A crane that is not attached to any structure and is supported by its own base.
Gantry Crane: A crane that uses a bridge-like structure supported by legs that move along tracks, typically used for lifting heavy loads in shipyards and ports.
Ground Pressure: The pressure exerted by the crane on the ground, important for ensuring stability and preventing ground collapse.
Hoist: The component of a crane used to lift and lower loads, often involving a drum or lift-wheel around which a rope or chain wraps.
Hook Block: The assembly of hook, swivel, bearings, sheaves, pins, and frame suspended by the hoisting ropes.
Industrial Crane: Cranes designed for use in industrial settings, often characterized by high capacity and versatility.
Inspection: Regular checks and assessments performed on cranes to ensure safety and functionality.
Jib: The part of the crane that extends horizontally from the boom, used to support and extend the reach of the load hook.
Jib Crane: A crane with a horizontal arm (jib) that supports a movable hoist, typically mounted on a wall or floor pillar.
Load Capacity: The maximum weight a crane can safely lift.
Luffing Jib: A type of jib that can be raised or lowered to move the load closer to or further away from the crane's base.
Mobile Crane: A crane mounted on a wheeled or tracked vehicle, capable of traveling on public roads and moving around job sites.
Mast: The vertical part of a tower crane or derrick that supports the jib and counterweights.
Outriggers: Extendable supports that provide additional stability to a crane, especially during lifting operations.
Overhead Crane: A crane with a traveling bridge that runs on elevated tracks, often used in industrial environments.
Payload: The weight of the load being lifted, including any attachments or rigging used.
Pendant Control: A control device, typically handheld, used by an operator to remotely control a crane's functions.
Radius: The horizontal distance from the center of the crane's rotation to the load hook.
Rigging: The system of ropes, chains, slings, and other devices used to lift and move loads safely.
Sheave: A pulley with a grooved wheel used to change the direction of a rope or cable in a crane's hoist system.
Slew: The rotation of the crane's boom or superstructure on its base.
Static Load: The weight of the load that a crane is lifting without any movement or dynamic forces involved.
Telescopic Crane: A crane with a boom that can extend or retract using a series of tubes fitted one inside the other.
Tower Crane: A fixed crane with a vertical mast and horizontal jib, commonly used in high-rise construction.
Working Load Limit (WLL): The maximum load that a piece of rigging equipment can safely lift under specific conditions.
Winch: A mechanical device used to wind in or out a rope or cable to lift or move loads.
Yard Crane: A crane used in rail yards, shipping ports, and storage facilities to move containers and large loads.
Zone of Influence: The area around a crane affected by its operations, including potential hazards like falling loads or swinging booms.