Industry applications and requirements of crane hooks

As the core component of lifting equipment, crane hooks are widely used in various industrial, construction, port and logistics scenarios. The following are the main application areas and specific uses of hooks:
1. Construction and engineering construction
Tower crane hooks: used for lifting steel, precast concrete parts, formwork and other materials for high-rise buildings.
Crawler/truck crane hooks: used for lifting large components (such as box beams and steel trusses) in bridge construction and foundation construction.
Boom crane hooks: suitable for precise lifting in narrow spaces, such as steel structure installation.
Features:
It must have high load-bearing capacity and anti-sway design, and some working conditions require anti-rotation function. 2. Manufacturing and heavy industry
Metallurgical industry:
Forged hooks are used in high temperature environments (such as ladle lifting) and require heat-resistant steel.
Electromagnetic hooks are used with suction cups to transport magnetic materials such as steel plates and scrap steel.
Automobile/machinery manufacturing:
Special hooks for assembly lines (with rotation function) are used for positioning and installation of engines and car bodies.
The laminated hook is used for frequent lifting of heavy molds.
Features:
High temperature resistance, anti-magnetic interference or precise positioning.
3. Ports and logistics
Container crane hook:
Specialized twistlock hook (such as Twistlock) automatically locks the corner parts of the container.
Port gantry crane hook:
Use grab bucket to load and unload bulk cargo (such as coal, grain), or use C-shaped hook to lift coiled steel.
Features:
High corrosion resistance (such as galvanizing), quick connection mechanism.
4. Energy and power
Wind power installation:
Large tonnage hook (more than 100 tons) to lift wind turbine blades and towers.
Nuclear power field:
Radiation-proof hook is used for handling dangerous objects such as nuclear fuel rods.
Features:
Safety redundant design under extreme working conditions, some of which require remote control.
5. Special application scenarios
Rescue and military:
Fire crane hook is used to lift vehicles or ruins in earthquakes and floods.
The explosion-proof hook of military crane is suitable for hazardous environments.
Aerospace:
High-precision hooks are used with balance beams to lift aircraft parts (such as wings and engines).
Features:
Lightweight (titanium alloy), impact-resistant or anti-static. Key factors for selecting hooks
Load: Select the model according to the rated lifting capacity, considering dynamic load impact.
Environment: Stainless steel or plating is required for corrosive environments, and heat-resistant steel is required for high-temperature applications.
Function: Whether rotation, anti-unhooking or automated connection (such as remote unlocking) is required.
Compliance: Comply with standards such as ISO, ASME B30.10 or GB/T 10051.
Example:
Port container hooks must meet ISO 8309 standards, while nuclear power hooks must pass ASME NQA-1 certification.
Precautions
Regular inspection: including magnetic particle inspection (cracks) and wear measurement (throat opening).
Matching rigging: The connection between the hook and the wire rope and sling must ensure that the angle is ≤120°.
Modification is prohibited: unauthorized welding or drilling will greatly reduce safety.
Through reasonable selection and maintenance, the hook can serve various lifting operation scenarios efficiently and safely.