A crane is a kind of lifting equipment widely used on ships for loading and unloading cargo. There are many ways to classify cranes, and here are some common types:
Classified by structural form
• Slewing crane:
It can rotate 360 to 400 degrees horizontally, with a very wide operating range and the flexibility to lift goods to different positions. The slewing crane is suitable for ship cargo loading and unloading, port operations, offshore engineering, etc., and can meet the lifting and handling needs of goods in different directions.
• Fixed crane:
The fixed crane installed in a fixed position is usually used for operations in specific areas, such as in some factories, warehouses, or docks. The fixed crane can be used to lift and handle goods at specific loading and unloading points or working areas, and it has the characteristics of a simple structure and good stability.
Classified by lifting capacity
1
The lifting capacity is relatively small, generally used to lift lightweight goods, such as small equipment, parts, etc. It is commonly found in some small ships, factory workshops, warehouses, and other places, with the advantages of flexible operation and a small footprint.
2
With a moderate lifting capacity, it can meet the loading and unloading needs of most general cargo. It is widely used in all kinds of cargo ships, port terminals, etc., and is a more common type of crane.
3
It has a large lifting capacity and can be used to lift large machinery and equipment, heavy components, and other overweight goods. It is often used in large ports, shipyards, offshore oil platforms, and other places and can complete some operations with high lifting requirements.
Classified by boom form
• Straight-arm crane:
The boom is a straight rod structure with a simple structure and good stability, and it can reach a long working radius. It is suitable for work scenarios that require a long arms length and large lifting capacity, such as long-distance cargo lifting operations on ships or loading and unloading large goods at ports.
• Telescopic-boom crane:
The boom can change its length through the telescopic mechanism, which has strong flexibility and adaptability. It can adjust the arm length according to different operation needs and operate in different working radii and height ranges. It is often used in construction sites, road rescue, and other places.
• Knuckle-boom crane:
The boom is composed of multi-section booms, which can change their shape and length by folding and extending. It is relatively compact when stowed, which is convenient for the docking and sailing of ships. It is suitable for scenarios that require flexible adjustment of the arm length and working radius, such as cargo loading and unloading in narrow spaces or aerial work in urban environments.
•Telescopic knuckle-boom crane:
Its boom is composed of multi-section retractable booms. The boom can not only be telescopic but also foldable. The telescopic knuckle-boom crane has both telescopic and knuckle-boom functions, making it extremely flexible during operation. It can quickly adjust the length and angle of the boom according to the actual working conditions, accurately lift the goods to the designated position, and adapt to various complex loading and unloading scenarios.
