Recently, MOTCRANE supplied a 2-ton foldable knuckle boom marine crane for an overseas ship deck lifting project. The crane will be used for small cargo lifting, equipment handling, and routine maintenance work on board.
Since deck space is often limited, the customer needed a compact crane that could offer flexible lifting without occupying too much space when not in use. Compared with a straight boom marine crane, the foldable knuckle boom design allows the boom to be retracted after operation, making it a practical choice for small vessels, dockside platforms, and offshore work areas.
After reviewing the customer’s lifting requirements, deck installation space, and working environment, MOTCRANE provided a 2-ton marine crane solution suitable for compact marine lifting applications.
The customer needed a small marine crane for routine cargo handling, equipment movement, and maintenance work on board. Since the crane would be installed on a ship deck with limited space, a fixed straight boom crane was not the best option. The customer wanted a compact marine crane that could be deployed easily, folded after use, and operated conveniently by the crew.
The main project requirements included:
For a marine crane project, lifting capacity is only one part of the selection. The crane must also match the deck layout, working radius, slewing range, installation foundation, and marine corrosion protection requirements. If these details are not confirmed in advance, the crane may be difficult to install or may not cover the required working area after delivery.
Based on the customer’s deck layout and lifting requirements, MOTCRANE recommended a 2-ton foldable knuckle boom marine crane. The foldable boom design allows the crane to work in a limited deck area and be retracted after operation, helping reduce obstruction to deck passageways and other equipment.
During the proposal stage, MOTCRANE checked the installation position, working radius, lifting height, load requirement, slewing angle, hydraulic power conditions, and possible classification society certification needs. These details are important for marine crane projects because they directly affect the crane structure, control method, corrosion protection, and final configuration.
This was not a simple selection based only on “2 ton capacity.” The crane was matched according to the customer’s vessel space and actual lifting work, helping reduce the risk of installation problems, insufficient working radius, or unnecessary deck space occupation.
Ship deck space is usually limited, and equipment arrangement must be carefully planned. A straight boom marine crane may take up more space when parked, which can affect deck access or interfere with nearby equipment.
A foldable knuckle boom marine crane offers a more practical structure for compact marine applications. The boom can be extended during lifting and folded back after use, making it suitable for ship decks, dock platforms, and offshore work areas where space needs to be used efficiently.
For 2-ton marine lifting applications, this type of crane is suitable for:
The foldable boom can be retracted when the crane is not in use, helping reduce deck space occupation. This makes the crane easier to arrange on ships, dock platforms, and small offshore work areas.
The 2-ton lifting capacity is suitable for daily lifting of small cargo, spare parts, tools, and equipment. Compared with larger marine cranes, this model is more suitable for frequent auxiliary lifting work in a smaller operating area.
Marine cranes are exposed to humidity, salt spray, and sea wind. MOTCRANE can confirm corrosion protection, surface treatment, electrical configuration, and component protection based on the customer’s working environment.
Marine cranes must match the deck foundation and available installation space. MOTCRANE reviews the installation position, foundation dimensions, working radius, and operating conditions to help reduce on-site installation risks.
If the crane is used for a project that requires classification or ship inspection, the certification requirements should be confirmed at the proposal stage. Common options may include CCS, BV, ABS, DNV, or LR. Different certification requirements can affect design, manufacturing, inspection, and documentation, so they should not be added only after production is completed
The 2-ton foldable knuckle boom marine crane supplied for this project was designed for compact deck lifting applications. The main specifications are listed below:
Crane name: 2-ton foldable knuckle boom marine crane Specification
Lifting capacity: 2 Ton
Arm length: 2m-5m
Lifting height: 6m
Self weight: 650kg
Rotation angle: 360°
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