In large-scale infrastructure construction, energy projects, and heavy industrial installations, the lifting capacity and operational stability of equipment directly determine project efficiency and safety. The Crawler Crane has become an indispensable key piece of equipment in wind power installation, petrochemical construction, bridge erection, and nuclear power projects, thanks to its excellent ground pressure distribution, powerful lifting performance, and ability to travel with loads.
What is a Crawler Crane?
A Crawler Crane is a fully revolving mobile crane that mounts the lifting mechanism on a crawler undercarriage. Unlike truck cranes, Crawler Cranes use crawler tracks for mobility, resulting in low ground pressure and excellent traversability, allowing them to operate stably on complex terrains such as soft ground or muddy sites. Their greatest advantage lies in the ability to perform lifting operations without outrigger support and to travel with loads, significantly enhancing the flexibility and efficiency of large component installation.
Based on boom structure, they are divided into lattice boom and telescopic boom types. The lattice boom Crawler Crane is the main force for large-scale projects due to its high lifting capacity and flexible boom length combinations.
Core Performance Features
Powerful Lifting Capacity: Maximum lifting capacity can reach thousands of tons, meeting the demands of ultra-heavy component installation in nuclear power, petrochemical, and bridge projects.
Strong Terrain Adaptability: Low ground pressure allows stable operation on soft, muddy, or rugged terrain without the need for paved roads.
No Outrigger Support Required: The entire machine relies on the crawler chassis for support, reducing preparation time and making it suitable for operations requiring frequent movement.
Ability to Travel with Loads: Capable of traveling within rated load limits, improving the efficiency of moving large components on-site and reducing the need for auxiliary cranes.
Flexible Boom Combinations: Modular lattice boom design allows for various combinations of main and jib booms based on requirements, with maximum lifting heights exceeding 100 meters.
Excellent Stability: Low center of gravity, large ground contact area, and configurable counterweights provide outstanding anti-overturning stability during heavy lifts.
Main Structural Components
Crawler Undercarriage: Composed of track shoes, drive sprockets, idlers, rollers, and travel motors, providing mobility and stable support. Track width can be selected based on ground conditions.
Revolving Platform: Connected to the undercarriage via a slewing bearing, enabling 360-degree full rotation. The structure is optimized using finite element analysis to ensure strength under heavy loads.
Boom: A lattice structure made of high-strength steel, with main boom lengths ranging from tens to over a hundred meters. Optional fixed or luffing jibs are available.
Hoisting Mechanism: Consists of high-power hydraulic motors, reducers, drums, and wire ropes, utilizing dual-drum synchronization technology to ensure smooth lifting of large components.
Luffing Mechanism: Adjusts the boom angle via a luffing hoist, changing the working radius and lifting height.
Slewing Mechanism: Driven by hydraulic motors and slewing reducers for precise positioning.
Counterweight System: Equipped with removable or self-loading counterweights. Some models feature super-lift counterweight technology for enhanced lifting capacity.
Hydraulic System: Employs load-sensing or electro-hydraulic proportional control for precise operation and energy efficiency.
Control System: Features an integrated PLC control system with a touchscreen and load moment indicator. Remote monitoring and wireless remote control options are available.
Key Application Areas
Large-Scale Construction: Lifting components for nuclear power plants, hydropower stations, stadiums, and super high-rise buildings.
Bridge Erection: Installation of heavy components such as prefabricated beams, steel box girders, and arch ribs.
Wind Power Installation: Lifting turbine towers, nacelles, and blades, adapting to complex terrains like mountains and tidal flats.
Petrochemical Industry: Installation of large equipment including refining units, reactors, towers, and storage tanks.
Ports and Docks: Shipbuilding, port machinery installation, and caisson lifting.
Heavy Equipment Transport: Moving and positioning large transformers, rolling mills, presses, and other industrial equipment.
As a core piece of equipment in heavy lifting, the performance and reliability of Crawler Cranes directly impact the progress and safety of major projects.with years of technical expertise, is committed to providing customers with high-performance, highly reliable Crawler Crane products, helping to overcome heavy lifting challenges and create greater value.
If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
your request will be responsed within 3 hours, kindly pay attention to your email please.
