Choosing the right crane type is crucial for matching the working conditions, environment, and core parameters, avoiding safety hazards and cost waste caused by overkill or insufficient capacity.
First, clarify the four core elements:
Usage Scenarios and Locations
Indoor Workshops/Warehouses → Prioritize overhead cranes (gantry cranes) or KBK light-duty cranes; their compact structure is suitable for fixed-point lifting.
Open-air Freight Yards/Port Terminals → Select gantry cranes (traverse cranes) or portal cranes; they are wind and rain resistant, with large spans and high lifting capacities.
High-Rise Building Construction → Tower cranes are essential; their height and coverage radius offer significant advantages.
Multiple Site Transfers and Emergency Lifting → Truck cranes or crawler cranes are more flexible and can be moved quickly.
Lifting Capacity and Load Characteristics
Define the maximum lifting capacity (including the weight of the lifting equipment) and allow for a 10%~20% margin to handle unexpected needs.
For frequently lifting extremely heavy items, consider using two cranes simultaneously, but the load on a single crane must not exceed 80% of its rated lifting capacity.
Operating Span and Space Limitations
The span of bridge/gantry cranes should be slightly smaller than the factory building or track spacing; a 1.5-meter safety distance is recommended.
For indoor use, pay attention to the clearance height to ensure the lifting height can clear obstacles and complete unloading.
Working Frequency and Working Class
For high-frequency operations (such as assembly lines and prefabrication plants), select equipment with a working class of A6 or higher to ensure durability.
For occasional use or light-load scenarios, A3~A5 level equipment can be selected to reduce costs.
