Choosing between a 50 ton gantry crane and a 60 ton gantry crane should not be based only on the heaviest load currently handled. The correct capacity depends on the actual lifted load, lifting accessories, load distribution, duty cycle, lifting height, span, operating conditions, and expected future requirements. A 50 ton crane may be sufficient … Read more
Choosing a straddle carrier for heavy precast concrete handling starts with the load, not the machine. The most important factors are the maximum load weight, load dimensions, lifting height, required travel distance, yard surface, handling frequency, and available power supply. A carrier designed for 40-ton precast elements, for example, may be unsuitable for a 70-ton … Read more
A straddle crane is a specialized mobile lifting and transportation machine designed to handle oversized and heavy components by carrying the load inside its supporting frame. In bridge construction applications, straddle cranes are mainly used for transporting precast concrete bridge girders, box beams, bridge segments, and other large infrastructure components. Unlike traditional crane-and-trailer combinations, a … Read more
In precast concrete yards, a 100-ton gantry crane is a core piece of heavy equipment. It is primarily used for stripping forms, moving, stacking, and loading large elements such as box girders, T-beams, precast columns, slabs, and tunnel segment liners. Because 100-ton precast components represent substantial static loads and precast yards are typically situated in … Read more
In modern civil engineering and precast concrete manufacturing, heavy precast concrete components—such as precast box girders, T-beams, shield tunnel segment linings, wind turbine tower foundations, and precast wall panels—are widely utilized. These components typically feature large total mass, extended physical dimensions, high structural rigidity, and low tensile strength. In precast yard storage areas, logistics transfer … Read more
As infrastructure construction moves toward industrialization and modularity, the utilization of precast concrete elements across bridges, railways, tunnels, and marine structures continues to expand. Precast components are characterized by large dimensions, substantial dead weight, and complex geometry, imposing specific operational demands on material handling and yard logistics. Straddle carrier cranes – mobile lifting equipment equipped … Read more
In modern urban infrastructure construction—such as subways, elevated roadways, and underground utility networks—spatial constraints at the job site present a primary challenge for project management. Because urban centers are densely built-up with heavy traffic flow, conventional heavy lifting equipment like crawler cranes and tower cranes often fail to meet operational requirements due to their large … Read more
As global infrastructure construction extends further into remote areas with challenging terrain, precast concrete yards play an increasingly central role in highway and railway bridge construction. As the core equipment for hoisting heavy concrete components (such as box girders and T-girders) in precast yards, the energy choice for Rubber Tyred Gantry (RTG) cranes directly impacts … Read more
In the modern container terminal, the Rubber Tyred Gantry (RTG) crane is the engine of the yard. It is the single most significant asset in terms of handling capacity, operational tempo, and long-term maintenance expenditure. When sourcing a manufacturer for these machines, the decision-making process is often clouded by initial acquisition costs. However, experienced terminal … Read more
When choosing an overhead crane with a 20-ton lifting capacity, one of the first and most important design decisions involves selecting between a single girder and double girder configuration. Each type has unique advantages and limitations, especially when working at this medium-to-heavy-duty capacity level. This article explores the key differences between single girder and double … Read more