Precast Component "Stable Transportation Master" - Multi-Point Lifting Frame, Safely Transporting Heavy Concrete
In engineering fields such as bridge construction and prefabricated buildings, the lifting of heavy precast concrete components (such as box girders, segments, and large roof panels) is crucial for construction efficiency and safety. These components are often heavy and uniform in size, yet require extremely stable lifting. Traditional lifting equipment can easily cause component cracking and misalignment due to uneven force distribution. This multi-point lifting frame, specifically designed for heavy precast concrete components, enables "high-tonnage, high-precision" lifting in one step.
Technical Parameters:
| Lifting Capacity | 100t～500t (supports customized load design and can be accurately matched according to the weight of prefabricated components) |
| Lifting Point Configuration | Standard configuration: 12 sets of lifting points (expandable to 24 sets), lifting point spacing adjustable from 0.8m to 2.5m, single lifting point rated load ≥ 40t |
| Dimension | Length: 12m-25m (customizable to accommodate precast components of varying lengths) Width: 3m-6m (covering the widths of common precast box girders and segments) Height: 1.5m-2.2m (to ensure rigidity and operating space for the frame) |
| Material and Strength | The main body is made of Q460 high-strength alloy structural steel with a yield strength of ≥460MPa and an overall safety factor of ≥6 (far exceeding industry standards and more reliable in dealing with "sudden stress" of concrete components) |
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Compatible Device |
Compatible with gantry cranes, bridge cranes, rubber-tyred beam hoists, etc., and the traction interface matches the GB/T 3811 lifting equipment standard |
Three core designs address the pain points of precast component lifting.
① Multi-point coordination ensures "even, breathing" force distribution.
The frame utilizes a distributed multi-point layout (the dense and scientific point arrangement is evident from the structure), precisely distributing lifting force at each location based on the size and center of gravity of the concrete component. Whether it's an extra-long concrete box girder or a large segment, multiple lifting points can be used to simultaneously lift the component, evenly distributing stress. This prevents cracks and deformation caused by localized stress concentration, ensuring the precast component arrives at the work site in pristine condition.
② Heavy-duty load-bearing capacity, capable of handling thousands of tons of weight
To address the heavy weight of precast concrete components, the main frame utilizes a high-strength alloy structure and enhanced welding techniques, with a load rating covering a wide span (heavy-duty specifications can be customized upon request). Even large concrete components like the one pictured can weigh hundreds of tons, thanks to its robust structure, the frame can stably support the transport of precast bridge components and the installation of core components for prefabricated buildings.
③ Adaptable design, precisely fitting the precast component
The frame's dimensions and lifting point spacing can be customized to perfectly match precast concrete components of varying shapes (rectangular, curved, etc.) and specifications. When used with specialized lifting equipment (such as hooks and chains), it enables seamless integration of components and the hoist frame. This ensures smooth component movement and shifting during the lifting process, significantly improving positioning accuracy. This advantage is particularly pronounced in applications requiring precise alignment, such as bridge segment assembly and precast floor panel installation.
Empowering multiple scenarios, precast project efficiency soars.
From the transport and installation of box girders and T-beams in bridge construction, to the lifting of shield tunneling segments in urban rail transit, to the installation of precast columns and precast wall panels in prefabricated buildings... this multi-point lifting frame, with its stability, strength, and wide adaptability, has become a core piece of equipment throughout the entire lifecycle of precast concrete components, from transport at the production plant to installation on the construction site. It helps projects transition from reliance on cast-in-place to efficient precast, enabling faster construction and more controlled quality.