Truss Gantry Crane

Product Introduction

Truss Gantry Crane is a kind of gantry crane that adopts a truss structure as the main girder, the rigid or flexible legs on both sides, and the truss main girder on the top form a gantry frame, which can be moved along the ground track to carry out lifting operations. The truss structure has about 40%-60% air permeability, the wind resistance coefficient is significantly lower than the traditional box girder gantry crane, especially suitable for ports, coastal areas, and other windy places.

The truss structure is usually connected by standardized rods and nodes, which is convenient for factory prefabrication and on-site assembly, easy for inspection and maintenance, and is suitable for engineering occasions requiring frequent disassembling and transferring, such as hydroelectric power station construction, bridge construction, and so on. It is widely used in harbor terminals, bridge construction, power station construction, heavy equipment manufacturing, and other fields.

Types of Truss Gantry Crane

Truss gantry cranes can be customized according to customer needs, with a lifting capacity of 1~20 tons and a span of 10-60 meters. According to different application scenarios, they can be divided into two major types: single girder and double girder truss gantry cranes.

Single Girder Truss Gantry Crane

• A single truss main girder is used, usually arranged above the centerline of the outriggers.
• The lifting trolley runs along the lower flange of the main girder (suspended) or the upper flange (supported).
• Simple structural form, lightweight, and easy installation, maintenance, and dismantling.
• Low foundation load requirement, suitable for sites with average foundation conditions.
• Suitable for small and medium-sized lifting needs (usually ≤ 50t).
• Widely used in small and medium-sized workshop material handling, warehouse loading and unloading, light equipment installation and other lifting capacity requirements are not high occasions.

Double Girder Truss Gantry Crane

• Two parallel truss main girders are used to form a rigid space frame using transverse linkage beams.
• The lifting trolley runs on a track between the two main girders.
• With a large load carrying capacity, the double girders are synergistically loaded, and the lifting capacity can be more than 100 tons.
• Can withstand asymmetric loads, e.g., shipyard outfitting operations.
• Allows two trolleys to work together, e.g., four-point lifting of precast bridge girders.
• Suitable for heavy equipment lifting, such as nuclear power pressure vessels, bridge box girder, and other heavy loads.
• Widely used in large port container loading and unloading, hydroelectric power station gate installation, heavy machinery manufacturing, bridge and building prefabricated parts lifting and loading, and other heavy loads, large span occasions.

Specifications

For detailed product information, please refer to the PDF.

General Application

Ports: For loading and unloading of containers, cargo ships, etc., to improve logistics efficiency.
Shipbuilding industry: Hull assembly, disassembly, and other operations, because it can handle very heavy parts.
Steel industry: Suitable for the handling and loading, and unloading of large items such as steel plates and steel.
Water conservancy construction: Including the lifting of heavy equipment and materials in the construction and maintenance of dams, channels, etc.
Mines: used for the transportation and loading, and unloading of resources such as ore and coal.

Features

Lightweight design: adopting a space truss structure, lightweight, low foundation bearing requirement, suitable for large span operation.

Excellent wind resistance: the open truss structure has low wind resistance, strong wind permeability, and good stability, which is especially suitable for open-air environments, such as harbors and wind power installation operations. The stability is better than box crane in high wind speed areas.

Strong large-span capability: the truss structure can realize a large span (4 to 39 meters) by optimizing the grid layout, which is suitable for bridge construction, power station construction, and other scenarios.

Modular assembly: Segmented truss units, connected by bolts or pins, are easy to transport and quickly assembled on site. Suitable for temporary works or frequent moving operations.

High economy: low material consumption and low manufacturing cost, especially suitable for small and medium tonnage demand; and the lightweight design can reduce the investment in supporting equipment (such as rails and motors).

Flexibility to adapt to complex environments: the structure can be customized, such as triangular, diamond truss; adapt to narrow space or special terrain, such as mountainous areas, offshore platforms, and other special working conditions. Easy to maintain, can locally replace damaged units to reduce costs.

Applicable scenarios: port loading and unloading, wind power equipment installation, bridge erection, temporary construction sites, and other occasions that require lightweight, large span, or wind resistance.

Truss Gantry Crane Supplier - WEIHUA Group

FAQS

What are the differences between truss cranes and box cranes?

Selection Suggestion

Stringer: suitable for lightweight, large span, frequent movement, or open-air operation, such as wind power, or harbor.

Box: suitable for large tonnage, high rigidity, long-term fixed place, such as metallurgical workshop, nuclear power.

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