Qu'est-ce qu'une grue portique ?

A gantry crane is a heavy-duty lifting device with ground-supported legs and a horizontal bridge. It operates on ground-level rails, unlike overhead cranes hanging from building structures. Therefore, Dafang gantry cranes handle containers, steel beams, heavy machinery, and bulk materials in manufacturing, logistics, and construction industries.

Here, a gantry crane is explained in detail, including its definition, structure and components, working principle, application, specs etc. You learn more info about a gantry crane for your needs.

Introduction to Dafang Gantry Cranes

A gantry crane is a large outdoor lifting device with a door-shaped steel frame mainly for heavy-load handling. Comply with the international safety standards (CE, ISO, EAC etc.), it eliminates the need for manual handling of bulky items and reduces workplace injuries while boosting efficiency.

Gantry crane is a heavy-duty lifting device distinguished by ground-supported legs (unlike overhead cranes hung from roofs), with a horizontal main girder spanning between its legs. It handles 5-300 tons, suiting medium-to-heavy tasks.

The common types of gantry cranes include pont roulant à poutre unique, pont roulant bipoutre, semi-portique (one leg on rail, one on the ground for narrow spaces), truss type gantry crane ou container lifting type gantry crane. Its different design enables flexible, long-distance lifting, fitting outdoor large-scale material transport needs.

Key Features:

  • Various Types: Single Girder, Double Girder, Truss Type, Semi-beam Type, Container Lifting Type
  • Gamme de capacités: 1-800 tons
  • Ground-Based Operation: No building structure required
  • Capacités extérieures: Weather-resistant design for open-air use
  • Flexible Coverage: Moves along rails for wide-area material handling

Il comporte des composants clés : poutres maîtresses (structure porteuse supérieure), jambes de soutien (raccordement des poutres au sol), un chariot de voyage (se déplace le long des poutres), et un mécanisme de levage (lifts goods via hooks/spreaders). Unlike EOT cranes (running on overhead factory rails), its legs ride on ground rails, letting it operate in open areas. It’s widely used in ports, freight yards, and heavy industry to handle containers, steel beams, or large machinery.

Dafang Gantry Crane Structure and Components

The gantry crane consists of main beam, raveling trolley, supporting legs, the hoisting mechanism, gantry crane traveling mechanism, the power supply system, cab, safety devices and other pièces de rechange pour grue. The functions of each indispensable part are as follows:

  • Poutre principale: The top load-bearing core structure that supports the traveling trolley and the weight of lifted goods.
  • Chariot de voyageSe déplace le long des rails sur la poutre principale, transportant le mécanisme de levage pour réaliser le transport horizontal de la cargaison.
  • Jambes de support: Structures verticales reliant le tablier principal au sol, assurant la stabilité de la grue ; certaines sont munies de roues pour se déplacer sur des rails au sol.
  • Mécanisme de levage de grueInstallé au bas des pieds de support, propulsant l’ensemble de la grue pour se déplacer le long de rails au sol pour une opération à longue distance.
  • Mécanisme de levage: Comprend le moteur, le tambour et le câble en acier ; fait monter et descendre le crochet pour effectuer le levage et l'abaissement d'objets lourds.

Différents types de ponts roulants

Gantry cranes can move or lift materials in construction sites, bridge construction sites, shipbuilding sites, hydropower plants and ore zones. Grue de Dafang, a professional gantry crane manufacturer and supplier in China, offers different kinds of gantry cranes. Such as single girder gantry cranes, double girder gantry cranes, semi gantry cranes, truss gantry cranes etc.

If you want to better understand different types of gantry cranes and their application scenarios. The following article will help to choose the most suitable types of gantry cranes to enhance productivity.

Grue portique monopoutre

Poutre roulante monotrave MH

  • As the most standard and widely used single girder model, it features a single box-type ou truss-type main girder.
  • Capacité: 5-32 tonnes
  • La portée: 3-31.5 meters
  • Applications: Warehouses, small freight yards, construction sites
  • Avantages: Lower cost, lightweight structure, easy installation
  • Meilleur pour: Light-to-medium loads, budget-conscious operations

Grue portique monopoutre de type L

  • It has an L-shaped support leg. One side is short (closely attached to walls or columns), and the other side is a standard long leg (riding on ground rails). It saves horizontal space and is suitable for narrow working areas.
  • Capacité: 5-20 tons
  • Conception: L-shaped leg saves horizontal space
  • Applications: Narrow workshops, factory edge areas and small logistics yards
  • Avantages: Space-efficient for constrained layouts

Grue portique bipoutre

Grue portique bipoutre de type U

  • The unique U-shaped main girder structure allows long or bulky goods (e.g., steel beams, large profiles) to pass through the girder gap easily.
  • Capacité: 5-550 tons
  • Conception: U-shaped girder allows long cargo to pass through
  • Applications: Steel plants, profile processing workshops
  • Avantages: Handles oversized loads, excellent lateral stability

Grue portique bipoutre de type A

  • Featuring A-shaped support legs, this design reduces wind resistance, enhances structural rigidity, and saves space at the leg base.
  • Capacité: 5-800 tons
  • Conception: A-shaped legs reduce wind resistance
  • Applications: Ports, large freight yards, heavy machinery factories
  • Avantages: High structural rigidity, harsh environment capability
  • Indice de service: A5-A7 for intensive operations

Container Yard Gantry Crane

Rubber Tyre Yard Gantry Crane

  • The unique U-shaped main girder structure allows long or bulky goods (e.g., steel beams, large profiles) to pass through the girder gap easily.
  • Mobilité: Diesel or electric-powered wheels
  • Flexibilité: Repositionable across yard
  • Applications: Container terminals, intermodal facilities
  • Capacité: 40-65 tons (loaded containers)

Rail Mounted Container Gantry Crane

  • Featuring A-shaped support legs, this design reduces wind resistance, enhances structural rigidity, and saves space at the leg base.
  • Opération: Fixed rail system
  • Avantages: Lower operating costs, automated capability
  • Applications: High-volume container terminals
  • Capacité: 40-50 tons with precise positioning

Portique semi-portique

Poutre simple Portique semi-portique BMH

  • Doté d'une poutre principale unique, avec un jeu de pieds d'appui roulant sur des rails au sol et l'autre côté s'appuyant sur des murs d'usine ou des colonnes en béton.
  • Capacité: 2-10 tons
  • Applications: Narrow workshops, small yards
  • Cost: Lower than full gantry cranes
  • Installation: Utilizes existing building structure

Poutre double grue semi-portique BMG

  • Adopts two parallel main girders, with one side having support legs (on rails) and the other side supported by fixed structures.
  • Capacité: 5-320 tons
  • Applications: Heavy industry workshops, large freight yards
  • Performance: Heavy-duty operations with frequent use

Portique à treillis

MH Single Girder Truss Gantry Crane

  • Dispose d'une poutre principale à treillis unique (structure légère et économique en matériaux) avec un chariot déporté fonctionnant sur un côté de la poutre.
  • Capacité: 5-20 tons
  • Avantages: Lower self-weight, reduced cost, easy maintenance
  • Applications: Small factories, warehouses

MG Double Girder Truss Gantry Crane

  • Adopts two parallel truss main girders, with the trolley moving between the two girders.
  • Capacité: Up to 300 tons
  • Applications: Ports, heavy industry, large-span coverage
  • Performance: High working class for continuous operation

What is a gantry crane used for?

A gantry crane is suitable for open-area heavy-load lifting and transport across multiple sectors:

  • Industrie sidérurgique: In steel production facilities, users use these gantry cranes extensively for lifting and moving steel products. Steel products include steel billets, types of steel, and steel profiles.
  • Fabrication de machines lourdes: In the assembly process of heavy machinery, clients usually employ Dafang gantry cranes for assembling large-scale machine components. These components have massive engine blocks and the structural frames.
  • Entreposage et logistique: In the warehousing and logistics sector, these gantry cranes are responsible for moving heavy cargo from one place to another, and also for handling industrial equipment that is often bulky and difficult to move by other means.
  • Ports & Terminals: At ports and terminals, customers use them for container handling operations. They need to load and unload containers from ships and trucks and transfer bulk material.These cranes also deal with materials which needs to be handled carefully, like coal, and ore.
  • Chantiers de construction: On construction sites, like handling high-rise buildings and bridge projects, users use them for transporting cement, sand, and bricks. Moreover, they also transport reinforcement materials like steel bars, and precast components.
  • Shipbuilding: In the shipbuilding industry, Customers use them for the assembly of large sections of ships. During the hull construction process, these cranes could lift and position huge ship components.

Spécification de portique

Grue portique monopoutre

Mode principalL/MH/BMH
Capacité de levage1-32 tonnes
La portée3-31.5 m
Hauteur de levage6-24 m
Vitesse de levage8,0.8/8 m/min, 7,0.7/7 m/min
Température de travail-25℃~+40℃
Alimentation électrique3 phases AC 380V 50HZ
Mode de contrôleTélécommande/Commande par câble/Commande en cabine (personnalisé)
Obligation de travailA3-A5

Grue portique bipoutre

Mode principalA/U/BMG
Capacité de levage5-800 tonnes
La portée5-35 m
Hauteur de levage5-30 m
Vitesse de levage2-8 m/min, 1-20 m/min
Température de travail-25℃~+40℃
Alimentation électrique3 phases AC 380V 50HZ
Mode de contrôleTélécommande/Commande par câble/Commande en cabine (personnalisé)
Obligation de travailA3-A7

Avis : Les articles énumérés ne le sont qu'à titre de référence. Des solutions personnalisées sont disponibles.

China Gantry Cranes Types Quotes

Les typesCapacité de levagePrix (USD)
Grue portique à une poutre1-32 tonnes$5000 ~ $60000, depending on specifications
Double Beam Yard Gantry Crane5-500 ton (Special-purpose modes up to 800 ton)$35000 ~ $80000, depending on specifications
Semi Gantry Crane (Single/Double Beam)2-10 ton, 5-320 ton$12000 ~ $500000, depending on specifications
Truss Gantry Crane (Single/Double Beam)3-20 ton, 60-300 ton$8000 ~ $600000, depending on specifications

How to Choose the Right Gantry Crane Type

Consider These Factors:
  • Capacité de charge: Maximum weight including rigging equipment (add 20-30% safety margin)
  • Span Requirements: Distance between support points
  • Hauteur de levage: Vertical distance from ground to highest position
  • Cycle de travail: Operating hours and frequency (A3 light, A5 moderate, A7 heavy)
  • Environment: Indoor vs. outdoor, temperature extremes, corrosive conditions
  • Space Constraints: Full gantry vs. semi-gantry for limited width
  • Budget: Initial cost vs. operating costs over equipment life
Selection Rules:

Under 20 tons + limited budget: Single girder gantry crane

20-100 tons + frequent use: Double girder gantry crane

Space-constrained: Semi gantry crane

Large spans (30m+): Truss gantry crane

Container handling: RTG or RMG specialized cranes

Professional Gantry Crane Supplier in China

Now, you must have a comprehensive understanding of what is a gantry crane and you must know how to choose the most suitable types of gantry cranes to improve your working efficiency.

If you have interests in eot cranes, freestanding cranes, yard cranes, jib cranes, port cranes or crane parts, just directly contact our technicians and business manager. Later we will offer you the most professional guidance and support.

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Why Choose Dafang Gantry Cranes

Henan Dafang Heavy Machinery Co. Ltd. is a top 10 crane manufacturer in China with 20 years of gantry crane manufacturing experience. We've delivered 80,000+ units to 130+ countries worldwide.

Dafang Crane Supplier's Advantages:

  • Complete product range: single/double girder, semi, truss, container cranes
  • Custom engineering for specific applications
  • International certifications: CE, ISO, EAC
  • Professional installation guidance and training
  • Long-term spare parts availability
  • Competitive pricing with proven quality
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Get Your Gantry Crane Quote

Whether you need a 5-ton single girder gantry crane for your warehouse or a 300-ton double girder system for heavy industry, our engineering team provides application analysis and competitive quotations.

Contact Dafang Crane for technical specifications, pricing, and delivery information tailored to your material handling requirements.

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Henan Dafang Heavy Machinery Co. Ltd.

-Professional Gantry Crane Manufacturer & Supplier in China