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Grúa pórtico de una viga MH

  • Capacidad de elevación: 3-20 toneladas
  • Alcance: 7.5-31.5 metros
  • Altura de elevación: 6-24 metros
  • Mecanismo de Elevación: Polipasto Eléctrico CD/MD
  • Certificados: CE/ISO
  • Grado de trabajo: A3-A5
  • Working Temperature: −20°C to +40°C

    Product Overview

    The Dafang MH single truss gantry crane is a CE/ISO-certified, rail-mounted outdoor truss gantry crane offering 3–20 ton capacity, 7.5–31.5 m span, and up to 24 m lifting height. Its hollow triangular truss beam reduces wind load by 40% and overall weight by 30%, making it the leading choice for open yards, freight stations, and port branches worldwide.

    Dafang single girder truss gantry crane combines the advantages of single beam structure with truss beam design. Truss gantry crane features light weight, compact structure and easy disassembly and assembly. This type of truss gantry crane is usually for light to medium loads (≤20 tons) in manufacturing workshops, logistics warehousing, open storage yard, and mining and quarry sites.

    Structure and Main Components

    Truss Main Beam

    The primary load-bearing element. The truss beam is a structure with multiple triangular frames. It consists of angle steel and channel steel members welded and bolted into isosceles triangular units. The truss profile reduces material usage and shipping crane weight while maintaining rigidity and stability under rated loads.

    Supporting Legs and Ground End Beams

    Shaft-connected to the main beam for tool-free disassembly, container packing, and rapid re-erection on-site. Flanged-wheel travel bogies run on embedded steel rails with motorized drives for smooth start/stop. High-quality polyurethane buffers at each end limit impact forces and extend structural service life.

    Polipasto eléctrico CD/MD

    The lifting mechanism of single beam truss crane is CD MD type electric wire rope hoist. It traverses along the lower flange of the main I-beam. It enables gantry crane to move horizontally along the ground or a dedicated track to expand the operating range. CD series hoist: single-speed lifting. MD series hoist: dual-speed (precision placement + production throughput). Both covered with rainproof housings as standard for outdoor environments.

    Sistema de control eléctrico

    Overload protection relays, upper/lower limit switches, emergency stop circuits, and low-voltage protection guard against supply fluctuations common at remote construction and port sites. Ground pendant control is standard; cabin-mounted and radio remote options available.

    Why Truss-Structure Outperforms Box-Beam Designs Outdoors?

    The defining feature of the MH single truss gantry crane is its main beam: built from triangular truss units — interconnected angle-steel and channel-steel members — instead of a solid welded box. This lattice geometry achieves the same load-bearing performance while delivering three measurable advantages that matter most in outdoor and high-wind environments.

    40%

    Lower wind load — hollow truss profile lets wind pass through instead of catching it, reducing structural stress in open-yard operations.

    30%

    Lighter self-weight than equivalent solid box-beam cranes — reducing foundation requirements, rail loading, and ocean freight costs.

    20 days

    Typical export lead time after order confirmation — bolt-together components pack into standard 20' or 40' containers.

    60+ Countries

    where Dafang cranes are in active operation — CE/ISO ensures smooth customs clearance in the EU, Middle East, and Southeast Asia.

    Truss Gantry Crane Application Environments

    🏛️Bridge & Civil Construction: Handling construction project component installation and reinforcing steel work.

    🏗️Open Storage Yards: Handling steel pallets, timber, precast concrete materials and so on.

    ⛏️Mining & Quarry Sites: Handling granite, cement pipe, and aggregates for mining projects.

    🏭 Manufacturing Workshops: Handling parts and hoisting semi-finished products in production workshops, for flexible operation in limited space.

    🚢Port Branch Terminals: Handling and stacking small containers and pallets, especially suitable for temporary work sites or small terminals.

    📦Freight & Logistics Warehousing: Loading, unloading, and handling materials in warehouses with efficient space use.

    Nota: Not suitable for lifting molten metal, flammable materials, or explosive substances.

    Full Technical Specifications

    All parameters reflect Dafang's standard MH series production range. Custom spans, capacities, lifting heights, and control systems are available — contact our engineers for a tailored quotation.

    Parameter of MH Truss CraneStandard RangeNotes
    Capacidad de elevación3 – 20 tonCustom capacities available on request
    Ancho de vía7.5 – 31.5 mMatched precisely to site width
    Altura de elevación6 – 24 mAdjustable to pile height and clearance
    Mecanismo de elevaciónCD1 / MD1 Electric HoistSingle-speed or dual-speed options
    Grado de trabajoA3 – A5Light to medium duty cycle
    CertificaciónCE · ISOFull documentation supplied
    Temperatura ambiente−20°C to +40°CSuitable for tropical and cold-climate sites
    Modo de controlCab / Remote / Floor ControlRemote control available for operator safety
    Cantilever OptionNone / Single / DoubleExtends working range beyond support legs
    Beam MaterialQ235 / Q345 structural steelHot-dip galvanised or epoxy-painted
    Estructura de la viga principalTriangular truss units40% lower wind load vs solid beam
    Dispositivos de seguridadOverload protector · Limit switches · E-Stop · Low-voltage protectionCE-compliant safety package standard
    Export Packaging20' / 40' container, wooden palletDisassembled for maximum freight efficiency
    Tiempo de entrega~20 days after depositShipped FOB Qingdao / Tianjin

    Fabricante profesional de grúas pórtico de truss simple

    Why Import from Dafang Crane?

    • CE & ISO Certified Production: Full certification documentation for customs clearance in 60+ countries
    • Free Engineering Customization: Span, capacity, lift height, control mode, and cantilever options tailored to your site
    • 📦 Container-Optimized Packing: Disassembled into 20' or 40' containers to minimize ocean freight cost
    • 🛠 On-Site Installation Support: Remote commissioning guidance and optional engineer dispatch for complex projects
    • 📋 Full Documentation Package: CE declaration, test reports, operation manuals, and spare parts lists with every order
    • 🌍 Global Export Track Record: References in the Middle East, Southeast Asia, Africa, and Latin America on request

    Ready to Source Your MH Single Truss Gantry Crane? Share your lifting capacity, span, lifting height, and site location — our engineers respond within 24 hours with a technical proposal and FOB price. Request a Free Quote ↗

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    FAQs of Dafang Single Truss Gantry Crane

    What is the lifting capacity range of the MH single truss gantry crane?

    The standard range is 3–20 tons. Custom configurations beyond 20 tons are available on request, suitable for small to medium-capacity outdoor loading and logistics operations. Why is a truss structure better than a solid box beam for outdoor gantry cranes?

    Why is a truss structure better than a solid box beam for outdoor gantry cranes? 

    The hollow triangular lattice reduces wind load by 40% and overall crane weight by 30% versus solid-beam models, making it significantly more stable and cost-efficient in open-yard, high-wind environments. Does the MH single truss gantry crane ship with CE and ISO certification?

    Does the MH single truss gantry crane ship with CE and ISO certification?

    Yes. Every unit ships with CE declaration of conformity and ISO certificates, meeting import compliance requirements for the EU, Middle East, Southeast Asia, and other regulated markets. Can the MH truss gantry crane be customized with cantilever arms?

    Can the MH truss gantry crane be customized with cantilever arms? 

    Yes — available with no cantilever, single cantilever, or double cantilever to extend the working range beyond the support legs without additional track or infrastructure investment. What is the typical export lead time from Dafang Crane in China?

    What is the typical export lead time from Dafang Crane in China?

    Approximately 20–30 days after deposit. Components disassemble and pack into 20' or 40' containers to minimize ocean freight costs, shipped FOB Qingdao or Tianjin.

    Dejar mensaje

    Dafang suministra puentes grúa, grúas pórtico, plumas giratorias, polipastos eléctricos y piezas de repuesto para grúas de alta calidad, etc. Puede rellenar el siguiente formulario y nos pondremos en contacto con usted lo antes posible.

    Gestor de cuentas

    Stella

    Número de teléfono 86 0373 2157333
    Whatsapp+8613603732637
    Correo electrónico [email protected]