Within the modern industrial material‑handling system, the double girder truss‑type semi‑gantry crane features three key advantages: semi‑gantry configuration, double‑girder load‑bearing capacity and lightweight truss design. It serves as core lifting equipment for workshops, warehouses, yards and outdoor working sites. It effectively addresses common pain points of conventional cranes, such as excessive self‑weight, site constraints and high energy consumption, delivering a highly
cost‑effective solution for medium‑to‑heavy‑duty material handling.
Core Structure: Semi‑Gantry Layout plus Double‑Girder Truss
This equipment adopts a semi‑gantry structure with support on one side and travelling on both sides:
One end: Runs along building columns, wall‑mounted rails or existing overhead crane beams.
The other end: Travels on ground rails via support legs.
Truss main girder: The main girder is welded with high‑strength profiles into a triangular truss structure. While guaranteeing bending resistance, torsional stiffness and heavy‑duty stability, it greatly reduces the overall self‑weight. Its hollow structure brings low wind resistance and excellent wind‑resistance performance for outdoor applications.
Core Advantages: Upgraded Performance, Cost‑efficiency and Adaptability
Lightweight & High Efficiency with Reduced Energy Consumption
The truss structure is 15%‑30% lighter than conventional box‑type girders, featuring low running resistance and lower required motor power. It greatly cuts energy consumption and maintenance costs over long‑term operation, and reduces wear on rails and foundations.
Semi‑Gantry Layout for Maximized Space Utilization
Ground support on both sides is not required. It perfectly fits confined spaces such as workshop edges and transition zones between workshops and yards. It can integrate seamlessly with existing factory structures without occupying extra production space.
Double‑Girder Load‑bearing for Stable & Reliable Heavy‑Duty Operation
The parallel double‑girder design improves overall load‑bearing capacity and running smoothness.
Rated lifting capacity: 3t‑32t
Span range: 5m‑35m
Lifting height: 6m‑30m
It meets medium‑to‑heavy‑duty
material‑handling requirements and delivers accurate positioning.
Strong Site Adaptability for Both Indoor and Outdoor Use
The whole machine adopts anti‑rust and anti‑corrosion treatment. Wind‑proof rail clamps and rain hoods are optional for outdoor conditions. For indoor operation, it features low noise and compact structure to satisfy diverse demands of industrial production and logistics warehousing.
Comprehensive Safety Configurations
Standard configurations include overload limiter, travel limit switches, phase‑failure protection, emergency stop and buffer devices. Optional accessories cover wireless remote control, cabin operation and variable‑frequency speed regulation to fully ensure operational safety.
Application Scenarios: Medium‑to‑Heavy‑Duty Material Handling across Multiple Industries
Machinery manufacturing workshops: Lifting and transfer of heavy components and complete equipment
Steel & profile processing: Loading and unloading of long materials such as steel plates, steel pipes and section steel
Logistics warehousing & yards: Bulk cargo handling and stacking operations
Ports and railway lines: Auxiliary loading and unloading of outdoor bulk goods and containers
Bridge & infrastructure construction sites: Lifting of prefabricated components and construction machinery
Customized Services: Tailored for Specific Working Conditions
Based on customers’ actual working conditions, we provide full‑range customization for lifting capacity, span, lifting height, travelling speed and control modes. Upgraded options include European‑style hoists, variable‑frequency drives and intelligent monitoring systems. We deliver one‑stop lifting solutions covering scheme design, manufacturing, installation & commissioning and after‑sales maintenance, helping enterprises reduce costs and improve efficiency.
Boasting core competitiveness of lightweight structure, flexible semi‑gantry layout and stable double‑girder heavy‑duty performance, the double girder truss‑type semi‑gantry crane delivers reliable performance whether for efficient in‑workshop transfer or outdoor heavy‑duty operations, and provides solid continuous support for enterprises’ production and logistics.
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