Double Girder Truss Gantry Crane
Henan Mine Crane Manufacturing Double Girder Truss Gantry Crane
| Parameter | Specification | Unit | Remarks |
| Model | MEH | – | Type Test Code |
| Crane Type | Truss Double Girder Gantry Crane | – | Double Trolley, Outdoor Modular |
| Rated Lifting Capacity | 5-50 | t | Customizable |
| Span | 12 – 30 | m | Customizable for wide yards |
| Lifting Height | 6 – 18 | m | Adjustable for different needs |
| Working Duty | A3-A5 | – | Medium duty for continuous outdoor operation |
| Trolley Quantity | 2 | – | Synchronous / Independent operation |
| Drive System | VFD Frequency Conversion | – | Smooth running, precise positioning |
| Assembly Type | Sectional Bolted Assembly | – | Easy transport & on-site installation |
| Hoisting Speed | 3 – 10 | m/min | VFD adjustable |
| Travel Speed | 15-40 | m/min | Stable & efficient |
| Protection Level | IP54 | – | Dustproof & rainproof for outdoor |
| Power Supply | 220-690V, 50/60Hz | V | Global customizable |
| Material | High-Strength Q355B Steel | – | Truss structure, light & strong |
| Certification | ISO, CE, FEM | – | Direct global export |
| Application | Construction Site, Precast Yard, Cargo Yard, Logistics Park | – | Outdoor heavy material handling |
Henan Mine Crane Double Girder Truss Gantry Crane Product Introduction
Henan Mine Crane MEH Double Trolley Truss Gantry Crane is a lightweight + modular + double trolley high-efficiency coordinated heavy-duty lifting equipment specially designed for open-air construction sites, prefabricated component yards, large yards, warehousing and logistics parks, with the core of large-span coverage, long component lifting and high-frequency material transfer, and it is the preferred intelligent lifting equipment for the large-span open-air operation scenarios.
Double Trolley Truss Gantry Crane perfectly solves the core pain points of global engineering customers, such as difficult transportation of large-span equipment, long installation period, high cost of overweight, poor wind resistance in the open air, and inaccurate positioning, and the equipment has passed ISO, CE, and FEM international certifications.

1. Product core positioning and design standards
Henan Mine Crane MEH double trolley lattice gantry crane is positioned as a lightweight and efficient gantry crane for global open-span projects / yards, and is suitable for all kinds of construction sites, prefabrication yards and open-air yards around the world.
2. Core Structure and Function Design
- Truss-type double main beam lightweight structure: adopting truss-type double main beam design, compared with the traditional box-type beam self-weight reduction of 30% +, high strength and deformation resistance, wind resistance, suitable for large-span (12-30m) operation, stable operation in open windy conditions.
- Double trolley cooperative operation system: equipped with two independent lifting trolleys, supporting synchronous linkage / independent operation, synchronized with the smooth lifting of long prefabricated components, steel structure, independent of the division of labor lifting different materials, one machine multi-purpose, operational efficiency increased by 50% +.
- Frequency conversion speed control system: the lifting and running mechanism adopts frequency conversion speed control, with wide speed range, smooth starting and braking, no impact and shaking, accurate positioning of lifted materials, and suitable for precision prefabricated components lifting.
- Segmented modular quick assembly: the main girder and end girder adopt segmented structure, which can be disassembled and adapted to the transportation in narrow space, and can be quickly assembled on site by high-strength bolts, which can shorten the installation cycle by 60%+, and does not require large-scale lifting equipments.
- Large-span flexible customized design: the span of the main girder can be customized according to the needs (12-30m), covering a wide working area; the lifting height can be flexibly adjusted (6-18m), taking into account the lifting of goods on the ground as well as the stacking and installation of equipments in the high altitude.
- Open-air environment and safety protection: the whole machine is anticorrosive coated, windproof, rainproof and rustproof, suitable for -25℃~+60℃ open-air environment; overload, limit, emergency stop and windproof anchoring device are equipped as standard to ensure the safety of open-air operation.
3. Core product advantages
- Light weight, cost reduction and efficiency: light weight of truss structure reduces the cost of plant/railway infrastructure by 25%+, and the transportation is more convenient without the need of heavy transportation vehicles.
- Double trolleys for efficient cooperation: synchronized lifting of long parts and independent division of work, covering the needs of multiple scenarios and doubling the turnover efficiency of the yard.
- Modularized easy to install and transport: Segmented and split for transportation, even in narrow places; bolt splicing without welding, installation can be completed in 2-3 days on site, significantly shortening the construction period.
- Frequency conversion and smooth positioning: Frequency conversion and speed control without impact, no shaking of lifting materials, accurate positioning, and protection of prefabricated components and steel structure without bumping.
- Wide span coverage: 12-30m large span customization, covering a wide working area at a time, without the need for multiple equipment splicing, saving equipment investment.
- Easy to export with global compliance: ISO/CE/FEM certification, global voltage/frequency customization, worry-free customs clearance and direct landing.
- Advantage against imported brands: under the same span and performance, the procurement cost is 30%-40% lower, and the installation cycle is shortened by half; the truss structure is more suitable for open-air and windy working conditions, and 30 spare parts warehouses around the world with 8-hour quick response, leading in after-sales efficiency.

4. Global Adaptation Application Scenarios
- Core scenarios: lifting prefabricated components at open-air construction sites, transferring at outdoor yards of steel structure factories, stacking materials at large cargo yards, and loading and unloading heavy goods at warehousing and logistics parks.
- Extended Scenarios: Lifting of extra-long steel materials in railroad yards, lifting of components in wind power equipment assembly yards, prefabricated panel yards for assembled buildings, and transfer of light materials in rear yards of ports.
- Environment: -25℃~+60℃ stable operation, IP54 dustproof and rainproof, suitable for the harsh working conditions of high wind, high dust and humidity in the open air.
5. Global exclusive service
- Provide a full set of technical drawings, operation manuals, certification documents in English, support global customs clearance and local acceptance.
- 7×24 hours multi-language remote technical support, overseas engineers’ door-to-door installation and commissioning and operation training.
- 30 global spare parts warehouses, 72 hours direct delivery of core components, to ensure that the equipment does not stop.
What Can the MGH Gantry Crane from Henan Mine Crane Manufacturing Offer You?
| Value Category | Specific Benefits | Description |
| Lightweight Design | Truss Double Girder, 30% Lighter | Reduces foundation cost, easy transportation, strong wind resistance |
| Dual Trolley | Synchronous / Independent Operation | Lifting long components or divided tasks, 50% higher efficiency |
| VFD Control | Smooth Start & Stop, High Precision | No shaking, accurate positioning, protects prefabricated components |
| Modular Assembly | Sectional Bolted Structure | Easy transport in narrow spaces, 60% shorter installation time |
| Customization | Custom Span & Lifting Height | 12-30m span, 6-18m height, covers wide working areas |
| Outdoor Adaptability | Windproof, Rainproof, Rustproof | Suitable for -25℃~+60℃ open-air harsh conditions |
| Safety Performance | Comprehensive Safety Protection | Overload, limit, emergency stop, wind anchoring for safe operation |
| Global Compliance | International Certifications | ISO/CE/FEM certified, global voltage customizable, direct export |
| Cost Saving | Low Investment & Maintenance | Lower foundation and transportation cost, high cost performance |
| Application Flexibility | Wide Outdoor Scenarios | Ideal for construction site, precast yard, cargo yard, logistics park |
| After-Sales | Global Rapid Support | 30 overseas warehouses, 8h global response, 72h spare parts delivery |
Parameters of Double Girder Truss Gantry Crane

Product Advantages Overview
Henan Mine Manufacturing's MGH Trigger Gantry Crane Detail Display
Application Scenarios for Henan Mine Crane Double Girder Truss Gantry Crane
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Highway precast girder yardTruss gantry cranes are specially used for demoulding, shifting, stacking and loading of highway box girders and T girders, with balanced load capacity of double trolley synchronized lifting, and the wind-resistant design of trusses is suitable for the construction of large-area prefabrication sites in the open air.
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Railway infrastructure project siteTruss gantry cranes serve the prefabrication of railroad bridges, lifting and loading of rail rows, and transfer of large infrastructure components, and can complete the smooth alignment of heavy girders, which is suitable for the variable construction environment in the open field
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Water resources and hydropower projectsTruss gantry cranes are used for sluice gate components, dam templates, water conservancy heavy embedded components lifting and transferring, the truss structure is wind and earthquake resistant, suitable for rivers, reservoirs and other open outdoor operating scenes.
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Wind power foundation components yardTruss gantry crane lifting wind power tower accessories, foundation pre-buried parts, large precast concrete blocks, double trolley cooperative operation, to solve the problem of ultra-long, ultra-wide heavy components lifting
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Assembly building prefabrication plantTruss gantry cranes are responsible for the shifting and yarding of prefabricated wall panels, prefabricated stacked beams, and large assembled components, with a large span covering the entire prefabricated yard, to enhance the efficiency of assembled construction
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Tunnel construction material siteThe lattice gantry crane lifts tunnel arches, pipe sheets and heavy construction equipment. The equipment runs stably and is suitable for high-frequency and high-intensity field construction work at construction sites
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large road and bridge construction sitesTruss gantry cranes are designed for municipal bridge and elevated bridge construction, completing the accurate lifting and splicing of bridge bearings and box girder components, with high precision of double trolley alignment and strong construction safety
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Temporary yard for infrastructure projectsTruss gantry cranes centralize the transfer of engineering templates, steel frame pipes, and heavy construction consumables. The lightweight design of the truss consumes less energy and is suitable for long-term outdoor infrastructure turnover operations
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Port infrastructure construction sitesTruss gantry cranes are suitable for windy conditions at the seaside. With excellent wind-resistant performance, they can complete the lifting and stacking of quay infrastructure components and protective components, and are suitable for the complex coastal climate.
Crane Operation Demonstration
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1Clarify Your Crane NeedsThoroughly understand your lifting requirements (load details, frequency, and workspace environment) before approaching crane manufacturers.
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2Determine Crane Service ClassCalculate the required crane service class based on your operational intensity to ensure optimal performance and longevity.
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3Explore Crane Supplier Custom Features:Investigate available customization options and special features to enhance safety, efficiency, and precision for your specific application.
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4Assess Crane Factory Engineering CapabilityEvaluate the manufacturer's engineering strength to ensure they can design a suitable solution tailored to your needs.
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5Verify Quality & Compliance of Crane CompanyCheck the crane manufacturer's manufacturing quality, certifications, and compliance with international standards and your local safety regulations.
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6Ensure Support & ReferencesConfirm the manufacturer provides reliable after-sales support and has a proven track record with positive references in your industry or region.
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Your Top Questions and Answers Regarding Henan Mine Manufacturing Double Girder Truss Gantry Crane
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What are the advantages of truss structure compared with traditional truss Crane?A: The joist structure is 30%+ lighter in weight, stronger in wind resistance and lower in cost. It is welded with high-strength Q355B steel and optimized by finite element analysis, so the strength is the same as that of box girder, and it does not deform or shake in open windy working condition, so it is strong and durable.
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Can double trolleys be synchronized to lift long goods?A: It supports synchronous linkage of two trolleys, and can smoothly lift long prefabricated components and steel structures over 12m, with no impact of frequency conversion control, accurate positioning, no shaking of lifting, and avoiding knocking of goods.
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Is it convenient to transport the segmented structure?A: The main girder and end girder can be split into segmented modules, which is suitable for narrow space transportation by trucks, and can pass on small country roads and narrow passages at construction sites without heavy overloaded transportation vehicles.
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Do I need to weld for on-site installation?A: The whole process of high-strength bolt splicing, no welding, 2-3 workers with ordinary tools, 2-3 days to complete the installation, without large-scale lifting equipment, significantly shorten the construction period.
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Can it be accurately positioned?A: The lifting and running are controlled by full frequency conversion, the starting and braking are smooth and without impact, the positioning accuracy is high, it is suitable for precision prefabricated components and steel structure lifting to avoid shaking and deviation.
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Can it be customized?A: The standard span is 12-30m, and the larger span can be customized as required; the lifting height of 6-18m can be flexibly adjusted to fully match the space requirements of different construction sites and cargo yards.
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Is it rust-proof in the open air?A: The whole machine is heavily anticorrosive coated + galvanized protection, windproof, rainproof, rustproof, IP54 dustproof and rainproof, suitable for - 25 ℃ ~ +60 ℃, high wind and high dust and other open-air harsh working conditions.
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Can it meet the daily continuous operation of construction sites?A: A3-A5 is the intermediate continuous operation level, suitable for daily high-frequency material transfer at construction sites and freight yards, with stable continuous operation and low failure rate to meet the needs of regular engineering operations.
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What safety protection does the equipment have?A: The equipment is equipped with multiple safety protection of overload, limit, emergency stop, windproof anchoring and anti-detachment, and has passed ISO/CE/FEM international certification, which is in line with the global open lifting safety standards.
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What are your advantages compared with similar truss gantry?A: The procurement cost is 30%-40% lower under the same span and performance, and the installation cycle is shortened by half; the truss structure is more suitable for open-air windy working conditions, the double trolley is more efficient, and the global after-sales response is faster.
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How to guarantee the overseas after-sales service?A: 30 spare parts warehouses around the world, 8-hour multi-language quick response, 72-hour direct delivery of core components; 2-year warranty for the whole machine, 3-year warranty for core electrical components, and lifelong remote technical support and door-to-door maintenance services.
Operating Manual for Double Girder Truss Gantry Crane Manufactured by Henan Mine
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Each crane must display a rated load capacity plate in a conspicuous location.
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No personnel are permitted on the girder during operation, nor may the hook be used to transport persons
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Operation is prohibited without a valid operator's license or under the influence of alcohol.
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Operators must maintain full concentration during operation; talking, smoking, or engaging in unrelated activities is strictly forbidden.
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Keep the crane clean and tidy; do not store equipment, tools, flammable materials, explosives, or hazardous substances haphazardly.
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Do not overload the crane.
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When operating along obstacle-free paths, the hook, lifting device, or bottom surface of the load must remain at least 2 meters above ground level. When crossing obstacles, the load must clear the obstacle by at least 0.5 meters
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For loads under 50% of rated capacity, both lifting mechanisms may operate simultaneously. For loads exceeding 50% of rated capacity, only one mechanism may operate.
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.For bridge cranes equipped with main and auxiliary hooks, do not simultaneously raise or lower both hooks (except under special circumstances).
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Welding or hammering on suspended loads, or working beneath suspended loads, is prohibited (except when properly supported).
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Inspection or maintenance work may only be performed after power has been disconnected and a “Do Not Operate” sign is displayed on the power switch. If live work is unavoidable, implement safety measures and assign dedicated supervision.
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Do not throw objects from the vehicle indiscriminately.
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Regularly inspect limit switches and interlock protection devices.
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Do not use limit switch impact as a stopping method.
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Do not lift or lower loads when hoist brakes malfunction.
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Do not operate the hoist above personnel or equipment.
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When welding any part of the crane, use a dedicated ground wire; do not use the crane body as a ground.
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When the hook is at its lowest position, ensure at least two full turns of safety rope remain on the drum.
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Cranes must not collide with each other; using one crane to push another into operation is strictly prohibited.
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When lifting heavy objects, molten metal, explosives, or hazardous materials, first slowly raise the load 100–200 mm off the ground to test brake reliability.
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Maintenance and inspection lighting must operate at voltages below 36V.
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All electrical equipment enclosures on bridge cranes must be grounded. If trolley rails are not welded to the main girder, grounding measures must be implemented. Grounding conductors may use galvanized flat iron with a cross-sectional area exceeding 75mm², bare copper wire of 10mm², or galvanized round steel exceeding 30mm². The operator's cab or crane body shall have more than two grounding points. The grounding resistance from any point on the crane to the power supply neutral point shall be less than 4Ω.
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