- Jul 22, 2025
- Case Studies
10T MGO Double Girder Gantry Crane to Thailand Power Station
Check out the 10T MGO Double Girder Gantry Crane making its way to a power station in Thailand! Discover how this heavy-duty crane will boost efficiency and safety on site.
Reliable heavy-lift equipment in power generation plants is crucial for efficient maintenance, component replacement, and material handling. Yuantai provided a 10-ton MGO double girder gantry crane for a power station in Eastern Thailand.
Power Station Maintenance and Gantry Crane Usage
Thailand's electricity sector relies on several energy sources, including gas, coal, hydropower, and renewables. Gantry cranes are commonly used in power plants to install, check, and replace heavy equipment such as turbines, generators, and heat exchangers. These machines improve maintenance portfolios by safely lifting loads from 1 to 100 tons, minimizing downtime and extending the service life of important components. Modern power plants frequently demand cranes with precise positioning, long duty cycles, and compatibility with specialist lifting attachments for handling irregular or sensitive parts.
Customer's Crane Need in Power Station Operations
Power station operations require precise, dependable, and safe material handling solutions, particularly during crucial maintenance and overhaul cycles. Our customer in Eastern Thailand requested a strong crane system designed specifically for high-frequency lifting requirements.
1. Regular Overhaul of Turbines and Generators
During scheduled maintenance windows, the plant must disassemble and rebuild turbine-generator sets, which requires lifting rotor shafts weighing up to 9 tons and stator coils weighing 8 to 10 tons. These jobs necessitate accurate vertical movement and coordinated hoisting, as even tiny misalignments might harm critical insulation or winding structures. The crane must thus provide stable hoisting with dual-speed or variable-frequency control to reduce sway and ensure pinpoint accuracy during extraction and reinstallation.
2. Heavy Component Handling
Aside from turbine equipment, the crane is employed for general plant maintenance. This includes lifting and replacing heat exchangers, pressure vessel internals, massive control valve assemblies, and transformer cores, which can weigh between 3 and 10 tons. Because many of these components are located in tight spaces, the crane must provide tight clearances, adjustable lifting heights, and precision trolley motion in order to transport heavy loads without damaging other equipment. Robust anti-sway controls and automated slow-down zones near designated drop-off locations increase safety and lower the danger of a collision.
3. Custom Lifting Attachments
Standard crane hooks are insufficient for various plant objects due to their different forms and fragility. Turbine blades, for example, are bent and need to be lifted in precise orientations to avoid tension or warping. Electrical control panels and rigid printed circuit board (PCB) racks necessitate broad, evenly distributed lifting points to avoid structural damage. To meet these requirements, the crane system is equipped with interchangeable lifting tools such as spreader beams, adjustable clamps, vacuum lifters for flat surfaces, and electromagnetic lifters for metallic components. Quick-change hook adapters and integrated power connections for lifting attachments allow for quick and safe tool changes.
10T MGO Gantry Crane We Provided
The MGO series double girder gantry crane is an advanced lifting system designed to suit the operational requirements of heavy-duty industrial applications. This crane was designed to meet European FEM requirements, with a focus on structural integrity, operational precision, and user-friendly control. With a rated capacity of 10 tons, it is ideal for handling high-value or fragile components in industries including power generating, transformer assembly, and machinery manufacture. The MGO crane incorporates current electrical systems, solid mechanical drives, and configurable lifting attachments, making it an adaptable and dependable alternative for demanding lifting jobs.
MGO Design Features and Components
The MGO gantry crane is built on a strong double girder box structure. The girders are made of S355J2+N structural steel plates, and they are pointed out for their high tensile strength and weldability. To ensure uniform load-bearing capacity, each girder is fully penetrated welded and tested using ultrasonic technology. This box-type design reduces deflection and vibration, even when handling full-load lifts over long distances, making it ideal for operations requiring precise positioning.
1. European‑Style Box Girders
The girder system's closed, box-section form offers higher moment of inertia than typical I-beam or truss designs. This rigidity enables the crane to retain continuous alignment and stability under dynamic lifting loads. These girders are additionally internally strengthened and sandblasted before painting to increase corrosion resistance and service life, especially in semi-outdoor or dusty settings.
2. Imported Gearboxes and Motors
To provide consistent drive performance and minimize downtime, the MGO crane incorporates internationally known components. Hoisting and travel gearboxes are supplied by reputable manufacturers such as Siemens and Schneider, and motors are typically ABB or SEW units with insulation Class F and thermal protection. These motors are combined with helical gear reducers to maximize torque output and energy economy. Lubrication systems are either sealed for life or provided with oil bath arrangements, depending on the application, to reduce maintenance requirements.
3. Integrated PLC Control
The crane's control system runs on a Siemens S7-1200 PLC. This programmable logic controller (PLC) is contained in a dust and moisture-resistant electrical cabinet. Operators can see real-time crane data such load weight, trolley position, hook height, fault codes, and maintenance intervals on the screen. The PLC enables smart diagnostics, motion interlocks, and automated safety checks prior to lift initiation, thereby increasing system reliability and safety.
4. Crane Spreader Compatibility
In order to adapt to the diverse lifting needs of this customer, we designed a flexible end-effector integration solution for this MGO gantry crane. This allows the operator to switch between spreaders. These parts ah can safely lift a variety of attachments. Optional sensors integrated into the attachments monitor load balance and gripping force, ensuring optimal safety during critical lifts.
The 10T MGO double girder gantry crane we provided is a high-performance, customizable lifting solution that meets modern industrial facility operational, safety, and reliability requirements.
Rail‑Based Operation and Support Structure
The crane relies on a rail-based system supported by reinforced concrete beams. The rails are UIC54 profile, composed of grade R260 steel, with a hardened running surface to withstand wear from numerous 10-ton load cycles. Rails must be installed with a ±2 mm tolerance over 10-meter sections and verified with high-accuracy laser trackers for smooth, vibration-free crane movement. Hydraulic buffers are built at the travel limits to absorb kinetic energy and protect the crane and other structures from damage. This rail-guided system offers excellent positioning precision and little rolling resistance.
MGO Gantry in Yuantai
Other Application of MGO Double Girder Gantry Crane
The MGO double girder gantry crane is intended for heavy-duty material handling tasks in areas where overhead cranes are impractical or large, open spaces are required. Its structure, which consists of two strong girders supported by rigid legs that run on ground rails, provides a high load capacity and consistent lifting performance. The MGO double girder gantry crane is widely used for the following applications:
1. Outdoor Material Yards
MGO gantry cranes are ideal for use in open storage yards where lifting and moving heavy materials like steel beams, concrete components, and precast segments are frequent. With no need for building columns or a roof structure, the crane spans a wide area and travels on rails installed directly on the ground, making it suitable for loading, stacking, and organizing bulky items efficiently.
2. Prefabrication Plants and Concrete Industry
In facilities that produce large prefabricated building components, the MGO gantry crane is used to lift and transfer items such as wall panels, columns, and beams from production lines to curing zones or storage. The crane's stable dual-girder configuration ensures safe movement of wide and uneven loads across open yards.
3. Steel Fabrication and Heavy Machinery Workshops
MGO cranes are employed indoors or in semi-open workshops for lifting fabricated metal structures, machine frames, or industrial equipment. They provide high hook travel and span widths to accommodate large components during assembly or repair, ensuring workflow continuity without requiring additional lifting systems.
4. Heavy Manufacturing & Industrial Assembly
In heavy industries such as metallurgy, mechanical equipment assembly, and ship component production, the double girder gantry crane provides a practical lifting solution for large-scale, high-weight components. Its dual-girder configuration supports higher capacities and longer spans, which are essential when lifting oversized objects like large shafts, gearboxes, furnace bodies, and rolled steel products. The robust structure allows precise handling, even for uneven or asymmetric loads. It is often integrated with two-hook trolleys or auxiliary hoists for complex lifting requirements involving load rotation, alignment, or split lifting.
5. Mining & Construction Equipment Fabrication
For companies involved in the production or maintenance of mining equipment (such as dump truck frames, excavator booms, or crusher housings), the MGO double girder gantry crane provides reliable vertical and horizontal movement. The crane often operates in open assembly yards or fabrication shops where overhead installations are not possible. Its ability to support custom hoist configurations, including dual trolleys, is important when handling components that require balanced or synchronized lifts.
6. Advantages in Harsh Environments
The MGO gantry crane is especially well-suited for outdoor locations where dust, temperature fluctuations, or exposure to rain or snow would hinder the usage of other crane types. To improve corrosion resistance, the crane structure can be hot-dip galvanized or painted with heavy-duty coatings. Electrical components can be sealed to IP55 or higher for dust and water resistance, making the MGO an ideal solution for construction, mining, and heavy fabrication sites.
Customization Options for Applications
The MGO gantry crane is intended to be a versatile lifting solution that can meet the wide range of industrial, logistical, and outdoor application requirements. Yuantai provides a number of bespoke engineering choices to assure peak performance in a variety of working settings. These improvements not only broaden the crane's functionality, but also improve its safety, dependability, and efficiency in specific applications. Whether the crane is operating in a controlled interior setting or an exposed outside yard, the following customizable elements allow to align its performance with operational objectives.
1. Cantilever Arms for Extended Reach
Cantilever arms can be placed on one or both ends of the crane in facilities where lifting activities must extend beyond the standard span of the gantry rails, such as when loading trucks or accessing storage zones near to the runway. These arms allow the trolley and hoist to work beyond the runway track, creating an overhang region where items can be retrieved or placed without repositioning the crane.
2. Outdoor Safety Features
The MGO Double Girder Gantry Crane is specifically built for outside yard operations and comes with a comprehensive set of safety features to deal with environmental and operational hazards. Windproof rail clamps and anchor mechanisms keep the crane safe during downtime or storms, while sealed coverings shield the trolley and electrical systems from rain and dust. The control system consists of lift and travel limit switches, overload detection, and electrical safeguards such as phase-loss and overcurrent protection. Optional safety features include sound and light alerts, anti-collision systems, and aviation lights for tall installations. The crane's maintenance access includes non-slip platforms, ladders, and safety railings that meet clearance and safety criteria. Overall, these components assure dependable performance and operator safety in harsh outdoor environments.
3. Flexible Control Options
The MGO gantry crane allows for a variety of control configurations based on the user's operational style and complexity. Standard cabin controls provide a full view of the work area and are ergonomically designed for long shifts. Remote radio controls give complete command of crane movements from a safe distance, making them ideal for operations that require mobility and flexibility. Fully automated PLC-based control systems can be used in high-volume or precision-driven situations to execute preprogrammed operations, minimize human workload, and improve repeatability. These systems can be linked with production or logistics software to enable real-time coordination.
4. VFDs for Smooth Motion and Positioning Accuracy
To ensure precise and responsive crane movement, variable frequency drives (VFDs) are installed on the trolley and bridge travel motors. VFDs regulate acceleration and deceleration curves, reducing mechanical shock to the structure and minimizing load sway during starts and stops. This feature is especially beneficial in handling delicate or high-value loads where smooth, controlled motion is crucial. Additionally, the VFD system supports energy-efficient operation by adjusting motor power based on load demand and travel distance, contributing to lower operating costs and reduced mechanical wear.
