Goliath Gantry Crane

1)The Goliath gantry crane is a powerful, versatile lifting system designed to handle large and heavy loads in demanding industrial environments. Engineered for maximum strength and stability, it is ideal for applications such as shipyards, construction sites, steel plants, and large warehouses.

The Goliath gantry crane Product Features:High Load Capacity: Capable of lifting loads ranging from 5 tons up to 500 tons or more.Customizable Design: Available in single or double girder configurations to suit your specific needs.Durable Construction: Built with high-quality steel, offering exceptional durability and resilience.Advanced Control Systems: Includes options for manual or remote operation, ensuring precise control during lifting.Safety Mechanisms: Equipped with overload protection, limit switches, and emergency stop functions for safe operation.

The Goliath gantry crane Applications:Shipbuilding: Ideal for moving heavy ship components and materials in marine environments.Construction: Efficiently handles prefabricated structures, heavy construction materials, and machinery.Steel Manufacturing: Perfect for lifting steel coils, plates, and other heavy materials in production facilities.Logistics & Warehousing: Useful for moving large items in outdoor storage yards and industrial facilities.

4)Why Choose a Goliath gantry crane?Flexibility: Offers mobility, eliminating the need for permanent lifting structures.Cost-Effective: A practical and affordable alternative to overhead cranes or other fixed lifting equipment.Reliable Performance: Engineered for continuous operation in tough, outdoor conditions.Compliant with International Standards: Adheres to global safety and quality standards for cranes.

Core Components PLC, Engine, Bearing, Gearbox, Motor, Pressure vessel, Gear, Pump

Place of Origin Henan, China

Weight (KG) 9000 kg

Video outgoing-inspection Provided

Machinery Test Report Provided

Product name MG model double girder gantry crane

Crane type Double girder gantry crane

Work Duty A3 ~ A7

Control mode Pendent Line, Remote Control, Cabin Control

Traveling Speed 50 m/min

Voltage 3P 380V 50/60HZ or customized

Main electrical parts Schneider/ABB/Siemens

Color Yellow,Red or Customzied

Working temperature -20 ~ 40 ℃

Control voltage DC-24 / 36V

Main beam

The Goliath gantry crane High-Strength Steel Construction :The main beam is typically constructed from high-quality, reinforced steel, ensuring maximum strength and durability. It is designed to withstand the heavy loads and stresses associated with lifting large and cumbersome materials. Advanced welding techniques and quality control processes ensure the beam maintains structural integrity even under extreme conditions.

The Goliath gantry crane Beam Configuration :The main beam can be configured in different ways depending on the crane's design (single girder or double girder). The single girder design has a single horizontal beam, while the double girder design incorporates two parallel beams for added stability and lifting capacity. The configuration choice depends on the weight and type of materials being lifted and the required lifting height.

The Goliath gantry crane Length and Span:The length of the main beam determines the span or width of the crane, which affects how far the crane can reach over the workspace. Goliath gantry cranes are often designed for large outdoor areas, which requires beams with long spans to accommodate wide working zones, such as shipyards or large construction sites.

The Goliath gantry crane Corrosion Resistance;Since Goliath gantry cranes are frequently used outdoors, the main beam is designed with corrosion resistance in mind. This can be achieved through galvanization, special coatings, or using stainless steel in certain environments. These measures ensure the beam maintains its integrity and strength, even in harsh weather or maritime environments.

The Goliath gantry crane Precision Engineering;The main beam is meticulously designed and engineered for high precision. The fabrication process ensures that the beam is perfectly aligned, enabling the crane to operate with minimal vibrations or deviations, which is critical for accurate lifting and positioning of heavy loads.

The Goliath gantry crane Integration with Hoisting System;The main beam serves as the mounting platform for the hoisting system, including the trolley, hoist, and lifting mechanism. The crane's main beam needs to be precisely engineered to support the hoist's travel and ensure smooth operation of the lifting gear.

Lifting System

Motorized Drive: The hoist is powered by electric motors that provide the lifting force needed to move the load. These motors are designed for high performance, offering smooth, reliable operation even under heavy loads.Drum or Winch: The hoist drum or winch houses the rope or cable that is used to lift the load. It winds and unwinds the rope to change the height of the load.Load Block: This is the part of the hoist that is connected to the load. It contains pulleys or sheaves that guide the lifting rope to minimize wear and ensure smooth lifting and lowering.

Wire Rope or Chain; The lifting mechanism uses either wire ropes or chains depending on the specific design and lifting requirements. Wire ropes are often used for high-capacity lifts, while chains are typically employed for lower-capacity cranes.Wire Rope: Provides greater flexibility and strength for high loads and longer lifting heights. It is reinforced with steel wires to prevent stretching and ensure durability.Chain: Typically used in cranes with smaller lifting capacities. Chains are more robust and less prone to wear when lifting heavy loads over shorter distances

Motorized Drive System;The motorized drive system powers both the hoisting mechanism and the trolley. These drive systems are usually equipped with adjustable speed controls, enabling operators to control the speed of lifting, lowering, and horizontal movement with precision. The drive systems are designed for heavy-duty use, ensuring continuous performance even during extended operational periods.

Brakes;Brakes are essential safety components in the lifting system. They are used to control the descent of the load and prevent uncontrolled movement. Typically, mechanical brakes or electromagnetic brakes are installed on both the hoist and trolley to ensure safe, smooth operation. In case of power failure or an emergency, the brakes hold the load in place to prevent accidents.

3.End carriage

1)Structural Support The end carriage provides robust structural support for the crane's main girder (or beams). It houses the wheels, motors, and drive systems that allow the crane to move horizontally across the work area. The end carriage ensures that the crane remains stable during operation, evenly distributing the weight and minimizing any risk of tilting or shifting under load.

2)Track-mounted end carriages: In these designs, the crane moves along a set of rails or tracks that run on the ground. The wheels on the end carriage follow the track, allowing precise movement of the crane along the designated area.

Rubber-tired end carriages: Some Goliath cranes feature end carriages with large rubber tires, providing better maneuverability and the ability to move freely across outdoor surfaces.Drive Mechanism The end carriage is typically powered by electric motors that drive the wheels for horizontal movement. The drive mechanism includes:

3)Motorized Drives: Electric motors are often installed on one or both end carriages to power the movement along the track. These motors can be controlled to adjust the speed of the crane's movement for better control during load handling.Reduction Gearbox: A gearbox is used to reduce the speed of the electric motor and transfer power to the wheels, allowing for smooth movement and precise control over the crane's horizontal travel.Brake System: Brakes are incorporated into the end carriage to stop the crane at the desired position and to ensure the crane remains stationary when not in motion. Typically, the brakes are electromagnetic or mechanical, depending on the crane's design.Load Distribution The end carriage is engineered to distribute the weight of the entire crane and its load evenly across the wheels. This ensures that the crane operates with stability and minimal strain on any one part of the structure. In cases where the crane lifts extremely heavy loads, the end carriage design may be reinforced to handle the additional weight.

4.Crane travelling mechanism

1)The crane's wheels are mounted on the end carriages and are responsible for guiding the crane along the rails (for track-based systems) or directly on the surface (for rubber-tired systems).Rails: For track-based Goliath Gantry Cranes, the rails are fixed on the ground in a straight or curved layout. The wheels of the end carriage follow these rails, allowing the crane to move along a predetermined path. The rails are typically made of heavy-duty steel to handle the weight of the crane and its load.Rubber Tires: In the case of rubber-tired Goliath cranes, the crane moves on large, durable tires, allowing it to move freely across open areas. This system provides greater flexibility and mobility, especially in outdoor environments like shipyards or construction sites.

2)Travel Motors and Drive System;The travel motors are responsible for powering the crane's movement along the rails or surface. These electric motors are typically installed on the end carriages, with a motor on each end carriage for larger cranes or a single motor for smaller models.

Drive Mechanism: The travel motor is connected to a gearbox (often a reduction gearbox) that reduces the motor's speed and transfers the power to the wheels. This setup ensures smooth and controlled movement.

Adjustable Speed Control: The crane traveling mechanism usually allows for adjustable speed control, enabling operators to move the crane slowly or at higher speeds, depending on the operational requirements.

3)Control System for Traveling Mechanism;The crane's control system manages the horizontal movement of the crane, allowing the operator to control the speed, direction, and positioning with ease. This system typically includes:Pendant or Remote Control: Operators can control the crane traveling mechanism using a pendant control or a wireless remote control, which provides flexibility and improved safety by allowing the operator to move away from the crane during operation.

Cabin Control: In larger models, the crane may have a dedicated operator's cabin where the operator controls both the lifting and traveling movements.Variable Frequency Drive (VFD): A VFD can be used to control the speed of the travel motor, ensuring smooth acceleration and deceleration, which is crucial for safe and precise movement, especially when handling heavy or sensitive loads.

5.Trolley travelling mechanism

1)The trolley is a wheeled platform that runs along the crane's main girder, carrying the hoist and the lifting mechanism. It is an essential part of the crane that facilitates the horizontal travel of the load.

The trolley may be a single trolley (in the case of single girder designs) or a double trolley (in the case of double girder designs), depending on the crane configuration and lifting capacity.The trolley can be designed for fixed load carrying capacity or for variable load depending on the design, to accommodate different hoist types and weights.

2)Wheels and Rail System;The trolley wheels are mounted on the rail system (also known as the girder tracks) on the main beam of the crane. These wheels are typically made of steel to withstand the heavy load and provide smooth motion along the girder.

The wheels follow a rail that runs along the entire length of the crane's main girder, allowing the trolley to move horizontally across the span of the crane. In some designs, the wheels are mounted on V-shaped tracks to provide stability and prevent the trolley from derailing.

Wheel Arrangement: Typically, four wheels are used on the trolley (two on each side) to ensure stability and even load distribution. The number and configuration of wheels may vary based on the crane design and load requirements.

Variable Speed Control: The trolley's travel speed can be adjusted using a Variable Frequency Drive (VFD) or other speed control systems. This ensures that the trolley moves at the optimal speed, depending on the load, the type of material being handled, and the specific operational requirements.Manual or Motorized Control: In some systems, manual controls (such as a hand chain or pendant control) can be used for trolley movement. More commonly, the trolley's motion is controlled via an electrical or radio remote control system.

6.Crane wheel

1)Material;Crane wheels are typically made from high-grade, heat-treated steel to ensure durability and strength under heavy loads.The material is often forged steel or cast steel with high tensile strength, offering excellent resistance to wear and deformation.

2)Load Capacity Crane wheels are designed to bear the crane's total weight and the weight of the load being lifted. Their load-bearing capacity depends on the material, size, and design of the wheel.The wheels distribute this weight evenly across the rails or ground surface to ensure stability and prevent damage to the infrastructure.

3)Size and Dimensions The size of the crane wheels (diameter, width, and flange height) is determined based on the crane's capacity, track gauge, and operational environment.Larger wheels are used for higher load capacities, while smaller wheels are suitable for lighter loads or compact cranes.

7.Crane Hook

1)The hook is Material Made of high-strength alloy steel or forged steel to provide superior durability, resistance to wear, and strength under heavy loads.Heat-treated for enhanced toughness and to prevent deformation under extreme stress.

2)The hook is Design;Typically designed with a U-shaped structure for ease of attaching slings, ropes, or chains.Available in various shapes and configurations based on the application:Single Hook: A simple design used for lighter loads or less critical operations.

Double Hook: Designed to evenly distribute heavy loads, reducing stress on the hook.Equipped with a safety latch or spring-loaded locking mechanism to prevent accidental disengagement of the load.

3)Capacity Rated for specific load capacities (e.g., 5 tons, 10 tons, 50 tons, etc.), depending on the crane's lifting requirements.Clearly marked with the safe working load (SWL) or working load limit (WLL) for operational safety.

Rotation Many crane hooks are mounted on a swivel bearing to allow 360-degree rotation, providing flexibility during load handling.This feature reduces stress on the lifting slings or chains and ensures better alignment of the load.

Motor

Hoisting Motor Powers the lifting mechanism, allowing the crane to lift and lower heavy loads.Designed for high torque and controlled speed to handle heavy materials safely and efficiently.Trolley Traveling Motor Drives the horizontal movement of the trolley along the main girder.Offers smooth acceleration and deceleration for precise positioning.

Crane Traveling Motor Powers the movement of the entire gantry crane along its rails.Must provide consistent performance to move the crane and load across long distances.Key Features of Goliath Gantry Crane Motors

Power Rating;power output of the motor depends on the crane's capacity, operational requirements, and duty cycle.Typically ranges from a few kilowatts (kW) to hundreds of kilowatts for heavy-duty cranes.Duty Class Motors are classified based on their duty cycle:S1 (Continuous Duty): For operations with minimal interruptions.S4 (Intermittent Duty with Start-Stop): Suitable for cranes with frequent load lifting and lowering.

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Sound and light alarm system & limit switch

1)Audible Alarm:Emits a loud siren or beeping sound during critical operations such as:Crane movement (traveling along rails).Load lifting or lowering.

Emergency stop activation.Volume levels are typically adjustable to ensure the sound is noticeable in noisy environments, such as shipyards or industrial sites.

Visual Alarm:Includes flashing lights, typically LED, mounted on the crane.Colors are often coded for different warnings (e.g., red for emergencies, yellow for caution).

Automation:The alarm system is integrated with the crane's control panel and activates automatically during specific events, such as:Overload detection.Limit switch activation.Power failure or fault conditions.

4)Durability:Built to withstand harsh environmental conditions, such as dust, moisture, and extreme temperatures, ensuring reliable performance in industrial settings.Benefits of the Alarm System Enhanced Safety: Warns nearby workers of crane operations or hazards, reducing the risk of accidents.Operational Awareness: Keeps operators informed of critical events or system faults in real time.Compliance: Meets industry safety standards and regulations.

10.Safety Devices

1) Purpose: Prevents the crane from lifting loads beyond its rated capacity, reducing the risk of mechanical failure or structural damage.How It Works:Sensors measure the load weight.If the load exceeds the safe working limit (SWL), the system halts lifting operations and triggers an alarm.

2) Features:Displays the current load weight.Can be integrated with digital or analog control systems.Limit Switches Travel Limit Switches:Restrict the horizontal movement of the crane or trolley to prevent collisions or overrun at track ends.Hoist Limit Switches:Stop the hoisting mechanism to prevent over-lifting or over-lowering of the hook block.

3) Emergency Stop System Purpose: Allows operators to stop all crane operations immediately in case of an emergency.How It Works:A large, easily accessible red button is installed on the crane's control panel or remote control.Once pressed, it cuts power to all motors and halts operations instantly.

11.Control Mode

1)Remote Control Overview: Allows operators to control the crane from a distance using a wireless remote control.

Key Features:Radio frequency (RF) or infrared (IR) communication.Compact, ergonomic controllers with buttons, joysticks, or touchscreens.Control range varies depending on the system, typically up to several hundred meters.

2)Cabin Control Overview: The crane is operated from an onboard cabin located on the gantry.Key Features:

Equipped with joysticks, control panels, and monitoring displays for precise operation.Provides the operator with a clear, elevated view of the work area.Climate-controlled cabins for operator comfort.

3) Programmable Logic Controller (PLC) / Automated Control;Overview: The crane is operated automatically or semi-automatically using pre-programmed commands and sensors.Key Features:Integrated PLC systems for automated movements and task execution.

Sensors and encoders ensure precise control and positioning.Customizable programs for repetitive or specialized tasks.

Sketch

Main technical

Goliath gantry cranes, also known as "Goliath cranes" or "port cranes," are large, robust lifting machines typically used in outdoor environments, such as ports, construction sites, and large industrial yards. They have a variety of advantages, including

High Lifting Capacity;Goliath gantry cranes are designed to lift extremely heavy loads, which is especially beneficial for industries that need to move large, bulky materials, such as shipyards, factories, and container terminals.

Cost-Effective;Since these cranes are often used for outdoor applications, they do not require the construction of complex building infrastructure. This can reduce overall costs when compared to fixed overhead cranes or other lifting systems.

Mobility and Flexibility;Goliath gantry cranes are typically mounted on wheels or rails, which gives them the ability to move across large areas. This flexibility allows them to be used in different parts of a yard or facility without needing a separate fixed lifting device.

Versatility;These cranes can handle a wide range of materials, from large shipping containers to heavy industrial machinery, depending on the model and configuration. This makes them adaptable for various industries such as shipping, construction, manufacturing, and logistics.

Heavy-Duty Performance; Goliath gantry cranes are built to handle harsh environments and heavy-duty operations. They are designed for long-lasting performance, offering great stability and durability even under extreme load conditions.

Space Optimization;Since Goliath cranes are typically designed for outdoor use, they can operate in expansive open areas, helping optimize the use of space in busy industrial yards or dockyards.

Increased Efficiency;Goliath gantry cranes can move large loads quickly and efficiently, reducing downtime and increasing the speed at which materials are handled. This can greatly improve productivity and throughput in environments where fast load handling is crucial.

Goliath gantry cranes are used in a variety of industries due to their versatility, mobility, and heavy lifting capacities. Their design makes them suitable for outdoor applications where large and heavy materials need to be handled. Here are some of the main applications of Goliath gantry cranes

Shipbuilding and Shipyards;Application: Goliath gantry cranes are frequently used in shipyards for constructing and assembling ships, as well as for heavy lifting of ship parts and large equipment.Benefits: These cranes can move along the length of the shipyard, making them highly effective for lifting heavy components, such as ship hulls, large equipment, and prefabricated sections.

Port and Container Handling;Application: In port facilities, Goliath gantry cranes are used to handle containers and large cargo. These cranes are essential for loading and unloading containers from ships, moving cargo across dockyards, and stacking containers.

Construction Sites;Application: On large construction sites, particularly in infrastructure projects such as bridges, dams, or high-rise buildings, Goliath gantry cranes are used to lift and move heavy construction materials, such as steel beams, concrete slabs, and precast structures.

Heavy Industry and Manufacturing;Application: In industries like steel, automotive, and aerospace manufacturing, Goliath gantry cranes are used to move heavy machinery, steel coils, and large fabricated parts during production or assembly.

Mining and Quarrying;Application: Goliath gantry cranes can be used in mining and quarrying industries to move large mining equipment, such as crushers, grinders, and conveyor systems, or to lift and transport extracted materials like rocks and ores.

Steel Mills;Application: In steel mills, Goliath gantry cranes are used to handle large steel products, such as rolls, slabs, billets, and coils.Benefits: These cranes help facilitate the handling of heavy, hot, and bulky materials within the steel production process, where precision and strength are critical.

Crane production procedure

1. Design stage: Understand the specific needs of customers, including load-bearing capacity, span, height and use environment. Carry out preliminary design according to the needs and draw scheme drawings, including structural design, power system and control system design. Carry out structural strength, stability and dynamic analysis to ensure that the design meets relevant standards and specifications.

2. Material preparation: Select suitable materials according to design requirements, such as high-strength steel, aluminum alloy, etc., to ensure good mechanical properties and durability. Purchase the required raw materials and components according to the design drawings, including motors, reducers, hooks, control systems, etc.

3. Processing and manufacturing: Cut the steel and process the main beam, end beam and other structural parts according to the design dimensions. Connect the cut parts by welding to form the main structural frame of the crane. Finish the welded components, including drilling, turning and milling, to ensure the matching accuracy of each component.

4. Assembly: Preliminary assembly of the processed components to check the stability and matching of the structure. Install the lifting mechanism, trolley running mechanism and trolley running mechanism to ensure that all moving parts can run smoothly.

5. Electrical system installation: Install motors, inverters, control panels and other electrical components to ensure that the electrical system is connected correctly. Arrange the cable lines reasonably to ensure safety and beauty, and reduce interference and wear.

6. Commissioning and testing: Test the various functions of the crane, including lifting, moving, braking and alarm systems, to ensure that all functions are normal. Carry out safe load tests to ensure that the crane operates stably under maximum load and meets safety standards.

7. Inspection and quality control: Carry out quality inspections on each link of production to ensure that all components meet design and standard requirements. Carry out qualification certification according to relevant regulations to ensure that the equipment meets national and industry standards.

8. Delivery and installation: Transport the manufactured crane to the customer site. Install it at the customer site, including fixing the foundation, commissioning and connecting the power supply. Provide operation training to customers to ensure that they can use the equipment safely and effectively, and officially deliver it for use.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.