Regulated Electrically Operated Double Beam Gantry Crane

Introduction to Regulated Electrically Operated Double Beam Gantry Crane

A Regulated Electrically Operated Double Beam Gantry Crane is a high-performance lifting solution engineered for heavy-duty material handling in industrial environments where precision, efficiency, and regulatory compliance are essential. This type of crane features dual main girders (double beam design) and is fully powered by an electric drive system that enables controlled movement across multiple axes.

These cranes are widely used in steel plants, shipyards, construction sites, container terminals, and manufacturing facilities, where they handle heavy, bulky, or oversized loads with exceptional stability and safety.

Key Features

Double Beam Structure:
Provides high load capacity, superior rigidity, and minimized deflection, allowing the crane to carry heavy loads across wide spans safely.

Fully Electrically Operated:
All movements-lifting, trolley travel, and crane travel-are powered electrically. Advanced motor controls ensure smooth and efficient operation.

Speed Regulation:
Equipped with inverter drives or variable frequency drives (VFDs) for regulated speed control. This allows for smooth acceleration/deceleration and precise load positioning.

Compliance with Safety Standards:
Designed and manufactured in accordance with national and international standards (e.g., IS/ISO, FEM, DIN, OSHA). Includes overload protection, limit switches, emergency stop systems, and more.

Customizable Configuration:
Available with different spans, lifting heights, load capacities (typically 5 to 200+ tons), and options such as remote control, cab operation, and automated systems.

Applications

Steel and metal processing industries

Shipbuilding and marine engineering

Logistics hubs and container terminals

Precast concrete and infrastructure projects

Heavy equipment manufacturing

Advantages

Precise load handling due to regulated electrical control systems

Reduced wear and maintenance through smoother operations

Higher safety through standardized electrical components and control logic

Energy-efficient performance with modern drive technologies

Adaptability for indoor and outdoor environments

A Regulated Electrically Operated Double Beam Gantry Crane combines strength, precision, and control to deliver superior performance in demanding industrial operations. It is the ideal solution for businesses that require efficient, safe, and compliant lifting systems capable of handling heavy materials under controlled conditions.

Core Components：Gearbox, Motor, Gear

Place of Origin：China

Warranty：1 Year

Weight (KG)：10000 kg

Video outgoing-inspection：Provided

Machinery Test Report：Provided

Rated Loading Capacity：50 Ton, 30 Ton, 40 ton, 5 ton, 20 Ton, 10 TON

Max. Lifting Height：30M

1.

Double Main Beams (Bridge Girders)

Function: Carry the hoisting trolley and bear the vertical load.

Features: Fabricated from high-tensile steel; box-type or I-beam construction for enhanced rigidity and reduced deflection.

Advantage: Supports heavy loads and allows long-span operation with minimal vibration.

The main beam is typically made of high-strength steel or sometimes composite materials, depending on the crane's design requirements.The main beam usually includes reinforced sections or box girders to handle the heavy loads and resist bending or twisting under the forces during operation.The beam houses the crane's trolley, which moves along its length to carry the load (often containers or heavy equipment).

Gantry Legs (Supports)

Function: Connect the bridge girders to the ground rail system.

Features: Designed to withstand bending and torsional forces; may include bracing and platforms for maintenance access.

Advantage: Ensures crane stability and safe vertical load transfer to the ground.

Hoisting Trolley with Hoist

Function: Lifts and lowers the load; moves along the main girders.

Components: Electric hoist (usually wire rope type), trolley frame, geared motors, and brake systems.

Advantage: Delivers precise lifting via regulated electric drives (VFD-controlled) for smooth operation and minimal load swing.

3.End carriage

1) The end carriage of the largest gantry cranes, often used in ports or heavy-duty industrial settings, is a critical component that supports the crane's main structure and facilitates its movement along rails. The size and design of the end carriage vary depending on the crane's load capacity, size, and intended application.

2) The design ensures the weight of the crane and its loads are evenly distributed across the rails and foundation.Typically, end carriages are made from high-strength steel, designed to withstand heavy loads and dynamic forces.The end carriages are usually equipped with electric motors, gearboxes, and rail wheel systems to allow smooth and controlled movement along the rails.

3) The end carriages typically support massive weights-some can lift container loads up to 65 tons per movement, and even more with specialized equipment. These end carriages can weigh hundreds of tons themselves, depending on the overall crane size and lifting capacity.

4.Crane Travel Mechanism

Function: Moves the entire gantry crane structure along ground rails.

Components: Electric motors, geared wheel assemblies, drive shafts, and braking units.

Advantage: Regulated electric drives ensure soft starts/stops, reducing stress on structural components and improving operator control.

5.Trolley travelling mechanism

1) Structural composition

The trolley travelling mechanism in the biggest gantry cranes combines a series of high-strength steel components for structural integrity, advanced motor and gearbox systems for movement, and intricate safety systems to ensure precise and safe operation.

2) Function of the trolley operating mechanism

Horizontal Movement of the Trolley:The trolley moves back and forth along the length of the crane bridge. This allows the load to be positioned over various parts of the work area.It ensures that the crane can cover a wide span, enabling the lifting and transportation of materials across the designated work area.

Load Transport:The trolley is equipped with a hoisting mechanism (hook, clamp, or other lifting devices), which can pick up, move, and release loads. The traveling function enables the crane operator to precisely move loads over a specified path.

Load Transport:The trolley is equipped with a hoisting mechanism (hook, clamp, or other lifting devices), which can pick up, move, and release loads. The traveling function enables the crane operator to precisely move loads over a specified path.

6.Crane wheel

1) Function of wheels

Mobile support: The main function of the wheels is to support the movement of the crane on the track and ensure the smooth operation of the crane.

Load distribution: The wheels help to evenly distribute the load of the crane, reduce the pressure on the track, and increase the service life of the equipment.

2) Design requirements

Strength and rigidity: The wheels must have sufficient strength and rigidity to withstand the dead weight of the crane and various dynamic loads.

Wear resistance: Due to the continuous friction between the wheels and the track, the wheel material must have good wear resistance to extend the service life.

Anti-skid design: The wheel surface should be designed to be anti-skid to avoid sliding or slipping under heavy load.

7.Crane Hook

The crane hook of the largest gantry cranes is typically a heavy-duty, robust piece of equipment designed to handle extremely high lifting capacities. These cranes, used in large-scale industrial applications such as shipyards, ports, and construction sites, have hooks that can handle loads often exceeding several hundred tons.

Crane hooks are usually made from high-strength alloy steel to withstand the immense stresses from heavy loads. The hook may be forged to ensure toughness and reliability.The hook on a giant gantry crane can be very large, often weighing several tons itself, depending on the lifting capacity of the crane. For instance, cranes with lifting capacities in the range of 1,000 tons or more might have hooks that weigh several tons as well.The design may vary, but common types include single, double, or triple hook configurations, especially for larger cranes. Double or triple hooks can help distribute the load more evenly, which is particularly important when lifting very large or awkwardly shaped items.

Large gantry cranes are equipped with safety mechanisms to prevent hook damage and accidents. This includes features like automatic overload protection, anti-sway systems, and emergency brakes.On larger cranes, hooks often come with different types of rigging attachments (e.g., lifting slings, spreader bars) to facilitate safe and efficient load handling.

Motor

1) The motor system of such a massive crane would involve highly specialized motors capable of handling immense loads with precision. The crane's hoisting system would likely use several DC motors or AC motors with variable frequency drives (VFDs) for smooth and efficient control. The motors would be linked to a complex system of winches, pulleys, and lifting mechanisms to lift and move extremely heavy loads.

2) The crane is powered by a combination of electric motors for the lifting mechanism and hydraulic motors for certain parts of the crane, such as the trolley or the slewing mechanism. Specific details on the exact type and power of the motors aren't usually publicly available, but such a crane would require motors with several megawatts of power to perform its heavy-duty tasks effectively.

3) The crane is also equipped with sophisticated safety features and control systems to ensure stability and prevent overloads during operation.

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Sound and light alarm system & limit switch

1) Sound and light alarm system

The audible alarm is used to alert personnel of critical conditions, such as an overload, malfunction, or unsafe operation.Continuous Alarm is typically used for emergency situations like a malfunction or overload condition.Intermittent Beeps may be used for warnings (e.g., when a limit is approaching, such as a crane nearing its maximum load or operating range).A louder sound that may be employed to indicate an emergency or during high-risk operations.The alarm system should be loud enough to be heard above the noise of the crane's operation and from a distance, considering the size of the crane and the surrounding environment.

Visual Indicators (Lights): The visual light system serves as a secondary alert, helping workers who may be in areas where the sound alarm cannot be heard (e.g., in loud environments, or when they are visually monitoring crane operations). Flashing lights may be used to attract attention in emergency situations or to indicate an ongoing hazard.These lights are usually mounted on the crane's main structure and the gantry, visible from all directions where people might be working. The lights may also be installed at key control panels or ground-based operational stations.

Red Lights: Indicate critical failure, emergency, or unsafe conditions, such as crane overload or mechanical failure.

Yellow/Amber Lights: Warn of non-critical issues or impending danger, like approaching operational limits.

Green Lights: Indicate normal operation or that the crane is operating within safe parameters.

2) Limit switch

A limit switch on such a gantry crane plays a crucial role in safety and operational control. It is a mechanical or electronic device used to define the travel limits of the crane's movement. Limit switches are typically installed on the crane's trolley or gantry structure to prevent over-travel, which could cause mechanical damage or dangerous situations. They ensure that the crane does not move beyond its safe operating range in horizontal, vertical, or rotational directions.

Horizontal (longitudinal) travel limit switches – These prevent the crane from moving too far along the dock or construction site.

Vertical (hoisting) limit switches – These prevent the hook or lifting mechanism from traveling beyond its designed upper or lower limits.

Lateral (trolley or gantry) limit switches – These help prevent the trolley or gantry structure from moving out of its designated track or path.

Rotational limit switches – In cases where the crane has a rotating boom or arm, rotational limit switches help avoid over-rotation.

10.Safety Devices

1) Overload protection device: Overload Limiters: These devices monitor the load being lifted. If the crane exceeds its rated lifting capacity, the system will automatically stop operation or issue an alert.Continuously checks the load and boom angle, ensuring the crane does not exceed safe lifting conditions.

2) Anti-Sway Systems: Reduces the swinging motion of the load to prevent accidents or loss of control, especially when moving heavy or suspended loads.Some cranes use automated systems that control the speed of the crane or implement counterweights to manage the sway of the load.

3) Collision Prevention Systems: Prevent the crane from moving beyond safe limits. These switches stop the crane if it reaches dangerous positions (e.g., near another crane or an obstacle). Detect objects or personnel near the crane and prevent movement in hazardous areas.

4) Emergency Stop Systems: Strategically located emergency stop buttons can immediately halt crane operations in case of an emergency.Some large gantry cranes are equipped with a remote emergency shutdown feature to allow operators to stop the crane from a distance if needed.

5) Crane Monitoring Systems: Video surveillance cameras mounted on the crane or its operator cabin provide visibility of blind spots and ensure safe operations.These systems provide real-time data on crane performance, diagnostics, and usage. Operators and maintenance teams can monitor crane status remotely.

6) Wind and Weather Sensors: Detects wind speed to ensure that the crane doesn't operate in hazardous weather conditions, such as high winds.Detect adverse conditions (e.g., lightning, heavy rain, extreme temperatures) and may restrict crane movement if dangerous weather is detected.

11.Control Mode

1) Manual Control via Joysticks or Consoles: Operators can use sophisticated control panels to maneuver the crane. This may involve controlling the main hoist, the trolley, the gantry's lateral movement, and rotation of the crane.

2) Automated Systems: Some modern gantry cranes are equipped with automation and AI-based control systems to optimize efficiency, safety, and reduce human error. These systems can assist in performing repetitive tasks, positioning containers, or adjusting crane speeds based on cargo weight and environmental factors.

3) Remote Control: Many of the largest cranes are equipped with remote control systems, allowing operators to control the crane from a distance, often in a cab or even from a control room. This gives them a better view of the task and allows for safer operations in challenging environments.

4) Safety Systems: These cranes also feature robust safety systems to prevent accidents. These may include load sensors, anti-collision technology, and emergency stop mechanisms.

12.Sketch

Main technical

Advantages of a Regulated Electrically Operated Double Beam Gantry Crane

A Regulated Electrically Operated Double Beam Gantry Crane is designed to offer maximum performance, safety, and efficiency for industrial lifting applications. The integration of regulated electrical control and a robust double-beam design provides numerous operational, financial, and technical advantages:

1. High Load Capacity and Structural Stability

Benefit: The double-beam design ensures excellent load distribution and structural rigidity.

Advantage: Capable of handling very heavy and wide loads (up to 200+ tons), making it suitable for shipyards, steel plants, and infrastructure projects.

2. Precise and Smooth Operation

Benefit: Equipped with Variable Frequency Drives (VFDs) or inverter-based motor control.

Advantage: Enables precise regulation of hoisting, trolley, and gantry travel speeds-minimizing jerks, improving load positioning accuracy, and reducing mechanical stress.

3. Enhanced Safety

Benefit: Incorporates multiple safety systems like overload protection, limit switches, emergency stop functions, and anti-collision devices.

Advantage: Reduces the risk of accidents, protects personnel and equipment, and ensures compliance with global safety standards (e.g., IS, CE, FEM, OSHA).

4. Energy Efficiency and Cost Savings

Benefit: Regulated electric drives allow energy to be used more efficiently.

Advantage: Reduces energy consumption and wear on mechanical parts-lowering maintenance and operating costs over the crane's lifespan.

5. Improved Productivity

Benefit: Faster, more controlled movements and less downtime due to advanced motor and electrical systems.

Advantage: Boosts throughput in demanding environments like container yards, assembly plants, and construction sites.

6. Remote and Automated Operation Options

Benefit: Can be controlled via wireless remote, operator cabin, or integrated into semi-automated/fully automated systems.

Advantage: Improves operator convenience and allows integration into smart factory and Industry 4.0 systems.

7. Long Service Life

Benefit: Built with industrial-grade materials and electrical systems.

Advantage: With proper maintenance, offers decades of reliable performance even in harsh environments.

8. Flexible Installation

Benefit: Can be used both indoors and outdoors, with customizable span, lifting height, and track length.

Advantage: Adaptable to various applications, from warehouses to outdoor shipyards and construction zones.

9. Lower Lifecycle Cost

Benefit: High-quality electrical components reduce breakdown frequency.

Advantage: Although the initial investment is higher, the total cost of ownership is significantly lower due to reduced maintenance and energy savings.

10. Environmentally Friendly

Benefit: Fully electric operation eliminates the need for fuel-powered lifting systems.

Advantage: Supports green initiatives by reducing carbon emissions and noise pollution.

Applications of Regulated Electrically Operated Double Beam Gantry Crane

A Regulated Electrically Operated Double Beam Gantry Crane is designed for heavy-duty, high-precision material handling tasks across a wide range of industries. Its dual-girder structure and regulated electric control make it ideal for environments where large, heavy, or complex loads must be handled safely and efficiently.

1. Heavy Manufacturing and Fabrication

Application: Lifting and moving large fabricated components, machine parts, and heavy assemblies.

Industry: Machinery manufacturing, structural steel fabrication, automotive plants.

Advantage: Handles massive loads with stability, reducing manual labor and improving throughput.

2. Shipbuilding and Marine Engineering

Application: Handling ship components such as hull sections, engines, and propellers.

Industry: Shipyards, offshore platform yards, marine equipment assembly.

Advantage: Long span and high load capacity allow for lifting oversized marine components.

3. Steel Mills and Metal Yards

Application: Transporting steel coils, billets, ingots, slabs, and heavy scrap.

Industry: Steel production, metal recycling, rolling mills.

Advantage: Withstands harsh working environments and offers precise load handling over long spans.

4. Precast Concrete and Infrastructure Projects

Application: Moving heavy precast components like beams, girders, slabs, and panels.

Industry: Construction, civil engineering, bridge and tunnel building.

Advantage: Facilitates on-site or yard-based handling of heavy concrete elements with minimal setup.

5. Railways and Locomotive Workshops

Application: Lifting bogies, engines, and full railcars during assembly or maintenance.

Industry: Rail transport manufacturing and maintenance depots.

Advantage: Offers stable, controlled movement of long and heavy components during service or repair.

6. Power Plants and Energy Sector

Application: Handling turbines, generators, transformers, and maintenance equipment.

Industry: Thermal power, hydroelectric, nuclear, wind, and solar installation yards.

Advantage: Ensures safe, regulated lifting of critical and high-value components.

7. Ports and Container Yards

Application: Lifting and stacking containers or large bulk goods.

Industry: Port logistics, container terminals, shipping yards.

Advantage: Offers high efficiency and automation compatibility for container handling.

8. Aerospace and Defense

Application: Handling aircraft parts, missile systems, and armored components.

Industry: Aviation manufacturing, defense equipment production.

Advantage: High precision and safety for sensitive, high-value assets.

9. Mining and Earthmoving Equipment Maintenance

Application: Lifting and maintaining large earthmoving and mining machinery.

Industry: Mining, mineral processing, quarry operations.

Advantage: Handles oversized and extremely heavy components under challenging site conditions.

10. Warehousing and Logistics Hubs (for Heavy Goods)

Application: Internal transport of heavy equipment and bulk storage items.

Industry: Industrial storage facilities, logistics depots.

Advantage: Improves material handling in large-scale storage and distribution centers.

1. Design Phase: A team of engineers drafts the initial design, considering the required lifting capacity, dimensions, environmental factors (wind, seismic activity), and operational needs (speed, controls).The crane's frame is designed to support massive loads. This involves calculations for strength and stability, including stress tests to ensure safety.High-strength steel and alloys are selected for various crane components, such as beams, legs, and the gantry structure. Corrosion-resistant materials may also be chosen for parts exposed to harsh environments.

2. Component Fabrication: The gantry frame, which includes the legs, cross beams, and the top structure, is fabricated. This involves cutting, welding, and assembling steel sections.The legs, which are the primary load-bearing components, are fabricated as large vertical structures and then welded and reinforced.The crane's wheels or tracks are manufactured, allowing the gantry to move along the rails or ground track system. This is critical for positioning the crane for different operations.

3. Jacking and Assembly of the Main Frame: Large sections of the gantry crane are often built in a modular fashion, meaning various components are fabricated in different locations and then assembled at the site.For the assembly of the largest components, specialized equipment like jacks, cranes, and forklifts are used to lift and position individual pieces.Assembling the gantry structure requires precise alignment of each section. This often involves using advanced laser-guided systems to ensure everything is in place.

4. Installation of Hoisting System: This includes the main hoist, which is responsible for lifting loads. The hoist may have a series of pulleys, winches, and cables that need to be installed and tested.The crane requires a powerful motor to lift and lower heavy loads. This motor, often an electric or hydraulic system, is integrated into the hoist assembly and connected to the control system.

5. Electrical and Control Systems: The crane's electrical systems are installed, including sensors, safety features, and control systems. These include anti-collision systems, load sensors, and the software used to operate the crane remotely.Extensive testing is done to ensure the crane can be operated safely, with precision, and without errors. This includes testing for load balancing, movement control, and emergency shutdown systems.

6. Testing and Calibration: The crane undergoes rigorous load tests to ensure it can handle the maximum weight it's designed for. This includes static tests (no movement) and dynamic tests (moving with a load).The crane's movement, including its speed, lifting capacity, and range of motion, is tested under real-world conditions. This ensures the crane operates as intended.Extensive safety inspections are performed to verify compliance with international standards for heavy lifting and industrial operations.

7. Final Assembly and Commissioning: Once all systems are tested and fully functional, the crane is completed and prepared for commissioning.If the crane was partially constructed elsewhere, the final assembly might take place on-site, where the crane is moved to its designated operational area.Operators and maintenance staff are trained in the operation of the gantry crane, which includes safety procedures, operational protocols, and routine maintenance tasks.

8. Operational Use and Maintenance: The crane will undergo periodic inspections and maintenance to ensure its continued functionality and safety. This includes checking for wear and tear on critical components like cables, motors, and hoists.Over time, the crane may undergo upgrades or modifications to improve its efficiency, safety, or lifting capacity.

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%.