Gantry Crane With Wire Rope Hoist

A Gantry Crane with Wire Rope Hoist is a type of overhead lifting equipment that combines a gantry structure with a wire rope hoist system for reliable and high-capacity material handling. It is widely used in industrial environments where precision, durability, and strength are required for lifting heavy loads.

This crane features vertical legs mounted on wheels or rails, supporting a horizontal beam (girder) on which the wire rope hoist travels. The wire rope hoist uses a drum and steel cable mechanism, offering superior lifting power and durability compared to chain hoists, making it ideal for heavy-duty operations.

Key Features:

Wire Rope Hoist: Provides smooth and precise lifting with high load capacity and long service life.

Gantry Frame: Supports outdoor and indoor use; available in fixed, adjustable, or mobile configurations.

High Lifting Capacity: Typically ranges from 1 ton to 300 tons or more, depending on design.

Accurate Load Handling: Suitable for demanding operations requiring exact positioning and speed control.

Typical Design Options:

Single or Double Girder Configuration

Fixed or Adjustable Height

Mobile (rubber-tired) or Rail-Mounted Travel

Electric-powered or Diesel-powered systems

Manual, pendant, or remote control operation

Core Components：Engine, Bearing, Gearbox, Motor, Gear

Place of Origin：Henan, China

Warranty：2 years

Weight (KG)：50000 kg

Video outgoing-inspection：Provided

Machinery Test Report：Provided

Application：Outdoor

Keywords：Gantry Crane

Rated Loading Capacity：50Ton

Cross travelling speed：44.6m/min

Long travelling speed：47.1m/min

Control way：cabin

Power supply：Cable reel

Steel track：QU80

Power：3-phase AC 50HZ 380V

1.Main Beam (Girder)

Horizontal beam that supports the wire rope hoist.

Can be:

Single girder – for lighter loads

Double girder – for heavier loads and longer spans

The hoist travels along the girder to position the load.

Legs (Support Frames)

Vertical supports connecting the main beam to the base.

May be rigid or have an A-frame or box-type design.

Provide height clearance for load movement.

Wire Rope Hoist

Core lifting mechanism using steel wire rope wound on a drum.

Includes:

Electric motor for lifting

Drum and wire rope

Hook block

Brakes and gearbox

Offers high lifting capacity, precision control, and long service life.

3.End Carriages

Located at both ends of the main beam.

Support wheels or bogies for crane movement.

Contain travel motors, brakes, and gearboxes to enable movement along rails or the ground.

4.Travel Mechanism

Enables horizontal movement of the entire gantry crane.

Types:

Rail-mounted (RMG): guided movement on fixed tracks.

Rubber-tyred (RTG): mobile on rubber wheels, more flexible.

Includes drive motors and steering systems for mobility.

5.Trolley travelling mechanism

1) Structural composition

Trolley frame: The frame is typically made of high-strength steel to support the load and withstand the stresses during operation.

Wheel set: The trolley is equipped with wheels that run on the rails of the main girder. These wheels are often made of hardened steel or cast steel to ensure durability and wear resistance.

Drive device: Electric motors are commonly used to provide the necessary power for the trolley's movement A gearbox is used to control the speed and torque of the trolley's movement.Couplings connect the motor to the gearbox and ensure smooth transmission of power to the wheels.

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2) Function of the trolley operating mechanism

Horizontal Movement: The primary function of the trolley traveling mechanism is to move the trolley horizontally across the length of the main girders. This movement allows the crane to position the hoist over a desired load location.

Load Handling: By moving along the main girders, the trolley helps in positioning the hoist system accurately above the load, which is necessary for lifting and transferring goods efficiently.

Power Transmission: The traveling mechanism typically uses electric motors and gear systems to provide the necessary torque and speed for the trolley's movement. The motors can be either AC or DC, depending on the design and requirements of the crane.

Rails and Wheels: The trolley runs on rails that are mounted on the main girders. The wheels on the trolley are designed to travel along these rails, ensuring smooth and stable movement. The wheels may be fitted with flanges to prevent lateral movement and maintain alignment.

Safety Mechanisms: The traveling mechanism is equipped with safety features such as limit switches, braking systems, and overload sensors to prevent accidents and ensure the safe operation of the crane.

6.Crane wheel

1) Function of wheels

Load Bearing: In a double main girder gantry crane, each wheel supports a significant portion of the crane's load. The wheels must be engineered to handle both the static and dynamic loads imposed during lifting operations.

Material Handling and Safety: The design of crane wheels must ensure safe operation, especially when handling heavy or oversized loads. The wheels should be engineered to minimize noise and vibrations during operation.

Rail Compatibility: Crane wheels are designed to run on specific rail types (e.g., flat or curved tracks). The size and shape of the wheel flange must match the rail profile to ensure proper fit and smooth operation.

2) Design requirements

Material and Design: Crane wheels are typically made of high-strength steel or cast iron to withstand the heavy loads and stresses associated with lifting and transporting materials. The design often includes a flange to ensure proper alignment and prevent the wheels from derailing off the tracks.

7.Crane Hook

The crane hook of a double main girder gantry crane is an essential component used for lifting and transporting heavy loads.

Design and Structure

Material: Typically made of high-strength steel to withstand heavy loads and provide durability.

Shape: The hook often has a C-shape or a pointed end for securely holding lifting slings or chains.

Size and Capacity: It is designed to match the lifting capacity of the crane, which can range from a few tons to several hundred tons for large industrial cranes.

Types of Hooks

Single Hook: Common in standard applications, used for lifting a load from a single point.

Double Hook: Utilized when a more balanced load is needed, often in double main girder designs for higher lifting capacities.

Crab Hook: In gantry cranes, the hook may be mounted on a trolley or crab that runs along the girders.

Motor

The motor of a double main girder gantry crane is an essential component that provides the power necessary for lifting, traveling, and sometimes rotating the crane's hoist or trolley system.The motor's power rating must match the crane's capacity and the load it needs to lift. Typically, these motors range from a few kilowatts up to hundreds of kilowatts, depending on the lifting and traveling requirements.

Motors can be equipped with variable frequency drives (VFDs) for smooth speed adjustments and energy savings.Safety and control systems like overload protection, braking systems, and emergency stops are incorporated for safe operation.

The motor should be compatible with the electrical supply available at the operating site, which can vary (e.g., 380V/50Hz, 480V/60Hz).The motor in a double main girder gantry crane is used for operations such as lifting heavy loads, moving the crane along the tracks (longitudinal travel), and sometimes lateral movement (cross travel) of the hoist or trolley.

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Sound and light alarm system & limit switch

1) Sound and light alarm system

A double main girder gantry crane, commonly used in heavy-duty operations, often incorporates safety mechanisms like sound and light alarm systems to ensure safe operations.

Sound Alarm (Horns/Buzzers): These are typically loud, audible devices that emit a distinctive sound to alert people in and around the working area. The sound level is designed to be high enough to be heard over operational noise.

Light Alarm (Flashing Lights/Beacons): Visual signals, such as flashing lights or rotating beacons, help alert personnel visually, especially in noisy environments where sound alarms may be insufficient.

2) Limit switch

A limit switch on a Double Main Girder Gantry Crane is a safety device used to prevent the crane from moving beyond a designated range. This ensures the protection of both the crane and its surroundings, as well as any loads being lifted.

Key Functions of Limit Switches:

Position Control: The limit switch helps monitor and control the position of the crane's trolley, hoist, and gantry to prevent over-travel and collisions.

Safety Shutdown: If the crane moves past its allowed limits, the limit switch signals the control system to stop the motor and prevent damage or hazardous situations.

Emergency Stop: It can act as an emergency cutoff to shut down the crane when it approaches the limits of its track or rail, preventing it from derailing or causing accidents.

Types of Limit Switches Used:

Mechanical Limit Switches: Activated by physical contact, often using a lever or cam that triggers the switch when moved by the crane's motion.

Electronic Limit Switches: Use sensors (e.g., inductive, capacitive, or optical sensors) for non-contact detection, providing higher durability and reducing wear and tear.

Rotary Limit Switches: Typically used in applications where rotational motion needs to be monitored, such as in hoists.

Linear Limit Switches: Used for applications where linear travel is monitored, commonly found in the movement of the trolley.

10.Safety Devices

1) 1. Overload Protection Device

Function: Prevents the crane from lifting loads that exceed its rated capacity.

2. Limit Switches

Function: Prevents the crane from moving beyond a set range during operations.

3. Emergency Stop Button

Function: Allows operators to quickly shut down the crane in case of an emergency.

4. Anti-Collision Device

Function: Prevents collisions between the crane and other structures or equipment.

5. Load Sway Control

Function: Reduces load sway during operations, which can be dangerous if uncontrolled.

6. Brake Systems

Function: Ensures that the crane remains in a stationary position when not in motion.

7. Safety Interlocks

Function: Prevents the operation of the crane if certain safety conditions are not met.

8. Warning Alarms and Signal Lights

Function: Alerts personnel in the vicinity of the crane's movement.

9. Anti-Tipping Device

Function: Protects against crane tipping due to uneven load distribution or excessive loading.

10. Cooling System for Motors

Function: Prevents motors from overheating during extended use.

11. Remote Control Systems

Function: Allows operators to control the crane from a safe distance.

12. Crane Monitoring Systems

Function: Provides real-time monitoring of operational parameters such as load weight, speed, and position.

13. Lighting and Visibility Aids

Function: Ensures that the operator has clear visibility, especially in low-light conditions.

11.Control Mode

1)1. Pendant Control

Description: The crane operator uses a wired control pendant to manage the movement of the crane and hoist.

Advantages: Simple to use, cost-effective, and provides direct control from a safe distance.

Usage: Commonly used in stationary or semi-stationary operations where the operator can be close to the crane.

2. Radio Remote Control

Description: Operators use a wireless control unit, which communicates with the crane via radio signals.

Advantages: Offers more flexibility as the operator can control the crane from a greater distance and access hard-to-reach areas.

Usage: Ideal for more complex operations and environments where operator mobility is essential.

3. Cabin Control

Description: The operator sits in a cabin on the crane itself and controls it using a combination of joysticks, buttons, or other controls.

Advantages: Provides a better view of the working area and greater precision in controlling the crane.

Usage: Suitable for heavy-duty operations or when a higher level of control is needed for positioning and maneuvering.

4. Automated Control (Semi-Automatic and Fully Automated)

Description: The crane can be controlled by programmed commands or integrated with automated systems for autonomous operation.

Advantages: Reduces human intervention, improves precision, and enhances safety for repetitive tasks.

Usage: Often used in large-scale operations where high efficiency and continuous operation are necessary.

5. Hybrid Control

Description: Combines manual operation (using pendant, remote, or cabin control) with automated features that can be engaged as needed.

Advantages: Offers versatility for operators who need to switch between manual and automated modes for specific tasks.

Usage: Common in systems designed to be adaptable to various operational requirements.

12.Sketch

Main technical

A Gantry Crane equipped with a Wire Rope Hoist offers several distinct advantages, especially in demanding and heavy-duty lifting operations. Its combination of a strong gantry structure and durable hoisting mechanism makes it ideal for industrial applications requiring reliability, efficiency, and high load capacity.

💪 1. High Load Capacity

Wire rope hoists can handle heavier loads than chain hoists.

Ideal for lifting from 1 ton to over 300 tons.

Suitable for large components, machinery, steel structures, and concrete elements.

🧵 2. Smooth and Precise Lifting

Wire rope hoists offer smooth operation with minimal load sway.

Excellent for operations that require accurate load positioning.

⚙️ 3. Durable and Long-Lasting

Steel wire ropes are highly resistant to wear and corrosion.

Lower maintenance frequency compared to chain hoists in heavy-duty settings.

Designed for continuous and intensive use.

🏗️ 4. Flexible Gantry Configuration

Can be designed as:

Single girder or double girder

Fixed, adjustable height, or mobile

Rail-mounted (RMG) or rubber-tyred (RTG)

Easily tailored to site conditions and workspace size.

🔄 5. Wide Coverage and Reach

Gantry systems provide a large working area without the need for building structures like overhead runways.

Ideal for indoor or outdoor use in workshops, yards, ports, and assembly areas.

🔌 6. Multiple Power and Control Options

Can be powered by electric, diesel, or battery systems.

Operated via pendant, wireless remote, or cabin controls.

Some systems offer VFD (variable frequency drives) for fine speed control.

🔒 7. Safety and Protection Features

Equipped with advanced safety systems such as:

Overload protection

Limit switches

Emergency stop

Anti-sway technology

Ensures operator safety and load protection in all environments.

💰 8. Cost-Effective for Heavy Lifting

More economical than building permanent overhead crane systems.

Especially cost-effective for temporary work areas or outdoor operations.

Gantry Crane with Wire Rope Hoist – Applications

A Gantry Crane with Wire Rope Hoist is widely used in industrial, construction, and logistics sectors where heavy lifting, precise control, and reliability are required. Its strength and adaptability make it suitable for both indoor facilities and outdoor yards.

🏗️ 1. Construction and Infrastructure Projects

Lifting and placing precast concrete segments, steel beams, and bridge components.

Used in bridge building, roadway projects, and tunnel construction.

🧱 2. Precast Concrete and Fabrication Yards

Handling of precast slabs, pipes, walls, and box culverts.

Enables precise stacking, loading, and movement of bulky elements.

⚙️ 3. Heavy Machinery and Equipment Manufacturing

Lifting and assembling large machinery, engines, turbines, and heavy parts.

Supports assembly lines and maintenance operations in plants and workshops.

🚢 4. Shipbuilding and Marine Industry

Moving ship sections, propellers, engines, and heavy steel plates.

Operates in dockyards, dry docks, and fitting-out berths.

🚚 5. Logistics and Freight Yards

Loading and unloading containers, cargo crates, and industrial equipment.

Ideal for rail yards, truck terminals, and portside operations.

🏭 6. Steel Plants and Foundries

Transporting steel coils, ingots, molds, and castings.

Withstands high temperatures and harsh conditions.

🔋 7. Power and Energy Sector

Lifting transformers, generators, wind turbine components, and pressure vessels.

Used in hydropower stations, nuclear facilities, and wind farms.

🧰 8. Aerospace and Defense

Moving aircraft parts, fuselage sections, and assembly jigs.

Provides high-precision handling in aerospace production lines.

🛠️ 9. Mining and Cement Plants

Handling mining equipment, crushers, hoppers, and cement mill components.

Operates effectively in dusty and heavy-load environments.

1. Design and Engineering

Blueprint and Structural Design: Engineering teams design the crane based on specifications, considering the weight, span, lifting capacity, and working environment.

Component Specifications: Detailed specifications for components such as the main girders, end beams, hoist system, trolley, and electrical components are prepared.

2. Material Selection and Procurement

Steel Material Selection: High-strength steel materials are chosen for the main girders, columns, and other critical parts.

Procurement: Materials, such as steel plates, sections, bolts, and electrical components, are sourced and inspected for quality.

3. Cutting and Pre-Fabrication

Cutting and Shaping: Steel components are cut, shaped, and welded into preliminary forms according to the design specifications.

Pre-Fabrication Assembly: Components such as beams and girders are pre-assembled to verify that they fit together properly.

4. Welding and Structural Assembly

Welding: Main girders, columns, and other structural components are welded to create a sturdy framework. Specialized welding techniques are used to ensure strength and durability.

Structural Assembly: The main girders and end beams are assembled, ensuring precise alignment for balanced load distribution.

Quality Control: Welding seams and joints are inspected using non-destructive testing (e.g., ultrasonic or X-ray testing) for any structural defects.

5. Machining and Finishing

Machining of Parts: Critical parts such as the wheels, trolley components, and hoists undergo machining for proper fitting and smooth operation.

Surface Treatment: Steel parts are cleaned and subjected to surface treatments like sandblasting and coating to prevent rust and enhance durability.

Painting and Coating: Protective coatings are applied for weather resistance, with a primer followed by top coats.

6. Assembly of Crane Components

Main Girder Assembly: The two main girders are mounted and aligned.

End Beam Installation: End beams are fixed to the main girders, forming the frame of the crane.

Hoist and Trolley Installation: The hoist mechanism and trolley are mounted on the main girder rails and tested for alignment and operational smoothness.

7. Electrical and Control Systems Installation

Wiring and Cabling: Electrical wiring is installed for power supply, control circuits, and safety systems.

Control Panel and Safety Features: The control panel is mounted, with safety features such as limit switches, emergency stops, and overload protection integrated and tested.

Control System Programming: The crane's control system is programmed and tested for correct operation.

8. Testing and Quality Assurance

Load Testing: The crane is subjected to load tests to ensure it can handle its rated capacity without issues.

Operational Testing: Functional tests are performed to check movements, responsiveness, braking systems, and electrical operations.

Inspection and Certification: The crane undergoes final inspections to verify compliance with safety regulations and standards. Certification may be issued by relevant authorities.

9. Final Adjustments and Delivery Preparation

Final Adjustments: Any minor adjustments are made to ensure smooth operation.

Documentation: Operation manuals, maintenance guidelines, and certification documents are prepared for delivery.

Packaging and Shipping: The crane is packaged securely for shipment, ensuring all parts are protected during transit.

10. Installation and Commissioning (at Site)

On-site Assembly: The crane is assembled at the customer's location if required.

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%.