Electromech Eot Cranes

 

Electromech Eot Cranes, also known as Electric Overhead Traveling Cranes, are essential material handling equipment used in various industries such as manufacturing, construction, shipping, and warehouses. These cranes are designed to lift and move heavy loads in a horizontal direction along an overhead track, providing efficient and precise movement in confined spaces. Electromech EOT cranes combine the power of electricity with the precision of mechanical systems, offering a reliable, cost-effective solution for lifting heavy materials.

Electromech Eot Cranes can handle loads ranging from a few tons to several hundred tons, making them suitable for a wide variety of industrial applications. They are designed to lift and move heavy goods, raw materials, and components with ease and precision.Electromech Eot Cranes are built with high-strength materials and sturdy components, EOT cranes are durable and can withstand harsh working environments, ensuring longevity and minimal maintenance.

Electromechanical EOT cranes are used in various industries, including steel plants, ports, construction sites, warehouses, and power plants. They are ideal for lifting and transporting heavy equipment, materials, and containers.The crane's motorized electric system allows smooth and precise control of both lifting and horizontal movement. The electric drive is energy-efficient, reducing operational costs and increasing the crane's overall performance.

Safety is a priority in crane design, and EOT cranes come equipped with advanced safety features such as overload protection, limit switches, emergency stop buttons, and anti-collision systems to ensure smooth and accident-free operations.These cranes offer precise control over load movements, making them suitable for applications that require fine-tuned positioning. The control systems are designed to be user-friendly, allowing operators to efficiently manage load lifting, lowering, and horizontal movement.

Electromechanical EOT cranes can be customized to meet specific operational requirements, such as different load capacities, span lengths, lifting heights, and control systems (manual or automated).The crane's design ensures that components are easily accessible for routine maintenance and repairs. This reduces downtime and increases the lifespan of the crane.

Core Components：Engine, Gearbox, Motor

Place of Origin：Henan, China

Warranty：1 Year

Weight (KG)：1500 kg

Video outgoing-inspection：Provided

Machinery Test Report：Provided

Working Class：A3/A4/A5

Lifting Capacity：3,5,10,16,20,25,32 ton

Lifting Mechanism：Electric Wire Rope Hoist

Power：3P 220--440 V/50HZ 60HZ

Crane Traveling Speed：3-30m/min

Working Temperature：-20-40℃

Control Model：Hand Shank/Remote control

Color：Customers' Demand

 

 

1.Main beam

1) The main beam of an electromechanical EOT (Electric Overhead Traveling) crane is a crucial structural component designed to support the load-carrying elements of the crane. It acts as the primary horizontal support structure for the crane's hoisting mechanism, traveling mechanism, and trolley.

The main beam is typically made of steel or welded steel sections (e.g., I-beams, box girders, or welded plate girders) to ensure strength and durability under heavy loads.It needs to be robust and stable, capable of handling the stresses exerted by the crane's load and dynamic forces, such as acceleration, deceleration, and lifting.Common profiles for the main beam include I-beams, box girders, and trusses, depending on the load requirements and span.

The main beam is designed to bear the weight of the crane's trolley and hoist, as well as the load being lifted. The beam must be designed to withstand not only static loads but also dynamic loads due to the motion of the crane. In double-girder cranes, two parallel beams (main beams) are used to provide additional strength and stability. This type allows for higher lifting capacities and longer spans.For larger and more heavy-duty applications, box girders provide additional strength and stability by enclosing the crane's mechanisms and offering better resistance to torsional forces.

2.Lifting System

1) Motor: The motor of the lifting system in an Electromechanical Overhead Traveling (EOT) crane plays a crucial role in raising and lowering loads. This motor is typically part of the crane's hoist mechanism and needs to be powerful and reliable to handle the heavy lifting demands in various industries such as construction, manufacturing, and warehouses.

2) Reducer: A Reducer in the lifting system of an Electromechanical EOT (Electric Overhead Traveling) crane plays a crucial role in the transmission of power from the motor to the lifting mechanism, typically the hoist. The reducer (also called a gearbox or gear reducer) is designed to convert the high-speed, low-torque output of the motor into a low-speed, high-torque output required to lift heavy loads efficiently.

3) Drum: The drum in a lifting system is primarily responsible for winding and unwinding the wire rope (or cable) that lifts and lowers the load. It is a cylindrical structure around which the rope is wound as the crane moves the load. The drum's motion is controlled by the crane's hoist motor, which provides the power for lifting and lowering.

4) Wire rope: Wire ropes used in the lifting systems of Electromechanical Overhead Travelling (EOT) cranes are crucial components responsible for lifting and lowering heavy loads. They are designed to withstand high tension, dynamic loads, and environmental conditions while maintaining durability and safety.

5) Pulley block: The pulley block in a lifting system, specifically for electromechanical (electromagnetic) overhead cranes (EOT cranes), is an essential component that facilitates the lifting and lowering of loads. It plays a critical role in managing the mechanical load distribution, reducing friction, and enabling smooth movement of the crane's hoist system.

6) Lifting device:The lifting device of an Electromechanical Overhead Traveling (EOT) Crane typically refers to the component responsible for the actual lifting and lowering of loads. In an EOT crane system, the lifting device is a crucial part of the crane's mechanism that ensures the movement of heavy loads vertically.

 

3.End carriage

The "end carriage" of an electromechanical EOT (Electric Overhead Traveling) crane refers to the supporting structure that carries the crane bridge along the rails. It consists of a set of wheels or axles that allow the crane to move horizontally along the length of the crane runway. The end carriages are critical components of an overhead crane, as they directly impact the stability, movement, and load distribution.

The end carriage typically includes a motor-driven system (such as a gear motor) that powers the wheels, allowing for controlled movement of the crane along its runway. This mechanism may be equipped with a brake system to stop or control the speed of movement.These are mounted on the end carriage frame and are used for running along the rail system. The wheels must be designed to bear heavy loads and ensure smooth movement.

The electrical system for controlling the end carriage movement, integrated with the crane's overall control system, which allows the operator to manage the crane's position on the track. The structure that supports the wheels and axles. It is designed to hold the weight of the crane bridge and the load it carries. Bearings are used to minimize friction and ensure smooth rotation of the wheels, while supports help stabilize the structure during operation.The design of the end carriage must ensure that the crane is stable during operation, especially under heavy loads.

In summary, end carriages are a vital part of an EOT crane's structure, enabling the crane to travel along its runway and carry loads efficiently and safely.

 

4.Crane travelling mechanism

1) Working principle

When the travel motor is energized, it rotates the drive shaft connected to the wheels of the end truck.The rotation of the wheels propels the entire crane along the runway. The direction of movement (forward or backward) is controlled by switching the polarity of the motor's power supply, which reverses the motor's rotation.The crane can be controlled to move at different speeds, depending on the motor's speed and the control system settings.

2) Functions of the crane operating mechanism

Lifting and Lowering Loads: The most basic function of an EOT crane is to lift and lower materials or loads using a hoist mechanism, which is powered electrically.

Horizontal Movement: EOT cranes can travel horizontally along a fixed path (rails or beams), allowing them to move loads from one position to another within the working area.

Load Positioning: They allow precise positioning of heavy or bulky loads. This is crucial in environments where the positioning of loads needs to be very accurate, such as in manufacturing plants or warehouses.

Vertical Movement: The hoisting mechanism enables the crane to lift loads vertically, which is essential for stacking materials or transporting them between different levels in a warehouse or production facility.

Heavy Load Handling: EOT cranes are designed to handle very heavy loads, often in the range of several tons, depending on the crane's capacity. This is critical in industries like steel, construction, and manufacturing.

Flexibility in Movement: These cranes can move along the full length of their track and can be controlled to make fine adjustments in their positioning. This flexibility makes them suitable for a wide range of applications.

Remote Operation: Modern EOT cranes are often operated via remote controls or cab-controlled systems, offering ease of use and enhancing safety.

5.Trolley travelling mechanism

1) Structural composition

Motor:The traveling mechanism is powered by an electric motor, typically a DC or AC motor, that drives the trolley's wheels via a gear reduction system.The motor is often coupled with a variable frequency drive (VFD) to allow precise control of speed, acceleration, and deceleration.

Drive System:The motor transmits power through a gearbox (reducer) that reduces the motor speed and increases the torque, making it suitable for heavy load movement.A coupling connects the motor shaft to the gearbox or drive shaft, ensuring power transmission.

Wheels:The trolley rides on a rail system that is typically mounted along the overhead beam. These wheels, often made of steel, are mounted on the trolley frame and move along the rails of the crane runway.The wheels are sometimes equipped with bearings to reduce friction and ensure smooth movement.

Rail:The crane is designed with a set of parallel rails (generally part of the overhead beam structure), which guide the trolley's movement.These rails need to be installed properly to ensure smooth and accurate travel of the trolley.

2) Function of the trolley operating mechanism

Horizontal Movement of the Hoist:The trolley mechanism moves the hoisting unit (the component that lifts and lowers loads) along the length of the crane's bridge. This allows the crane to move the load horizontally across the work area, offering precise control over where the load is placed or lifted.

Load Positioning:The trolley helps position the load accurately over a specific spot or in relation to other machinery, workstations, or storage areas. This positioning is vital for tasks like loading/unloading, assembly, or material handling.

Support for the Hoist Mechanism:The trolley provides a stable support base for the hoist, which is responsible for lifting and lowering the load. It ensures that the hoist remains aligned and balanced as it moves, allowing the crane to operate smoothly and with reduced wear on components.

Smooth Movement:The trolley is equipped with wheels or rollers that run along a rail or track system fixed to the crane's bridge. The smooth operation of these wheels or rollers ensures minimal friction, which reduces energy consumption and wear on components.

Precise Control:The trolley is typically powered by electric motors, and it is controlled by a variable frequency drive (VFD) or other control systems to allow for precise speed and position adjustments. This ensures the crane operates safely, with smooth acceleration and deceleration.

6.Crane wheel

1) Function of wheels

Support Load: The crane wheels carry the entire weight of the crane and its load. This includes both the dead weight of the crane and any additional load it is lifting.

Movement: The wheels facilitate the horizontal movement of the crane along the runway, often powered by an electric motor and associated gear train.

Safety: Crane wheels must be durable and strong to ensure smooth movement and minimize wear and tear.

2) Design requirements

Wheel Diameter: The diameter of the wheel affects the load capacity and the smoothness of movement. Larger diameter wheels are typically used for higher load capacities.

Material Hardness: The hardness of the material must be high enough to resist wear, but it also needs to provide some level of flexibility to prevent brittleness under heavy loads.

Bearing Type: Many crane wheels are equipped with bearings to reduce friction and improve efficiency, though some cranes may use a bearingless design for certain applications.

Track Type: The design of the wheel must match the rail track used, ensuring the wheel's flange size, profile, and load-bearing capacity are suited to the specific crane rail.

7.Crane Hook

The crane hook is an essential component of Electromechanical Overhead Traveling (EOT) cranes, responsible for lifting and lowering heavy loads safely and efficiently. In an EOT crane, the hook is attached to the hoist mechanism and is designed to hold and manipulate loads as they are moved across the crane's span.

1. Material and Design

Material: Crane hooks are typically made from high-strength steel alloys (such as carbon steel or alloy steel) to withstand the heavy loads and stresses encountered during lifting operations.

Design: The hook generally has a "C" or "V" shape to securely hold lifting slings or load attachments. The throat of the hook is wide enough to accommodate the lifting apparatus, while the tip is rounded or curved to prevent the load from slipping.

2. Load Capacity

Crane hooks are designed based on the load capacity of the crane. They need to handle the maximum weight that the crane is rated for, including safety factors to prevent hook failure. The load capacity of the hook must be clearly defined according to industry standards and crane specifications.

3. Safety Features

Safety Latch: Most crane hooks are equipped with a safety latch to prevent the load from becoming dislodged during operation. This latch can either be manual or automatic, depending on the crane's design.

Inspection and Testing: Hooks undergo rigorous inspection, testing, and certification processes to ensure they meet safety standards. This includes checking for cracks, wear, deformation, and other defects.

8.Motor

Features of EOT Crane Motors:

High Torque: Required for lifting and moving heavy loads.

Variable Speed: Many EOT cranes need variable speed control for precise load handling.

Durability: Motors need to withstand harsh industrial environments, including high humidity, dust, and vibration.

High Starting Torque: The ability to handle high starting currents without damaging the motor or control system.

Types of Drives and Control Systems:

DC Drive Motors: These are used in some older systems or specialized applications, particularly where smooth and precise control is needed.

AC Variable Frequency Drives (VFD): More modern EOT cranes often use VFDs to control AC motors for variable speed control, smoother operation, and energy efficiency.

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9.Sound and light alarm system & limit switch

1) Sound and light alarm system

Sound Alarm (Horn/Alarm Bell):Warns of impending danger or alerts workers about the crane's movement, overload conditions, or any abnormal situation.The sound alarm can be triggered by:

Crane overload (weight exceeding safe limits).High-speed operation or when exceeding safe travel limits.Emergency stop situations.Crane approaching or reaching a dangerous position.Typically a loud horn, siren, or bell with high decibel output to ensure it can be heard over surrounding noise in industrial environments.

Light Alarm (Flashing Lights or Signal Beacons):Provides a visual cue that complements the sound alarm, ensuring that even if the sound is not heard, workers can still see the alert. Often used in noisy environments.

2) Limit switch

In the context of electromechanical (EOT) cranes, a limit switch is an important safety and control component that serves to stop or limit the movement of the crane once it has reached a predefined position. These switches are used to prevent over-travel or damage by ensuring the crane's movements are confined to specific limits. Limit switches are typically mounted at the end of the crane's travel path on the hoist, trolley, or bridge.

Purpose: Prevent over-travel of the crane's hoist, trolley, and bridge.

Types:

Hoist limit switch: Prevents the hook from traveling too high or low.

Trolley limit switch: Prevents the trolley from moving too far along the beam.

Bridge limit switch: Stops the bridge from moving beyond its designated travel range.

10.Safety Devices

1. Limit Switches

Purpose: Prevent over-travel of the crane's hoist, trolley, and bridge.

Types:

Hoist limit switch: Prevents the hook from traveling too high or low.

Trolley limit switch: Prevents the trolley from moving too far along the beam.

Bridge limit switch: Stops the bridge from moving beyond its designated travel range.

2. Overload Protection

Purpose: Prevents the crane from lifting more than its rated load capacity.

Types:

Load cells: Monitor the weight of the load being lifted.

Overload warning system: An alarm or visual indicator that activates if the crane exceeds its load capacity.

3. Emergency Stop Button

Purpose: Provides a quick means to stop the crane immediately in case of an emergency.

Location: Usually placed in easily accessible locations around the crane, including the operator's cabin and remote control unit.

4. Brake System

Purpose: Ensures the crane can stop and hold its load safely.

Types:

Service brake: Used to stop the crane during normal operation.

Holding brake: Keeps the load stationary when the crane is at rest.

Emergency brake: Engages if the service brakes fail, ensuring safety in emergency situations.

5. Anti-collision Device

Purpose: Prevents the crane from colliding with other objects, structures, or other cranes.

Types:

Proximity sensors: Detect obstacles in the crane's path.

Radar or laser systems: Used to detect objects in real time and adjust the crane's movement accordingly.

6. Overhoist and Overlowering Protection

Purpose: Prevents the hoist hook from rising too high or lowering too much, which could lead to accidents or damage.

Function: Automatically stops the hoist if the hook reaches a predefined high or low point.

7. Warning and Indicating Lights

Purpose: Provides visual alerts to the operator and nearby personnel.

Types:

Flashing lights: Warn of crane movement.

Work lights: Ensure the crane's operating area is well-lit, especially in low visibility conditions.

8. Crane Load Moment Indicator (LMI)

Purpose: Monitors the load moment (a combination of the load's weight and its position on the crane) to ensure it remains within safe limits.

Feature: Alerts the operator if the crane is at risk of tipping over or exceeding its capacity.

9. Swing Limiter

Purpose: Prevents the crane's hook from swinging too much and hitting surrounding structures or other objects.

Feature: Limits the angle of movement of the load, especially in high-speed operations.

10. Emergency Lighting

Purpose: Provides illumination in the crane's operating area in case of a power failure or during nighttime operation.

11. Cranes with Sensors for Speed Control

Purpose: These sensors monitor the crane's speed and ensure it operates within safe limits, preventing excessive speed that could lead to accidents.

12. Ground Control Panel and Remote Control

Purpose: Allows operators to control and monitor the crane from the ground or a safe distance.

Features: Emergency stop, load monitoring, and movement control from the ground.

13. Horn/Alarm System

Purpose: Alerts personnel when the crane is about to move or during emergency situations.

Location: Typically located at the operator's station or as part of the crane's electrical system.

14. Anti-Sway Device

Purpose: Reduces the swinging motion of the load during movement, providing more stability.

Function: Uses sensors and feedback mechanisms to counteract swinging.

15. Fall Protection Systems (for Maintenance)

Purpose: Ensures safety for personnel working on or around the crane during maintenance.

Types: Fall arrest systems, safety rails, and lifelines.

11.Control Mode

1. Pendant Control Mode

Description: The crane operator controls the crane using a handheld pendant control (a wired or wireless controller). The pendant typically has buttons or a joystick to control the hoist, trolley, and bridge movements.

Usage: Most commonly used for light-duty cranes and in situations where the operator needs to be mobile but still within close proximity to the crane.

Advantages:

Simple to use and relatively low cost.

Operator has direct control over the crane's movements.

Disadvantages:

Limited range of movement, as the operator must stay within the pendant's reach.

Not ideal for large or complex operations.

2. Radio Remote Control Mode

Description: In this mode, the operator uses a wireless radio frequency (RF) remote control to operate the crane. It provides the operator with more mobility compared to pendant control.

Usage: Used in cranes where operators need to work from a distance or in environments where mobility is essential.

Advantages:

Allows the operator to move freely within a larger area.

Greater flexibility and comfort compared to wired pendant control.

Disadvantages:

Can be affected by signal interference or power failures.

Requires careful programming and management of safety features.

3. Cabin Control Mode

Description: The crane operator is positioned inside a control cabin located on the crane's bridge. This mode provides full control over the crane's movements through a series of controls, levers, and buttons inside the cabin.

Usage: Typically used for larger, heavier-duty cranes, such as those used in steel mills, ports, or large warehouses.

Advantages:

Operator has a comprehensive view of the entire work area.

Allows for precise control in complex lifting tasks.

Disadvantages:

Limited visibility of areas not within the operator's direct line of sight.

Operators may experience fatigue after long working hours inside the cabin.

4. Automated Control Mode

Description: In this mode, the crane's movements are controlled automatically by pre-programmed commands or a central control system. The operator can monitor and adjust settings but does not manually control the movements.

Usage: Used in environments where repetitive tasks are performed, such as in large industrial or manufacturing plants.

Advantages:

High precision and efficiency, with minimal human intervention.

Reduced risk of human error.

Disadvantages:

High initial investment in automation technology.

Requires regular maintenance of automated systems and sensors.

5. Joy Stick Control Mode

Description: A joystick or control lever is used to operate the crane, usually for more precise control of movements. This mode may be combined with a pendant or radio remote control.

Usage: Typically found on cranes with complex operations where fine control is needed.

Advantages:

Easier for the operator to make precise adjustments.

Better ergonomics for operators during extended work shifts.

Disadvantages:

Requires training and skill to operate effectively.

May be more expensive compared to simpler control methods.

6. Driverless Control Mode

Description: This mode uses advanced sensors, cameras, and AI to enable the crane to operate without a human operator. The crane can detect obstacles and adjust its path accordingly, and even lift and move materials autonomously.

Usage: Mainly used in highly automated environments like smart factories, automated warehouses, or ports.

Advantages:

No need for human operators on-site.

High level of automation, reduces labor costs, and enhances safety.

Disadvantages:

Very high initial investment for the technology.

Requires a highly advanced infrastructure and robust maintenance system.

7. Dual Control Mode

Description: In this mode, both the cabin operator and an external operator (using pendant or radio control) can control the crane. It allows for more flexible and redundant control, especially in complex or hazardous operations.

Usage: Common in cranes working in hazardous or high-precision environments, such as in the construction of large structures or heavy-duty material handling.

Advantages:

Flexibility in crane operation with redundancy in case of failure.

Increases safety by allowing remote operation when necessary.

Disadvantages:

Can lead to confusion if both operators are not coordinated.

May increase operational costs.

12.Sketch

 

13.Main technical

 

 

1. Efficiency and Precision

Smooth Operation: EOT cranes provide smooth and controlled lifting, which is critical for handling sensitive or heavy materials with precision.

Accurate Positioning: They are equipped with sophisticated controls that allow for accurate movement of loads, ensuring precision in tasks like material placement.

2. Energy Efficiency

Electric Power: EOT cranes are powered by electricity, making them more energy-efficient compared to other types of cranes that may rely on diesel or hydraulic systems.

Regenerative Braking: Many modern EOT cranes come with regenerative braking systems that allow the crane to return energy to the grid or use it for other operations, further reducing energy consumption.

3. High Load Capacity

EOT cranes are designed to handle a wide range of load capacities, from light to heavy lifting, making them versatile for many industrial applications like steel mills, warehouses, and construction sites.

4. Cost-Effective

Lower Operational Costs: Due to their electric operation and minimal maintenance requirements, EOT cranes generally incur lower operational and maintenance costs compared to hydraulic or diesel-powered cranes.

Long Service Life: With proper maintenance, EOT cranes tend to have a long operational lifespan, which contributes to a lower total cost of ownership.

5. Reduced Maintenance

Fewer Moving Parts: Compared to hydraulic systems, electromechanical cranes have fewer complex components, making them easier to maintain.

Lower Wear and Tear: Electric motors typically experience less wear and tear than hydraulic pumps or diesel engines, leading to reduced downtime and maintenance needs.

6. Improved Safety

Automated Features: Modern EOT cranes often come equipped with safety features such as overload protection, anti-collision systems, and limit switches that help prevent accidents and improve worker safety.

Better Control: With the integration of advanced control systems, EOT cranes offer better handling and movement control, reducing the risk of mishaps.

7. Flexibility and Adaptability

Customizable Designs: EOT cranes can be designed with specific features for unique applications. They can be customized in terms of lifting height, span, and load capacity to meet different operational needs.

Multi-Purpose: They are widely used across industries such as construction, shipping, manufacturing, and logistics, handling a broad variety of loads and tasks.

8. Reduced Environmental Impact

Lower Emissions: Being electrically powered, EOT cranes produce fewer emissions compared to fossil fuel-powered cranes, making them more environmentally friendly.

Noise Reduction: Electric cranes generally generate less noise compared to diesel or hydraulic cranes, contributing to a quieter working environment.

9. Space Efficiency

Compact Design: EOT cranes are usually designed to fit within the space constraints of factories, warehouses, or construction sites, and their overhead structure helps in maximizing floor space.

10. Integration with Modern Technology

Automation: EOT cranes can be integrated with automated systems for operations like remote control, load monitoring, and data logging, improving overall system performance and reliability.

Smart Features: With advancements in IoT and AI, EOT cranes can be monitored and optimized for performance in real-time, enhancing productivity and predictive maintenance.

 

 

1. Manufacturing Plants

Material Handling: EOT cranes are used to move raw materials, components, and finished goods between different sections of a manufacturing plant.

Assembly Lines: Cranes assist in positioning heavy parts for assembly in industries like automotive, aerospace, and heavy equipment manufacturing.

2. Steel Mills

Handling Hot Materials: EOT cranes in steel mills are used to move molten metal, scrap metal, and other heavy materials. They are typically designed to operate at high temperatures.

Casting and Shaping: Cranes assist in the movement of metal ingots, billets, or slabs during the casting and shaping processes.

3. Shipbuilding

Heavy Lifting: EOT cranes are essential in shipyards for lifting heavy steel plates, ship parts, and other equipment used in shipbuilding.

Assembly Support: They also help in assembling large sections of ships or boats in dry docks.

4. Warehouses and Distribution Centers

Storage and Retrieval: In large warehouses or distribution centers, EOT cranes are used to move goods from one location to another, facilitating easy access and reducing manual labor.

Stacking Pallets: Cranes can help load and unload pallets from high storage racks, improving the efficiency of operations.

5. Construction Sites

Material Handling: EOT cranes are used in construction to move large construction materials such as concrete, steel beams, and other heavy items from one area to another.

Pre-fabricated Components: Cranes are also used to lift pre-fabricated building components and place them accurately in construction projects.

6. Power Plants

Heavy Equipment Movement: In power plants, EOT cranes help move large components like turbines, generators, and transformers, as well as fuel or ash handling.

Maintenance: They are also used for maintenance purposes, lifting and replacing parts of plant equipment.

7. Ports and Container Terminals

Container Handling: EOT cranes are employed in ports for loading and unloading containers from ships. They are vital in increasing the efficiency of logistics operations.

Cargo Movement: They are also used for moving other types of cargo, including bulk materials or general freight.

8. Mining

Material Handling: In mining operations, these cranes are used to move mined materials, rocks, or ores from one part of the mining process to another.

Equipment Maintenance: EOT cranes are essential in maintaining heavy mining equipment by lifting and replacing large components.

9. Chemical and Pharmaceutical Industries

Handling Hazardous Materials: In industries that deal with hazardous materials, EOT cranes are used to safely move and handle containers, drums, and vats containing chemicals or other sensitive products.

Production Lines: These cranes assist in moving materials along production lines, such as in the manufacturing of pharmaceutical products.

10. Aerospace

Component Handling: EOT cranes are used to move large aerospace components, such as aircraft wings, fuselage sections, or engines, within assembly and maintenance facilities.

Precision Handling: These cranes are equipped with features to handle delicate and precision parts without damaging them.

 

 

1. Design and Engineering

Preliminary Design: Based on customer requirements (lifting capacity, span, lifting height, working environment), the crane design is finalized by engineers. This includes structural design, mechanical system, and electrical system specifications.

CAD Modeling: The crane components are modeled using Computer-Aided Design (CAD) software to optimize structure, ease of assembly, and maintenance.

Safety Standards: Design is aligned with international standards like IS, DIN, or IEC, ensuring the crane meets safety regulations.

2. Material Procurement

Raw Material: Steel plates, beams, angles, and other structural components are sourced. These materials undergo testing to ensure quality and compliance with standards.

Electrical Components: Motors, control panels, electrical cables, and other parts are sourced from suppliers.

3. Fabrication of Components

Structural Fabrication: Steel plates and beams are cut, shaped, welded, and assembled to form the crane's main structural components like the bridge, end trucks, and hoist trolley.

Cutting and Welding: Components are cut using CNC machines and welded using automated or manual welding processes. High-strength welding is essential for load-bearing components.

Drilling and Assembly: Holes for bolts, pins, and other fasteners are drilled. Afterward, the components are assembled into sub-assemblies like the bridge, trolley, and hoist.

4. Mechanical Assembly

Bridge Assembly: The crane bridge, which spans across the work area, is assembled by joining beams and structural members. Wheels and wheel frames are also attached to the bridge.

Trolley Assembly: The hoist trolley, which moves along the crane's bridge, is assembled. This includes attaching the motor, reducer, and hoist mechanism.

Hoist Assembly: The hoist, which includes the drum, rope, motor, and gearbox, is assembled. It's important to ensure smooth operation for precise load lifting.

5. Electrical Installation

Motor Installation: Electric motors for the hoist, bridge, and trolley drives are mounted.

Control Panel and Wiring: The crane's control panel, including the electrical circuits, is installed. Wiring for power, control, and safety systems is completed, connecting motors, sensors, and other components.

Sensors and Safety Features: Safety devices such as load limiters, anti-collision devices, and over-voltage protection are installed to ensure safe operation.

6. Control System Programming

PLC Integration: The crane is controlled using a Programmable Logic Controller (PLC) system. This involves programming the PLC to handle the movement of the hoist, bridge, and trolley, and to integrate safety features like load weight monitoring and emergency stop.

Remote Control: If required, a radio remote control system or pendant control is integrated.

Testing and Calibration: The control system is tested to ensure all movements (lifting, lowering, traveling) are responsive and accurate.

7. Assembly and Integration

Full Assembly: After all major components (structure, electrical, and mechanical) are fabricated and prepared, the crane is fully assembled in the factory.

Final Adjustments: The crane is fine-tuned for smooth operation. This includes adjusting the wheel alignment, ensuring smooth hoisting, and checking the overall functionality.

8. Testing

Pre-Delivery Testing: The crane undergoes rigorous testing to ensure it meets all design specifications and safety standards.

Load Testing: The crane is tested with a load equal to its rated capacity to ensure safe lifting and stability.

Functional Testing: All movements (hoist, trolley, bridge travel) are tested for smoothness and precision.

Electrical Testing: The electrical systems are tested for proper voltage, current, and safety.

Control System Testing: The control system is tested to ensure it operates as expected, including emergency stop and safety alarms.

9. Quality Control

Throughout the production process, various quality control checks are performed, such as material testing, weld inspection, dimensional accuracy, and electrical system testing.

Final inspection is done to ensure the crane is ready for dispatch. This includes checking the integrity of all safety systems and functionality.

10. Packing and Dispatch

After successful testing and inspection, the crane is disassembled into transportable components (if necessary) and packed for delivery.

The crane is then shipped to the customer's site.

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%.