Monorail Bridge Crane

 

Monorail Bridge Crane Product Introduction;A monorail bridge crane is an advanced lifting and material-handling solution designed to meet the needs of industries requiring efficient and precise movement of heavy loads. Operating on a single, fixed rail, this crane is an ideal choice for linear transport within production lines, warehouses, and other industrial environments.

A monorail bridge crane is The monorail bridge crane features a streamlined design and robust construction, making it a reliable tool for industries with high demands for productivity and safety. It is equipped with a trolley that travels along a single overhead rail, providing efficient and controlled horizontal and vertical movement of loads.

Key Features;Compact Design:Ideal for limited space environments with low ceilings.Maximizes usable space without compromising performance.High Load Capacity:Can handle loads ranging from 0.5 tons to 20+ tons, depending on the configuration

Smooth Operation:Incorporates advanced motors and trolleys for precise, smooth, and noise-free operation.Durable Construction:Made with high-strength materials, ensuring long-term durability even in harsh conditions.

Customizable Options:Can be tailored with specific sizes, lifting heights, and operational speeds to fit unique requirements.Ease of Maintenance:Designed for minimal downtime and low maintenance costs.

Core Components Motor

Place of Origin China

Warranty 2 years

Weight (KG) 10000 kg

Power supply Local Industry Voltage

Working temperature Usual -25 -40

Painting Color Customized Color

Control model Wireless Remote Control.cabin Control

Certification CE BV ISO

 

 

Main beam

The main beam of a monorail bridge crane is one of the most critical components, responsible for supporting and transferring the load efficiently along the monorail track. It serves as the horizontal structure on which the hoist and trolley travel, ensuring smooth and safe material handling.

Key Features of the Main Beam;Robust Construction;Typically made from high-strength steel or alloy materials to ensure durability and the ability to bear heavy loads.Designed to resist bending, twisting, or deformation under stress.Lightweight and Efficient Design;Engineered to balance strength and weight for optimal performance.Reduces the overall weight of the crane system without compromising load capacity.

Customizable Dimensions;Available in different lengths, widths, and profiles (e.g., I-beam, box girder, or truss) to fit various industrial requirements.Can be designed to accommodate specific span lengths and load capacities.Precise Fabrication;Manufactured using advanced techniques to ensure accuracy in dimensions and alignment, critical for safe crane operation.

Corrosion Resistance;Often coated with anti-corrosion paint or galvanized to withstand harsh environmental conditions, especially in outdoor or high-humidity applications.

Lifting System

Key Components of the Lifting System;Electric Hoist;A compact and powerful hoist is the core component of the lifting system.It includes a motor, drum, rope or chain, and a braking mechanism.Available in wire rope hoists for heavier loads or chain hoists for lighter applications.

Lifting Motor;High-performance motors provide smooth and efficient lifting and lowering operations.Equipped with variable speed controls for precise load handling.Built to handle continuous duty cycles with minimal heat generation.

Wire Rope or Chain;Durable and wear-resistant lifting medium used to connect the hoist to the load.Wire rope is ideal for heavy-duty operations, while chains are suitable for lighter loads.

Load Hook;Forged steel hooks with swiveling capability for secure and flexible load handling.Includes safety latches to prevent accidental unhooking.

Overload Protection;Integrated safety mechanisms to prevent lifting beyond the system's capacity, ensuring safe operations.Control System;The lifting system is operated using a pendant control, radio remote control, or a fully automated system.Provides precise control over lifting speed, positioning, and braking.

End carriage

1) Key Features of the End CarriageRobust Construction;Manufactured from high-strength materials such as steel, the end carriage provides durability and resistance to wear and tear.Designed to handle the stress of continuous operations and heavy loads.

2) Precision Wheel Assemblies;Equipped with high-quality wheels (steel or polyurethane) for smooth and reliable travel along the runway.Wheels are designed to minimize noise, wear, and friction.Compact Design;Lightweight yet strong, the end carriage is engineered for easy installation and efficient operation in tight spaces.

3 )Integrated Drive System;Contains motors and gearboxes that power the movement of the crane along the tracks.Motors often feature variable speed options for precise positioning and smooth acceleration or deceleration.

Alignment Mechanisms;Designed to ensure perfect alignment of the main beam with the runway tracks, reducing wear and operational issues.Functions of the End Carriage Support;Provides stable support for the crane's main beam and load during operation.

Movement;Enables the horizontal travel of the crane along the runway tracks, ensuring smooth and efficient positioning.Load Distribution;Evenly distributes the weight of the crane and load across the tracks to prevent structural stress and ensure system longevity.

 

 

 

Crane travelling mechanism

Key Features of the End Carriage;Robust Construction Manufactured from high-strength materials such as steel, the end carriage provides durability and resistance to wear and tear.Designed to handle the stress of continuous operations and heavy loads

Equipped with high-quality wheels (steel or polyurethane) for smooth and reliable travel along the runway.Wheels are designed to minimize noise, wear, and friction.Compact Design;Lightweight yet strong, the end carriage is engineered for easy installation and efficient operation in tight spaces.

Integrated Drive System;Contains motors and gearboxes that power the movement of the crane along the tracks.Motors often feature variable speed options for precise positioning and smooth acceleration or deceleration.

Anti-Collision Features;Includes bumpers, end stops, and limit switches to prevent collisions and ensure safe operation.Alignment Mechanisms;Designed to ensure perfect alignment of the main beam with the runway tracks, reducing wear and operational issues.

 

 

5.Trolley travelling mechanism

1) Key Components of the Trolley Travelling Mechanism Trolley Frame;A rigid and durable frame that supports the hoist and other components of the mechanism.Typically constructed from high-strength steel or alloy materials.

2) High-quality wheels (steel or polyurethane) mounted on the trolley for smooth movement along the main beam.Precision-machined to reduce friction and ensure stable travel.

3) Drive Motor;An electric motor powers the trolley's movement.Often features variable speed drives (VFD) for smooth acceleration and deceleration.Gearbox;Transfers power from the motor to the wheels while providing torque for effective movement.Ensures controlled and consistent trolley motion.

4) Guide Rollers;Installed to keep the trolley aligned with the main beam, reducing lateral movement and wear.Control System;Operated via a pendant, remote control, or automated system to control the trolley's direction and speed.

5) Working Principle,Drive Activation: The motor powers the gearbox, which drives the trolley wheels along the main beam.Controlled Movement: The operator controls the speed and direction of the trolley via the control system.

Load Alignment: The guide rollers ensure that the trolley remains aligned with the main beam during operation.

Safety: The limit switches and braking system ensure safe and precise stopping.

 

6.Crane wheel

1) Operation principle

Track rolling: When the crane moves, the motor drives the wheel to rotate, and the wheel rolls on the track, thereby realizing the lateral movement of the crane.

Load distribution: The design of the wheel group is usually a multi-wheel structure, which can effectively disperse the total load of the crane, reduce the pressure on the track, and extend the service life of the track and wheels.

Guidance function: The design of the wheel should also take into account the guidance function to ensure that the crane remains in the center of the track when moving to prevent derailment or tilting.

2) Maintenance and care

Regular inspection: The wear of the wheel needs to be checked regularly to ensure good contact between the wheel and the track to prevent accidents caused by excessive wear.

Lubrication: The bearings of the wheel need to be lubricated regularly to reduce friction, improve operating efficiency, and extend service life.

Cleaning: The part where the wheel contacts the track needs to be kept clean to prevent friction damage or wear caused by debris.

7.Crane Hook

1) The crane hook is one of the most critical components of a monorail bridge crane, responsible for attaching and securely holding the load during lifting operations. It is designed to ensure safety, reliability, and versatility while handling a variety of materials and weights.Key Features of a Crane Hook

2) High-Strength Material;Made from forged carbon steel or alloy steel to withstand heavy loads and resist deformation.

Heat-treated for additional strength and durability.Swiveling Mechanism;Many crane hooks feature a swiveling design to allow the load to rotate freely without twisting the lifting medium (wire rope or chain).Reduces stress on the crane components and ensures stability.

Safety Latch;Equipped with a safety latch to prevent the load from slipping or detaching unexpectedly.Enhances operational safety, especially during dynamic movements.Load Capacity Markings;Clearly marked with the maximum weight capacity to ensure safe usage within rated limits.

Ergonomic Design;Designed with a wide throat opening to accommodate different lifting devices such as slings, shackles, or ropes.

Motor

Key Functions of the Motor in a Monorail Bridge Crane Hoisting;Powers the lifting mechanism to raise and lower loads safely.Trolley Movement;Drives the trolley travelling mechanism, enabling the horizontal movement of the hoist along the crane's main beam.

Operates the end carriage to move the crane along the runway tracks for positioning over the work area.Precision Control;Provides smooth starts, stops, and speed adjustments for precise material handling.Types of Motors Used in Monorail Bridge Cranes Squirrel Cage Induction Motor Most commonly used motor due to its robustness, reliability, and low maintenance

Slip Ring Motor;Ideal for applications requiring high starting torque, such as lifting heavy loads.Servo Motor;Used in systems requiring precise motion control and high efficiency.

Brake Motor;Features an integrated brake system that holds the load securely when the motor is not in operation.Variable Frequency Drive (VFD) Motor;Provides variable speed control, allowing for smooth acceleration, deceleration, and energy efficiency.;Features of a Crane Motor

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Sound and light alarm system & limit switch

Key Features;Audio Alerts;Loud sirens or beeping sounds warn operators and nearby workers of the crane's movements.Adjustable volume settings to suit different work environments.Visual Alerts;Bright flashing lights (LED or strobe) signal the crane's operation.Available in various colors, such as red, yellow, or blue, for clear visibility.

Automatic Activation;Integrated with the crane's control system to activate automatically during operations like hoisting, trolley travel, or crane movement.Durable Design;Made from robust materials to withstand harsh industrial environments such as dust, moisture, and extreme temperatures.

Benefits;Increased Safety: Prevents accidents by alerting workers to the crane's activity.Compliance: Meets safety regulations and industry standards.Improved Awareness: Enhances situational awareness for operators and personnel in busy or noisy workplaces.

10.Safety Devices

1) Overload Protection Device;Function: Prevents the crane from lifting loads beyond its rated capacity.How It Works: A load cell or strain gauge measures the load weight. If the load exceeds the limit, the system stops the hoisting mechanism and triggers an alarm.

2) Limit Switches;Function: Stops the crane or its components when they reach predefined travel or lifting limits.Types:Hoist Limit Switch: Prevents the hook from over-hoisting or over-lowering.Trolley/Bridge Travel Limit Switch: Stops the movement of the trolley or bridge at their endpoints.

3)Anti-Collision Device Function: Prevents collisions between multiple cranes operating on the same runway or between the crane and other obstacles.How It Works: Uses sensors (e.g., infrared or ultrasonic) to detect objects or other cranes in the vicinity and automatically slows or stops the crane.

4)Emergency Stop System;Function: Allows the operator or system to immediately stop all crane operations in case of an emergency.Design:Emergency stop buttons are placed on the control panel, pendant, or remote control.

Benefits:Prevents accidents or damage in unexpected situations.Quickly responds to safety hazards.

11.Control Mode

1)Manual Control Description: The operator controls the crane manually via a pendant control or push-button station that is typically attached to the crane.

Features:Direct connection to the crane.Simple and cost-effective for small-scale or less complex operations.Requires the operator to move along with the crane.Applications: Small to medium capacity cranes, light-duty work environments.

2)Wireless Remote Control Description: Operated via a wireless remote control device, allowing the operator to stand at a safe distance.Features:Enhanced operator safety by enabling operation from a distance.

3)Cabin Control;Description: A cabin is installed on the crane where the operator sits and controls the crane using levers or joysticks.Features:Suitable for heavy-duty operations or environments where precise control is needed.Provides excellent visibility of the operation area.Often combined with air-conditioning or heating for operator comfort in extreme environments.Applications: High-capacity cranes, heavy industrial applications such as shipyards or steel mills.

4)Automatic or Semi-Automatic Control Description: The crane operates based on pre-programmed instructions or minimal operator intervention.Features:Utilizes PLC (Programmable Logic Controllers) or CNC systems for automation.Increases operational efficiency by reducing human error.Suitable for repetitive or precision tasks.Applications: Factories with automated production lines, logistics warehouses, or environments requiring high throughput.

12.Sketch

 

 

Main technical

 

 

1. Space Efficiency

Semi-gantry cranes utilize the available space efficiently as one side runs on an elevated runway and the other on the floor. This design is particularly suitable for facilities with limited headroom or irregular layouts.

2. Cost-Effectiveness

They are typically more affordable than full gantry cranes because they require less structural support (e.g., one rail instead of two). This reduces installation and material costs.

3. Versatility

These cranes are suitable for indoor and outdoor use, making them versatile for different industries. They can handle a variety of tasks, such as material handling, assembly, and loading operations.

4.Flexibility in Installation

A semi-gantry crane can be easily installed in existing facilities without major modifications. This adaptability makes it an ideal choice for upgrading operations without significant downtime.

5.Improved Load Handling

With one side supported by a ground rail and the other by an elevated rail, the design ensures stable load handling and minimizes swaying during operation.

6.Reduced Floor Obstruction

Since only one side of the crane uses ground space, there's less obstruction on the factory floor. This facilitates easier movement of equipment and materials.

 

 

Applications of Semi-Gantry Cranes

Manufacturing Facilities

Used for handling raw materials, moving heavy components, and assembling products in industries like machinery, automotive, and electronics manufacturing.

Warehousing and Logistics

2 ) Ideal for loading and unloading heavy goods in warehouses, especially where space constraints prevent the use of full gantry cranes or overhead cranes.

Construction Sites

Applied in lifting and placing construction materials, particularly in indoor or partially covered work areas.

Shipbuilding and Dockyards

Assist in lifting and assembling ship components, as well as transferring materials from one part of the yard to another.

Steel Plants

Used for handling large steel plates, rolls, or other heavy steel products within fabrication areas or storage yards.

Railway Yards and Maintenance Depots Suitable for handling heavy equipment or components like train parts and rail tracks.

Automotive Industry

Employed in car assembly plants for moving engines, chassis, or other heavy parts across production lines.Aerospace Industry Handles large, delicate components like airplane parts during assembly or maintenance.

 

 

1. Design stage: Determine the parameters of the crane, such as rated load, span and lifting height, according to the customer's needs and working environment. Carry out detailed structural design, including main beam, end beam, crane, lifting mechanism, etc., to ensure that the design meets safety standards and usage requirements. Select appropriate materials according to the design, usually high-strength steel to ensure the stability and durability of the structure.

2. Manufacturing stage: Prepare the required raw materials and parts according to the design drawings. Cut, bend and shape the steel to prepare structural components such as main beams and end beams. Weld the various components and assemble them into an overall structure. This step requires guaranteed welding quality to ensure strength and stability.

3. Machining: Machining key components such as motors, gears, bearings, etc. to ensure that their size and accuracy meet the requirements. Anti-corrosion treatment of components, such as painting and galvanizing, increases the durability and aesthetics of the equipment.

4. Electrical system installation: Install electrical components such as motors, controllers, switches, sensors and alarm systems. Connect and wire cables to ensure the normal operation of the electrical system.

5. Assembly phase: Assemble all components and systems as a whole, connect the lifting mechanism, trolley running mechanism and control system. Perform a comprehensive inspection of the assembled crane to ensure that all components and systems are working properly, and perform preliminary debugging.

6. Testing phase: Perform static load test on the crane to check the structural strength and stability. Perform dynamic test on the crane, including tests on lifting, moving, braking and other functions, to ensure that its performance meets the design requirements. Check the functions of safety devices, such as limit switches, overload protection, etc., to ensure the safety of the equipment during operation.

7. Quality control: Perform quality control on each link in the production process to ensure compliance with industry standards and customer requirements. Record various data and inspection results in the production process for subsequent traceability and analysis.

8. Delivery and installation: Pack and prepare the completed crane for transportation to ensure that it is not damaged during transportation. Deliver the crane to the customer's site for installation, and perform on-site debugging and acceptance. Provide operation training to customers to ensure that they are proficient in the use and maintenance of the crane.

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%.