18T Single Girder Bridge Crane
Products Description
An 18T Single Girder Bridge Crane is an electric overhead lifting crane designed for handling loads up to 18 tons in workshops, warehouses, manufacturing plants, maintenance facilities, and other industrial environments. The crane uses a single main girder supported by two end trucks, with an electric wire-rope hoist traveling along the girder. This configuration provides an efficient balance between lifting capacity, structural weight, installation space, and operating cost.
Key Features
Rated lifting capacity: 18 tons
Single-girder structure for a relatively lightweight and economical crane design
Electric wire-rope hoist for reliable lifting operations
Three-directional movement: lifting/lowering, trolley travel, and crane travel
Compact structure with efficient use of workshop space
Pendant control or wireless remote control available
Overload protection and travel limit protection for safer operation
Suitable for customized span, lifting height, speed, and working duty
Can be designed for different industrial working environments and operating requirements.
Pictures & Components
1. Main Girder
Main Girder
The primary load-bearing structure of the crane.
Supports the electric hoist and trolley and transfers the lifting load to the end carriages.
End Carriages
Installed at both ends of the main girder.
Equipped with traveling wheels and drive mechanisms to move the crane along the runway rails.
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Electric Wire Rope Hoist
Provides lifting and lowering functions.
Generally includes a lifting motor, gearbox, rope drum, wire rope, hook block, brake, and limit switch.
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Crane Traveling Mechanism
Consists of traveling motors, gearboxes, drive wheels, shafts, and related components.
Moves the entire crane along the workshop runway.
Hoist Trolley
Carries the electric hoist and travels horizontally along the main girder.
Enables accurate positioning of loads across the crane span.
Crane Traveling Mechanism
Consists of traveling motors, gearboxes, drive wheels, shafts, and related components.
Moves the entire crane along the workshop runway.
Hook Block
Used to connect the crane with lifting slings or other lifting accessories.
Designed according to the rated lifting capacity.
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Electrical Control System
Includes the control panel, contactors, relays, switches, cables, and other electrical components.
Controls lifting, trolley travel, and crane travel operations.
Control Device
Can be equipped with a pendant push-button control, wireless radio remote control, or operator cabin, depending on the project requirements.
These components work together to ensure that the 20T single girder overhead crane with remote control operates safely, efficiently, and reliably in various industrial applications.
Sketch
Safety Protection Devices
Include overload limiter, upper/lower lifting limit switches, travel limit switches, emergency stop, buffers, and other safety devices.
Runway Wheels and Rails
The crane traveling wheels run on the workshop runway rails.
The runway system provides the supporting path for longitudinal crane movement.
Main technical
Advantages
1. Cost-Effective
Compared with a double-girder crane of similar capacity, a single-girder design generally requires less structural steel and can reduce equipment and installation costs.
2. Space Saving
The compact bridge structure is suitable for workshops where building space and headroom are limited.
3. Efficient Material Handling
The crane can move heavy loads longitudinally and transversely throughout the working area, improving material-handling efficiency.
4. Easy Maintenance
The relatively simple mechanical structure makes inspection, maintenance, and replacement of components convenient.
5. Flexible Configuration
The 18T crane can be customized according to span, lifting height, working class, lifting speed, control method, and site conditions.
Application
The 18T Single Girder Bridge Crane is widely used for lifting, moving, loading, and positioning heavy materials and equipment in industrial facilities. Typical applications include:
Manufacturing Workshops – Handling machinery, steel components, molds, and production materials.
Machinery Manufacturing – Lifting and positioning large machine parts during assembly and maintenance.
Steel Fabrication Plants – Moving steel plates, beams, pipes, and fabricated structures.
Warehouses – Loading, unloading, stacking, and transferring heavy goods.
Equipment Assembly Workshops – Positioning engines, mechanical equipment, and industrial components.
Maintenance Facilities – Lifting heavy machinery and components for inspection, repair, and replacement.
Automotive Industry – Handling vehicle components, dies, engines, and production equipment.
Construction Material Handling – Moving concrete products, structural steel, and other heavy materials.
Power and Industrial Plants – Handling pumps, motors, generators, and other heavy equipment.
Loading and Unloading Areas – Efficient transfer of heavy materials between vehicles, storage areas, and production lines.
The crane is especially suitable for indoor workshops and warehouses requiring reliable lifting of loads up to 18 tons.
Crane Production Procedure
The production of an 18T Single Girder Bridge Crane follows a systematic process to ensure structural strength, reliable operation, and safe lifting performance.
Technical Design & Engineering
Confirm lifting capacity, span, lifting height, working class, speeds, and control method.
Prepare detailed drawings and calculate the main girder, end carriages, hoist, wheels, and drive mechanisms.
Raw Material Inspection
Select qualified structural steel plates, profiles, and mechanical components.
Inspect material specifications, dimensions, and certificates before fabrication.
Main Girder Fabrication
Cut and prepare steel plates according to the engineering drawings.
Assemble and weld the main girder using controlled welding procedures.
Perform straightening and dimensional inspection to ensure proper geometry.
End Carriage Manufacturing
Fabricate the end carriages and install traveling wheels, shafts, bearings, and drive units.
Check wheel alignment and dimensional accuracy.
Hoist & Trolley Assembly
Assemble the electric wire-rope hoist, lifting motor, gearbox, rope drum, wire rope, hook block, brake, and limit switches.
Install the hoist trolley and verify its movement along the main girder.
Mechanical Assembly
Connect the main girder with the end carriages.
Install the crane travel motors, reducers, wheels, buffers, and other mechanical components.
Electrical Installation
Install the electrical control panel, power supply system, cables, control devices, and limit switches.
Connect pendant control or wireless remote control according to the specified configuration.
Install overload protection and other safety devices.
Surface Treatment & Painting
Clean and shot-blast the steel structure.
Apply primer and finishing coats to provide corrosion protection and a durable surface.
Factory Inspection & Testing
Conduct dimensional and visual inspections.
Perform no-load testing of lifting, trolley travel, and crane travel.
Carry out rated-load testing and check braking, limit switches, overload protection, and operating controls.
Final Assembly & Delivery
Complete final quality inspection and prepare technical documents and inspection records.
Dismantle and pack the crane components appropriately for transportation.
Deliver the complete crane to the installation site for erection and commissioning.
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%.
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