180T Beam Launcher Machine For Erecting Concrete Girders
A 180T Beam Launcher Machine is a specialized heavy-duty construction machine designed for erecting precast concrete girders and bridge beams in highway, railway, metro, and viaduct construction projects. It is engineered to safely lift, transport, position, and install concrete girders weighing up to 180 tons with high precision and efficiency.
This equipment is widely used in large-scale infrastructure projects where conventional cranes are difficult to operate due to limited ground access, high elevations, or long-span bridge structures.

Features of Modern 180T Beam Launchers
PLC intelligent control system
Frequency conversion speed control
Synchronous lifting technology
Remote monitoring capability
Modular assembly structure
Wind-resistant design
Automatic correction system
Key Design Parameters & Performance Specifications
| Parameter | Specification |
|---|---|
| Lifting Capacity (per girder) | 180 Metric Tons |
| Maximum Span (Pier to Pier) | 50 meters (Typical), customizable up to 60m |
| Minimum Curve Radius | 2,000 meters (can be designed for tighter radii) |
| Maximum Supported Grade | ±4% |
| Lifting Hoists | 2 x Main Hoists (typically 120-ton capacity each) |
| Hoist Lifting Speed | 0-5 m/min (variable speed control) |
| Trolley Traversing Speed | 0-10 m/min (variable speed control) |
| Main Beam Launching Speed | 0-5 m/min (variable speed control) |
| Machine Self-Propelling Speed | 0-5 m/min (variable speed control) |
| Control System | Centralized PLC with frequency control for all motions. Remote control operation. |
| Power Supply | 380V / 50Hz / 3 Phase (or as per project requirement) |

Pictures & Components
1. Main Girder (Launching Girder)
The main girder is the primary load-bearing structure of the beam launcher.
Functions
Supports the lifting mechanism and traveling system
Transfers lifting loads to support legs
Maintains structural stability during girder erection
Features
Fabricated from high-strength steel
Box-type or truss-type structure
Designed for heavy-load and long-span operation
2. Front Support Leg
Located at the front end of the launcher and positioned on the bridge pier.
Functions
Supports the front section of the launcher
Maintains balance during beam placement
Assists forward launching movement
Features
Hydraulic height adjustment
Stable pier connection system
High load-bearing capacity
3. Rear Support Leg
Installed at the rear section of the launcher.
Functions
Supports the rear part of the machine
Balances the launcher during girder transportation
Ensures safe longitudinal movement
Features
Adjustable support mechanism
Reinforced steel structure
Hydraulic stabilization system
4. Middle Support Leg (Optional)
Used in long-span or special bridge erection projects.
Functions
Provides additional structural support
Reduces deflection of the main girder
Improves operational stability
5. Lifting Trolley
The lifting trolley travels along the main girder and performs girder lifting operations.
Functions
Lifts concrete girders
Moves beams longitudinally
Enables precise beam positioning
Components
Electric winch
Pulley block
Wire rope
Motor reducer
Traveling wheels
6. Traveling Mechanism
Allows the launcher to move forward from one span to the next.
Functions
Longitudinal movement of the machine
Span-to-span launching operation
Precise positioning on bridge piers
Components
Drive motors
Gear reducers
Wheel assemblies
Rail clamping devices
7. Hydraulic System
Provides power for lifting, steering, support adjustment, and synchronization.
Functions
Operates hydraulic cylinders
Controls support leg movement
Maintains synchronized lifting
Components
Hydraulic pumps
Hydraulic cylinders
Oil tanks
Valves and pipelines
Advantages
Smooth operation
High control precision
Strong overload protection
8. Electrical Control System
Acts as the control center of the beam launcher machine.
Functions
Controls lifting and traveling motions
Monitors equipment status
Ensures safe coordinated operation
Components
PLC control cabinet
Frequency inverter
Sensors
Limit switches
Operator console
Features
Automated synchronization
Fault diagnosis system
Remote control capability
9. Beam Carrying Device
Used to transport precast girders during erection.
Functions
Transfers girders into lifting position
Supports beam movement during installation
Features
Heavy-duty transport frame
Stable load distribution
Anti-slip design
10. Winch System
Provides lifting and pulling force during operation.
Functions
Raises and lowers girders
Assists trolley movement
Maintains lifting stability
Components
Drum
Wire rope
Brake system
Motor drive
11. Rail System
Guides the movement of the launcher and trolley.
Functions
Ensures smooth travel
Maintains accurate alignment
Features
High-strength steel rails
Wear-resistant surface
Precision installation
12. Safety Protection System
Protects operators, equipment, and girders during operation.
Functions
Prevents overload and collision
Ensures emergency shutdown capability
Monitors operational safety
Safety Devices
Overload limiter
Wind speed alarm
Emergency stop switch
Anti-collision sensor
Travel limit switch
Auxiliary Components
Power Supply System
Provides electrical energy for all machine operations.
Maintenance Platform
Allows safe inspection and maintenance work.
Operator Cabin
Provides centralized operation and monitoring.
Lighting System
Ensures safe night-time construction operations.
Communication System
Coordinates lifting and installation activities among operators.

Sketch


Advantages
Advantages of 180T Beam Launcher Machine for Erecting Concrete Girders
A 180T beam launcher machine offers significant advantages in modern bridge construction projects, especially for highways, railways, metro viaducts, and large-span infrastructure works.
1. High Lifting Capacity
The machine is specifically engineered to lift and erect heavy precast concrete girders up to 180 tons safely and efficiently.
Benefits
Suitable for large bridge segments
Handles heavy box girders and T-girders
Supports long-span bridge construction
2. High Construction Efficiency
Beam launchers can complete girder erection much faster than conventional crane methods.
Benefits
Rapid span-to-span operation
Reduced bridge construction time
Continuous erection workflow
Lower labor requirements
Result
Improves overall project productivity and accelerates project completion.
3. Excellent Stability and Safety
The launcher operates directly on bridge piers with a balanced structural design.
Benefits
Stable lifting performance
Reduced risk of beam swinging
Accurate girder positioning
Reliable heavy-load operation
Safety Features
Overload protection
Emergency stop systems
Wind monitoring devices
Anti-collision systems
4. Suitable for Difficult Construction Environments
The beam launcher is ideal for locations where ground cranes cannot operate efficiently.
Applicable Areas
Mountainous regions
River crossings
Deep valleys
Urban viaducts
Narrow construction sites
Benefits
Minimal ground occupation
Reduced dependency on terrain conditions
Improved accessibility for remote projects
5. Reduced Dependence on Large Cranes
Traditional bridge erection often requires multiple heavy crawler cranes.
Advantages of Beam Launcher
Eliminates need for oversized ground cranes
Reduces equipment rental costs
Lowers transportation and setup expenses
Minimizes site congestion
6. Precise Beam Positioning
Advanced hydraulic and PLC control systems provide accurate girder alignment.
Benefits
High installation precision
Reduced adjustment time
Better bridge assembly quality
Improved construction accuracy
7. Strong Adaptability
The machine can be customized for different bridge types and project requirements.
Compatible Girder Types
Box girders
T-girders
U-girders
Segmental beams
Adaptable Features
Adjustable span length
Variable lifting height
Different track gauges
Customized support systems
8. Continuous Span Launching Capability
The launcher can move forward directly after completing one bridge span.
Benefits
Continuous erection process
Reduced relocation time
Higher operational efficiency
Faster multi-span bridge construction
9. Lower Overall Construction Cost
Although the initial investment is high, long-term operational efficiency reduces total project cost.
Cost Reduction Factors
Faster project completion
Reduced manpower
Lower crane rental expenses
Reduced temporary support structures
Less ground preparation work
10. Enhanced Automation and Intelligent Control
Modern 180T beam launchers use advanced automation systems.
Intelligent Features
PLC automatic control
Synchronous lifting technology
Real-time monitoring
Fault diagnosis system
Remote operation capability
Benefits
Improved operational reliability
Reduced human error
Easier equipment management
11. Modular Design for Easy Transportation
The machine is usually manufactured in modular sections.
Benefits
Easier transportation to project sites
Faster assembly and disassembly
Convenient maintenance
Lower logistics cost
12. Environmentally Friendly Construction
Beam launchers minimize disturbance to the surrounding environment.
Environmental Advantages
Reduced ground damage
Lower noise compared with large cranes
Less temporary road construction
Reduced impact on rivers and vegetation

Application
Applications of 180T Beam Launcher Machine for Erecting Concrete Girders
The 180T Beam Launcher Machine is widely used in modern bridge construction projects for safely and efficiently erecting heavy precast concrete girders. It is especially suitable for projects requiring high lifting capacity, precision installation, and continuous span erection.
1. Highway Bridge Construction
Beam launchers are extensively used in expressway and highway bridge projects.
Applications
Highway overpasses
Elevated road bridges
Interchange bridges
Multi-span concrete viaducts
Advantages
Fast girder installation
Reduced traffic interruption
High erection efficiency
Suitable for long bridge spans
2. High-Speed Railway Bridge Projects
The machine is ideal for high-speed railway infrastructure where precision and stability are critical.
Applications
High-speed railway viaducts
Railway overpasses
Long railway bridges
Double-track bridge erection
Benefits
Accurate beam alignment
Stable heavy-load lifting
Continuous launching operation
Improved construction safety
3. Metro and Urban Viaduct Construction
Widely used in urban transportation projects where space is limited.
Applications
Metro elevated lines
Urban rail transit systems
City viaduct bridges
Elevated expressways
Advantages
Minimal ground occupation
Suitable for crowded urban areas
Reduced disruption to city traffic
Efficient span-to-span erection
4. Long-Span Concrete Bridge Construction
The 180T launcher can handle large and heavy girders used in long-span bridges.
Applications
Box girder bridges
Continuous beam bridges
Large-span viaducts
Prestressed concrete bridge erection
Benefits
High load-bearing capability
Stable lifting performance
Accurate girder placement
5. Mountainous Area Bridge Projects
The launcher is highly suitable for difficult terrain where cranes cannot easily access.
Applications
Valley bridges
Mountain highway bridges
Cliff-side bridge construction
Remote infrastructure projects
Advantages
Reduced dependence on ground cranes
Adaptable to uneven terrain
Safe operation at high elevations
6. River and Sea Crossing Bridges
Beam launchers are often used for bridges over rivers, lakes, and coastal areas.
Applications
River crossing bridges
Coastal viaducts
Waterway infrastructure
Marine bridge construction
Benefits
Reduced need for floating cranes
Improved safety over water
Faster erection operations
7. Precast Segmental Bridge Construction
The machine supports modern precast segmental bridge assembly techniques.
Applications
Segmental box girder bridges
Prefabricated bridge systems
Industrialized bridge construction
Advantages
High assembly precision
Faster project completion
Improved construction quality
8. Infrastructure Megaprojects
Large infrastructure developments frequently require heavy-duty launching equipment.
Applications
National highway systems
Railway corridor projects
Airport elevated roads
Smart city transportation networks
Benefits
Supports large-scale continuous construction
Improves project efficiency
Reduces overall construction time

Production Procedure
Production Procedure of 180T Beam Launcher Machine for Erecting Concrete Girders
The production of a 180T Beam Launcher Machine involves precision engineering, heavy steel fabrication, mechanical assembly, hydraulic integration, and strict quality inspection processes to ensure safety, stability, and long service life.
1. Engineering Design and Technical Planning
Before manufacturing begins, the engineering team develops the complete technical design according to project requirements.
Main Tasks
Structural load calculation
Finite Element Analysis (FEA)
3D modeling and assembly simulation
Lifting capacity verification
Stability and safety analysis
Hydraulic and electrical system design
Design Considerations
Rated lifting capacity: 180T
Bridge span requirements
Beam type compatibility
Wind resistance
Operating environment
2. Raw Material Procurement and Inspection
High-quality raw materials and components are selected to ensure durability and reliability.
Main Materials
High-strength steel plates
Structural steel sections
Hydraulic cylinders
Electric motors
Gear reducers
Wire ropes
PLC control systems
Inspection Procedures
Material certificate verification
Chemical composition testing
Mechanical property testing
Surface defect inspection
3. CNC Steel Plate Cutting
Steel plates are cut according to engineering drawings using precision cutting equipment.
Cutting Methods
CNC flame cutting
Plasma cutting
Laser cutting (for precision parts)
Quality Control
Dimensional accuracy inspection
Edge quality checking
Identification marking
4. Structural Fabrication and Assembly
Major structural components are fabricated and assembled.
Fabricated Components
Main girder
Front support leg
Rear support leg
Trolley frame
Support brackets
Maintenance platforms
Fabrication Processes
Plate bending
Structural alignment
Fit-up assembly
Temporary positioning
5. Welding Process
Welding quality is critical for the safety of the beam launcher.
Welding Methods
Submerged Arc Welding (SAW)
CO₂ Gas Shielded Welding
Manual welding for special joints
Welding Standards
Full penetration welds
Multi-layer welding procedures
Controlled deformation process
Non-Destructive Testing (NDT)
Ultrasonic Testing (UT)
Magnetic Particle Testing (MT)
Radiographic Testing (RT)
6. Machining Process
Precision machining is performed on critical mechanical parts.
Machined Parts
Wheel assemblies
Bearing housings
Pin shafts
Gear connections
Rail contact surfaces
Equipment Used
CNC milling machines
Boring machines
Lathes
Drilling machines
7. Mechanical Assembly
Mechanical systems are installed and assembled according to technical specifications.
Installed Systems
Traveling mechanism
Lifting trolley
Winch system
Drive motors
Reducers
Wheel sets
Assembly Requirements
Alignment accuracy
Torque control
Lubrication treatment
Dynamic balance checking
8. Hydraulic System Installation
Hydraulic systems provide synchronized lifting and support movement.
Installed Components
Hydraulic cylinders
Hydraulic pumps
Oil tanks
Pipelines and valves
Pressure sensors
Hydraulic Testing
Pressure testing
Leakage inspection
Synchronization testing
9. Electrical System Installation
Electrical and automation systems are integrated into the machine.
Main Components
PLC control cabinet
Frequency converters
Sensors
Limit switches
Operator control console
Remote control system
Electrical Procedures
Cable laying
Circuit connection
Signal testing
Automation programming
10. Surface Treatment and Painting
Surface protection improves corrosion resistance and machine durability.
Surface Treatment Steps
Sandblasting
Rust removal
Primer coating
Intermediate coating
Final paint application
Benefits
Corrosion resistance
Longer service life
Improved appearance
Protection against harsh environments
11. Factory Testing and Commissioning
The completed beam launcher undergoes comprehensive testing before delivery.
Testing Procedures
No-Load Testing
Traveling movement test
Trolley operation test
Control system verification
Load Testing
Static load test
Dynamic load test
Overload protection test
Safety Inspection
Emergency stop verification
Brake performance test
Safety device inspection
12. Disassembly and Packing
After testing, the machine is prepared for transportation.
Procedures
Modular disassembly
Component numbering
Protective packaging
Shipping preparation
Transportation Methods
Truck transportation
Rail transport
Container shipment
Sea freight export
13. Site Installation and Final Commissioning
At the project site, the launcher is reassembled and tested again.
Site Procedures
Structural assembly
Rail installation
Hydraulic reconnection
Electrical commissioning
Trial operation
Final Checks
Alignment inspection
Load testing
Operational safety verification


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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