Bridge Girder Launcher

Product Description

A bridge girder launcher, also known as a bridge erecting gantry crane or bridge construction beam erecting machine, is a heavy-duty lifting device specifically designed for bridge construction. It is used to hoist precast beam segments or entire beams into place during the construction of long-span bridges (especially segmental bridges, beam bridges, and box girder bridges). The bridge girder launcher moves across the bridge span, achieving efficient and high-precision positioning of the beams and increasing the assembly speed of the bridge structure.

This heavy equipment is crucial for the assembly of bridge spans because it can precisely position beams above the piers and is widely used in the construction of highways, railways, and overpasses.

Types of Bridge Girder Launchers

Bridge Girder Launcher

A bridge girder launcher machine is a heavy-duty lifting device specifically designed for bridge construction. It possesses strong load-bearing capacity and high operational precision, enabling the safe and efficient hoisting and installation of precast beam segments. Its main structure includes the main girder as the core load-bearing component, a hydraulically adjustable outrigger system for stable support, and a lifting trolley equipped with frequency converter control, achieving smooth lifting and precise positioning of the beam segments. It is widely applicable to the construction of various types of bridges, including highways and railways, and exhibits excellent adaptability and reliability, especially in projects with complex terrain and limited space.

Caraterísticas

• Strong Load-Bearing Capacity: Safely hoist heavy precast beam segments, maintaining stability under complex working conditions.
• Precise Control: Utilizes variable frequency speed control and precise positioning technology to achieve smooth start-stop and millimeter-level alignment, ensuring construction quality.
• Flexible Adaptability: The outriggers and main beam structure can be flexibly adjusted according to terrain and span, adapting to various construction environments.
• Comprehensive Safety Assurance: Integrates multiple safety devices such as overload protection, limit switches, and emergency stops to mitigate operational risks.

Aplicações

• Highway and Railway Bridges: Hoisting precast beam segments for highway bridges, ensuring efficient and safe bridge construction.
• Urban Rail Transit: Suitable for the construction and maintenance of bridges for subways, light rail, etc., quickly and accurately hoisting large precast beam segments.
• Large-Span Special Bridges: Used for constructing large-span bridges spanning rivers, lakes, and straits, possessing strong load-bearing capacity and high operational precision.

Technical Specifications

Precast Beam Moving Grua de pórtico

The Precast Beam Moving Gantry Crane is a large-tonnage rubber-tired gantry crane designed specifically for lifting, transporting, and loading/unloading operations in bridge precast beam yards. Equipped with specialized lifting tools, it can work in conjunction with beam transport vehicles to efficiently install entire span box girders. The entire machine is fully hydraulically driven, possessing flexible steering capabilities, and integrates PLC intelligent control and multiple safety protection systems to ensure stable and reliable operation. Rated lifting capacity ranges from 10 to 450 tons, supporting dual-machine coordinated lifting of 900-ton loads, suitable for lifting ultra-large components.

Caraterísticas

• Multifunctional Integrated Operation: Designed specifically for the hoisting, transporting, and repositioning of precast beams, steel frames, and molds. Supports four-point lifting and a three-point balancing system to ensure even load distribution and safe, stable operation.
• Fully Hydraulic Flexible Drive: Capable of linear, diagonal, and lateral movement, as well as in-situ rotation. Under heavy load conditions, the support cylinders automatically ground to distribute the load and extend equipment life.
• Intelligent Control and Safety Assurance: Integrates a PLC intelligent control system, multiple safety monitoring and emergency protection mechanisms. Key hydraulic and power components are sourced from international brands, ensuring reliable operation under high loads.

 Aplicações

• Bridge Precast Beam Yards: Used for loading, unloading, and transporting precast beams, and for coordinating with beam transport vehicles for the installation of entire span box girders.
• Large Component Factory Handling: Efficiently handles the hoisting of heavy concrete beams, steel structures, and other materials in precast component factories.
• Transportation Infrastructure Project Support: Widely used in box girder erection projects for highways, railways, and intercity rail, meeting the needs of large-scale infrastructure construction such as high-speed railways.

Especificações técnicas

 Precast Girder Lifting Grua de pórtico

The Precast Girder Lifting Gantry Crane is a tire-mounted gantry crane specifically designed for bridge construction. It is primarily used for lifting and transferring precast beams between the beam fabrication area, storage area, and transport vehicle. This equipment supports dual-crane coordinated lifting or single-crane dual-trolley dual-spreader operation, adapting to diverse lifting needs. The main body adopts a truss or box girder structure, and its modular design makes installation, dismantling, and relocation convenient and efficient. In addition to transporting precast beams, it can also be used for the assembly and disassembly of bridge erecting machines and the erection of low-pier bridges. It is widely applicable to highway, bridge, and other infrastructure construction sites, combining flexibility and economy.

Caraterísticas

• Multiple Operation Modes: Supports collaborative operation modes such as dual-machine lifting and single-machine dual-trolley operation, flexibly adapting to the hoisting needs of precast components of different lengths, weights, and shapes.
• Highly Efficient Site Transfer Capability: Utilizes modular steel structures and standardized connections, facilitating convenient equipment disassembly, transportation, and assembly, enabling rapid response to site transfer needs between different construction sites.
• Intelligent Safety Control: Integrates safety functions such as operation monitoring, limit protection, and overload warning, effectively preventing operational risks and reducing equipment accident rates.

Aplicações

• Loading and Shipping: Safely hoisting inspected and qualified precast beam segments onto beam transport vehicles, preparing for on-site erection.
• Large Equipment Assembly: Assisting in the assembly and disassembly of large construction equipment such as bridge erecting machines at bridge construction sites.
• Temporary Component Hoisting: Applicable to the hoisting of large steel formwork, molds, and other temporary components in various construction sites.
• Low-Pier Bridge Erection: Directly hoisting and positioning beam segments in suitable low-pier bridge projects.

Especificações técnicas

A Leading Bridge Beam Launcher Manufacturer and Supplier – Weihua Crane Group

Weihua is a leading bridge erection machine manufacturer and supplier in China, offering a full range of products including bridge girder launchers, mobile gantry cranes for precast beams, and precast beam lifting gantry cranes. With years of R&D and manufacturing experience, advanced production facilities, and a professional engineering team, we can provide customized design solutions to meet specific customer needs. We focus on providing efficient, low-maintenance, and reliable lifting equipment designed to optimize material handling and improve operational efficiency across various industries. For customized bridge erection machines, please contact us immediately for exclusive solutions and accurate quotes.