Kübler Completes First Deployment of STB 320 Girder Bridge in 36-Axle Configuration
- Meagan Wood
- Mar 24
- 3 min read
30-Second Takeaway
Kübler has completed the first operational deployment of its STB 320 girder bridge in a 36-axle configuration, transporting two 282-tonne transformers for a key German energy project. The system demonstrated full 320-tonne payload capacity, efficient crane-free loading, and the ability to navigate complex routes while maintaining low axle loads.
First Operational Use of STB 320
German heavy haulage specialist Kübler has achieved a major milestone with the first operational deployment of its STB 320 girder bridge.
The system was configured in a 36-axle setup, mounted on two 18-axle Scheuerle L13 platforms, and used to transport two heavy transformers weighing 282 tonnes each.
Despite the extended configuration, the system achieved its full 320-tonne payload capacity, demonstrating its performance under maximum load conditions.
Supporting Germany’s Energy Infrastructure
The transported transformers were delivered to a 380 kV substation in Hardebek, part of a critical infrastructure project supporting Germany’s energy transition. The substation plays a key role in transmitting wind energy from northern regions to consumption centres in the south, highlighting the importance of reliable heavy transport solutions in large-scale energy projects.
Multi-Modal Transport Operation
The project involved a complex multi-modal logistics chain. The journey began in Mönchengladbach, where the transformers were transported by rail to the port of Krefeld. From there, they were shipped to Brunsbüttel, where a floating crane transferred the cargo onto the quay.
At this stage, the STB 320 girder bridge enabled direct loading without the need for additional cranes, thanks to its integrated hydraulic lifting system.
Overcoming Route Challenges
The final 70-kilometre road transport presented several technical challenges, including:
Bridge load restrictions
Tight urban sections
Low-clearance structures
The girder bridge’s lightweight design played a crucial role in overcoming these obstacles, keeping axle loads below 13 tonnes and eliminating the need for additional bridge reinforcement.
The 90-metre-long convoy, with a total weight of 529 tonnes, successfully navigated complex routes including roundabouts and restricted access areas.
Precision Handling and Advanced Technology
The operation relied on advanced transport technology to ensure safety and precision.
Key features included:
Hydraulic height adjustment for navigating obstacles
Use of three powerful prime movers
High manoeuvrability for tight route conditions
These capabilities allowed the convoy to maintain stability and control throughout the journey.
Efficient Execution of Complex Transport
Each transformer was delivered within two nights, demonstrating Kübler’s ability to execute large-scale, time-critical transport operations efficiently. The successful deployment of the STB 320 girder bridge highlights its potential for future heavy transport projects requiring high capacity, flexibility, and minimal infrastructure impact.
About
Kübler is a German heavy haulage and logistics specialist, providing transport solutions for oversized and high-weight cargo across infrastructure, energy, and industrial sectors. The company is known for executing complex, multi-modal transport operations and investing in advanced transport technologies to meet demanding project requirements.
Frequently Asked Questions
What is the STB 320 girder bridge?
The STB 320 girder bridge is a heavy transport system designed to carry loads of up to 320 tonnes using modular axle configurations.
What was transported using the STB 320?
Two transformers weighing 282 tonnes each were transported using the system.
How was the transport carried out?
The operation combined rail, sea, and road transport, with the final stage completed using the girder bridge.
What challenges were involved in the transport?
Challenges included bridge load limits, tight urban routes, and low-clearance structures.
How long was the transport convoy?
The convoy measured approximately 90 metres in length and weighed 529 tonnes.
Why is this project significant?
It marks the first operational deployment of the STB 320 girder bridge and demonstrates its capability in extreme heavy transport applications.
