The Abetong Longline system is designed to deliver consistent quality,
flexibility and efficiency in the production of concrete railway sleepers.
Compared to other production methods the Long Line approach offers several
key advantages.
Great productivity
This production method enables high productivity by creating a smooth,
predictable and efficient workflow along the entire longline. The simplified
handling reduced mechanical intervention and clear process logic support fast
cycle times and high output without compromising quality. As a result, the
method combines reliable production efficiency with consistent product
performance.
High dimensional accuracy and consistency
With the Abetong Longline system, sleepers are cast in fixed mould positions,
enabling precise control over geometry and tolerances. This contributes to
consistent product quality across both standard sleepers and more complex
turnout components.
In comparison, carousel systems rely on individual prestress and the quality
aren’t secured in the same way as in a Abetong Longline system.
Efficient production of turnout sleepers
Turnout sleepers place higher demands on accuracy, reinforcement layout and
concrete quality. The Abetong Longline system is particularly well suited for
this type of production, as it allows one bed to handle multiple kinds of turnout
sleepers.
Robust and proven production concept
The Abetong Longline system is based on a straightforward and robust
production principle with fewer mechanical interfaces. This reduces system
complexity and supports stable, reliable production over time.
Carousel systems, while efficient for high-volume standard production, often
involve more mechanical handling and system dependency.
By lowering the mould before releasing the prestressing force in the wires, the
Abetong Longline process ensures a controlled and uniform transfer of
prestress into the concrete. This sequence reduces friction and restraint
between the sleeper and the mould, allowing the concrete element to respond
freely as the force is released. As a result, internal stresses are more evenly
distributed, minimizing the risk of micro-cracking, distortion or surface
damage. The method contributes to improved dimensional accuracy, better
surface quality and a more reliable long-term structural performance of the
sleeper.
Optimised quality control
Because the production process in a Longline system is less fragmented,
inspection and quality control can be integrated more naturally throughout the
casting and curing process. This supports consistent quality and reduces the
risk of deviations.
Lower adaptation thresholds
The Abetong Longline system allows adjustments in production setup without
extensive reconfiguration. This makes it easier to adapt production to changing
project requirements or smaller production series, where carousel systems are
typically less flexible.
Quality that last
The long-term quality and durability of Abetong sleepers are designed to
extend well beyond standard expectations. Our production method, materials
and quality control are based on achieving a service life of at least 50 years.
This is supported by a comprehensive study evaluating material performance,
structural behaviour and long-term durability under real railway conditions.
The results confirm that the sleepers maintain their structural integrity and
functional performance over time, providing a reliable, long-life solution with
predictable lifecycle performance and reduced maintenance requirements.
Summary
The Abetong Longline system offers a flexible, precise and robust alternative to
carousel systems, particularly when a efficient and repetitive system is needed.
It supports high and consistent quality, efficient handling of complex products,
and a production flow that is well suited to modern railway infrastructure
requirements.