Transport, efficiently engineered and built to last.
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Complete project support and conceptual planning of the project.
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Identification of the root cause of damage and development of long-term solutions.
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Preparation of refurbishment plans including structural calculations and construction drawings.
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Structural and design assessment as well as engineering analysis of crane runways.
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Crane runway surveying.
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Alignment of crane runway geometry vertically (height) and horizontally (track alignment).
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Grinding and spark-free milling of crane runway rails.
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Manufacturing, delivery, and installation of crane runways as new construction or partial/full replacement.
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Repair welding on crane runway rails, girders, and supports.
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Replacement of crane runway rails, girders, and supports.
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Welding of crane runway rail joints using flux-cored wire in accordance with SEB 368 100.
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Reinforcement / load capacity increase of crane runways.
Transport, efficiently engineered and built to last.
Refurbishment and repair of crane runway steel structures.
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Steel construction work
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Repair welding
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Crane runway load capacity upgrades
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Welding crane runway rails
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Welding work on crane runways
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Work on crane runway girders and supports
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Replacement of supports, girders, and rails
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Reinforcement measures for changes in use or load increases
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Welding of crane runway rail joints using flux-cored wire in accordance with SEB 368 100
Precision that supports. Technology that delivers.
Grinding & reprofiling.
When millimeters make the difference, uncompromising quality matters.
Grinding and reprofiling make a decisive contribution to running precision, operational safety, and the extended service life of your rail systems. Whether it involves crane runway rails in production environments or rails for storage and retrieval machines in automated high-bay warehouses, targeted machining effectively eliminates wear marks, deformation, and unstable running behavior. The result: smooth motion sequences, reduced vibrations, and reliable operation.
Depending on the application and site requirements, different processes are used. Conventional grinding enables uniform surface machining with a high level of precision. In sensitive areas or environments with increased fire protection requirements, spark-free milling provides a safe and material-friendly alternative — carried out directly on site, efficiently and precisely.
Transport, efficiently engineered and built to last.
Repair and refurbishment of
steel structures for crane runways and storage & retrieval machines (SRMs).
Crane runways and automated storage & retrieval machines (SRMs) are essential components of industrial production facilities, enabling the safe and efficient transport of heavy loads. However, wear, material fatigue, or incorrect design can lead to damage that negatively impacts production processes. Lassner Industrieservice offers comprehensive services for the refurbishment and repair of crane runways — both in North Rhine-Westphalia and throughout Germany.
Individual planning and implementation.
Our experienced team manages the complete planning and execution of maintenance and refurbishment measures. Starting with a detailed damage analysis to identify the causes of wear or structural defects, followed by a structural assessment of the system to verify compliance with current engineering standards and identify potential weaknesses in the design, through to the preparation of structured project schedules — we ensure smooth and efficient project execution.
Based on these findings, we manufacture precisely fitting replacement components and carry out professional on-site installation. Throughout the entire process, we work closely with our customers to develop individual, practical, and sustainable solutions.
Process of a typical refurbishment project
1. Damage report and initial assessment
Refurbishment projects usually begin with the first signs of problems, either through your own observations during operation or as part of the legally required annual inspections. Once we receive your enquiry, we analyze the situation in order to develop a sustainable and technically sound solution.
2. Analysis of the cause of damage
In principle, we distinguish between two main causes of damage to crane runways and automated storage and retrieval systems:
– Wear: Worn rail heads, burr formation, cracked weld seams, or geometric deviations in track gauge and height.
– Design defects: Incorrect structural calculations, inaccurate alignment during initial installation, or incorrectly designed supports.
3. Customized refurbishment concept
Based on the analysis, we prepare a customized refurbishment concept. This can be based on an on-site appointment or, if desired, on photos, inspection reports, or expert assessments. In more complex cases, we involve structural engineers or external experts.
4. Quote and process planning
You will then receive a transparent quote that takes production-maintaining or production-friendly execution into account, including time windows and project coordination.
5. Manufacturing of replacement components
We manufacture all components required for refurbishment or replacement in-house, with our own personnel and on our own machines. This enables us to ensure quality, precision fit, and adherence to deadlines.
6. Professional on-site installation
Our experienced crane technicians carry out the professional installation efficiently, purposefully, and with minimal downtime for your operations.
7. Completion and documentation
On request, you will receive an installation and measurement report documenting correct execution and compliance with all relevant tolerances, as proof for your internal quality assurance or external inspection bodies.
Repair welding
Because crane runway components such as girders, supports, and rails are subject to operational wear, repair welding may become necessary. We first inspect the respective component for defects and then begin the welding work.
Replacement parts manufacturing
If parts of the crane runway or automated storage and retrieval systems can no longer be repaired, we can manufacture replacement parts in our own production hall. Our certified employees manufacture crane runway and AS/RS supports, girders, and rails according to design drawings or samples. We ensure that the replacement parts are precisely matched to our partners‘ crane runways. After manufacturing, we are also happy to take care of replacing the corresponding parts.
Work on crane runway rails and automated storage and retrieval systems
If the existing crane runway rails or rail systems of automated storage and retrieval systems are worn, several refurbishment options are available. These include:
- Grinding burr formation on crane runway rails or AS/RS rails
- Repairing broken or cracked crane runway rail joints using flux-cored wire in accordance with SEB 368 100
- Re-welding cracked weld seams between the rail and crane runway girder or AS/RS girder
- Increasing weld seam volume to reinforce the crane runway or AS/RS structure
- Changing the rail system, for example from square profile to A-profile in clamped or welded execution
- Replacing the entire girder/rail system
- Hardfacing worn areas
We carry out all of the measures listed above on both crane runways and automated storage and retrieval systems (AS/RS).
Because the optimum refurbishment depends on many factors and must be tailored individually to your system, we are best able to explain the sensible options in a personal consultation.
Welding of crane runway rail joints using flux-cored wire in accordance with SEB 368 100:
When welding crane runway rail joints, we exclusively use flux-cored wire welding, as it produces significantly more durable welded joints than electrode welding. Unlike MAG welding, this process is carried out without shielding gas. To control the weld pool, the gap is enclosed with copper backing blocks.
The cover layer of the weld seam is applied using a hardfacing electrode to achieve a particularly wear-resistant surface. Finally, the weld seam is ground smooth and cooled in a controlled manner to create a connection that is as low-stress and even as possible. This enables us to ensure smooth crane travel.
The welding work is carried out in accordance with DIN EN 1090-2:2018 EXC3 and with consideration of SEB 368 100. Only modern welding machines tested in accordance with DIN 17662 are used.
Crane runway surveying
Over time, crane runways and automated storage and retrieval systems (AS/RS) may experience deterioration in their geometric condition. This can lead to horizontal (track gauge) and vertical (height) changes, which may have various causes. In such cases, surveying the system is advisable.
As part of a crane runway or AS/RS survey, we can determine deviations from the target condition, identify causes, and propose and carry out refurbishment measures. The survey is performed using state-of-the-art laser measurement technology and documented. We then discuss the evaluation with you and derive further options for action.
Crane runway load capacity upgrades
To ensure that our partners can continue to use their crane runways optimally after changes in use or load increases, crane runway load capacity upgrades are part of our services. Thanks to these reinforcement measures, our certified welders ensure that the load capacity of the crane runway is increased by several tons.
Quality assurance and certifications
Our work is carried out in accordance with the highest quality standards. We are certified according to DIN EN 1090-2:2018 EXC3, which authorizes us to perform demanding welding work in steel construction. For quality inspection, we use dye penetrant testing, among other methods. An in-house welding engineer monitors all processes and ensures compliance with all standards.
Our services are also available for automated storage and retrieval systems (AS/RS)
Many of our services for crane runways, from laser surveying to rail refurbishment, are also available for automated storage and retrieval systems in high-bay warehouses. Thanks to the similar requirements, we can rely on proven methods and extensive experience.
UVV and DGUV inspections of crane systems and automated storage and retrieval systems (AS/RS)
As a certified specialist company, we are authorized to carry out the required recurring inspections in accordance with BetrSichV Section 2 (6), DGUV Regulation 52, as well as UVV inspections on crane systems and automated storage and retrieval systems (AS/RS). These inspections are legally required to ensure the long-term safe operation of your systems.
This ensures that your systems remain legally compliant, safe, and ready for operation, without unnecessary downtime. Contact us if you need a reliable inspection of your crane system or AS/RS; we will take care of it for you.
CUSTOMIZED AND WELL THOUGHT OUT
Does your company want to implement an extensive project?
Together with our employees, we implement projects of all sizes for you.
From concept to completion, we work according to the highest standards and with the latest processes.
WHY YOU SHOULD CHOOSE US
Standard is not enough for us — we do more!
Professionalism
The high level of professional qualification of our employees and our modern technology guarantee a high degree of professionalism in the implementation of projects of any size.
Safety
When implementing our projects, we place great importance on carefully observing all safety standards and completing the work on schedule.
Quality
The professionalism of our employees and our modern technology ultimately lead to the high quality of results our customers can expect.
Applications
Crane runways are used in numerous industrial sectors and are a central component of efficient material flow and transport solutions. In the steel industry, heavy industry, and automotive industry, they enable the safe and precise transport of heavy steel plates, machine parts, or cast components within production. Crane runways are also used in the construction industry to transport building materials such as concrete, reinforcing steel, or technical equipment.
In the logistics sector, crane systems facilitate internal goods handling, especially in warehouses, distribution centers, and production logistics areas. The use of crane runways helps optimize storage and transport processes, accelerate workflows, and increase safety standards.
FAQs
Which services are offered for crane runway repair?
Services include repair welding on crane runway girders, supports, and rails, replacement of damaged components, technical coordination with structural engineers, on-site installation, and crane runway surveying using laser technology.
What does upgrading the load capacity of a crane runway achieve?
A load capacity upgrade increases the load-bearing capacity of an existing crane runway in order to adapt it to changed usage requirements.
Which quality standards apply to work on crane runways?
The work is carried out in accordance with DIN EN 1090-2:2018 EXC3. In addition, dye penetrant testing is used for inspection, and an in-house welding engineer monitors compliance with all standards.
Quality assurance
The highest standards of quality, precision, and reliability apply to all services provided by our company. Our certified specialists support every project with technical expertise and the utmost care, from planning through to implementation.
All manufactured parts and components undergo comprehensive quality testing to ensure consistently high standards. With our many years of experience and regular further training, we ensure professional execution using the latest state of the art. This creates the basis for efficient processes, maximum customer satisfaction, and sustainable project success.
"Looking to the future, and building on our strong foundation, I expect further growth in all our specialist
fields and, through continuous investment in state-of-the-art plant technology, the opportunity
to continuously expand our range of services and depth of manufacturing."
Joshua Lassner
Managing Director