Dear readers,
We, NT Service GmbH, would like to tell you about our recently completed project for silo cleaning / bunker cleaning, silo emptying and repair of several foundry sand silos.
As part of the project, we cleaned, emptied and repaired a total of 4 foundry sand silos manually, dry and by mining means. To do this, we used state-of-the-art rope access technology to enable us to reach even hard-to-access areas without any problems.

Fig. 1 – Rope access technician in the silo system silo bunker
Of course, the safety of our employees and your systems was always our top priority.
We started by cleaning the silos. We used special cleaning techniques and pneumatic tools to remove all deposits and impurities in the silos. We made sure that the cleaning techniques did not impair the positive material properties of the foundry sand.
We then emptied the silos, using different emptying techniques to ensure gentle emptying and to prevent damage to the inner walls of the silos.
Once the cleaning and emptying work was complete, we also repaired the foundry sand silos. This involved repairing minor damage and cracks in the walls and floor of the silos in order to restore the functionality of the systems.

Fig. 2 – Rope access technician during manual silo cleaning
When it comes to occupational safety, we place the highest demands on the safety of our employees and your systems during silo cleaning / bunker cleaning and maintenance. We use state-of-the-art rope access technology to reach even hard-to-access areas. We ensure that our employees are always appropriately equipped and trained to recognize and avoid potentially dangerous situations.
To ensure the quality of our work, we also attach great importance to the qualifications of our employees. Our rope access technicians have extensive training and many years of experience in the field of silo cleaning and maintenance. They also undergo regular training to keep them up to date with the latest technology and safety requirements.
You can therefore always rely on NT Service GmbH to carry out your silo cleaning and repair work professionally and safely.
In the past, it was common practice for plant operators to use their own personnel, who were insufficiently qualified, to clean and maintain silos and similar facilities. This often led to dangerous situations and accidents, as the employees did not have the necessary expertise and skills to work safely in such facilities.
Nowadays, this situation has changed fundamentally. Specialized companies such as NT Service GmbH take care of silo cleaning and maintenance, using qualified and experienced personnel. This allows plant operators to concentrate on their actual area of responsibility and rely on the fact that the work on the plants is carried out by specialists. This contributes significantly to increasing safety in the workplace and minimizes the risk of accidents and downtime.

Fig. 3 – original access procedure absolutely not recommended
Originally, work was also planned using blasting technology. However, we decided against this method due to the positive material properties and the low clumping of the foundry sand.
We are pleased that we were able to successfully complete this project and will be happy to assist you with similar projects in the future.
Silo cleaning is an important part of the regular maintenance of systems in various branches of industry. Depending on the type of bulk material and the system, different methods and techniques can be used.
Silo cleaning of gypsum silos, for example, requires a special approach, as gypsum is a very fine-grained material that can quickly clump together. Here, NT Service GmbH relies on gentle cleaning methods to prevent damage to the silo walls.

Fig. 4 – Manual mining removal of the material quantities
Sand silos and gravel and grit silo systems also require careful cleaning to ensure that the system functions properly. Various methods can also be used here, such as manual cleaning or cleaning with special cleaning machines.
NT Service GmbH has many years of experience in silo cleaning and maintenance for a wide range of systems and uses the right cleaning techniques for every system and every bulk material. Our qualified employees ensure that your systems are always in perfect condition and guarantee safe operation.
Silo cleaning involves not only removing the bulk material from the silo, but also cleaning the silo walls and ceilings. Special cleaning machines are used here, which work with water, compressed air and cleaning agents. The bulk material is loosened from the silo and vacuumed off, while at the same time the silo walls and tops are freed from contamination.
For particularly stubborn contamination or incrustations, blasting technology can also be used, in which the material is removed from the silo walls using compressed air or a water jet. Special covers and collecting devices are used to protect the surrounding area from dust and dirt.
Repair work is also carried out on the silo walls and ceilings to maintain the silos. This includes welding work, the application of protective coatings or the replacement of seals. Checking and maintaining the ventilation and exhaust air systems is also part of the regular maintenance of silo systems.
We process the following silo types:
Silo cleaning of agricultural silos
Silo cleaning of aluminum silos
Silo cleaning of ash silos
Silo cleaning of outdoor silos
Silo cleaning of construction site silos
Silo cleaning of building material silos
Silo cleaning of ventilation silos
Silo cleaning of concrete silos
Silo cleaning of binding agent silos
Silo cleaning of double-chamber silos
Silo cleaning of stainless steel silos
Silo cleaning of single-chamber silos
Silo cleaning of mobile silos
Silo cleaning of molding material silos
Silo cleaning of feed silos
Silo cleaning of grain silos
Silo cleaning of grain silo facilities
Silo cleaning of grain silos
Silo cleaning of foundry silos
Silo cleaning of gypsum silos
Silo cleaning of smooth-walled silos
Silo cleaning of granulate silos
Silo cleaning of large-capacity silos
Silo cleaning of cast asphalt silos
Silo cleaning of liquid manure silos
Silo cleaning of high-bay silos
Silo cleaning of high-bay silos
Silo cleaning of High silos
Silo cleaning of wooden silos
Silo cleaning of homogenizing silos
Silo cleaning of industrial climbers
Silo cleaning of industrial silos
Silo cleaning of interior silos
Silo cleaning of gravel silos
Silo cleaning of compost silos
Silo cleaning of concentrated feed silos
Silo cleaning of plastic silos
Silo cleaning of storage silos
Silo cleaning of food silos
Silo cleaning of ground coffee silos
Silo cleaning of flour silo systems
Silo cleaning of multi-chamber silos
Silo cleaning of metal silos
Silo cleaning of mixed silos
Silo cleaning of monoblock silos
Silo cleaning of assembly silos
Silo cleaning of plate silos
Silo cleaning of rectangular silos
Silo cleaning of green coffee silos
Silo cleaning of round silos
Silo cleaning of round silo systems
Silo cleaning of roasted coffee silos
Silo cleaning of sack silos
Silo cleaning of salt silos
Silo cleaning of sand silos
Silo cleaning of sludge silos
Silo cleaning of Bulk silos
Silo cleaning of segment silos
Silo cleaning of silo construction
Silo cleaning of silo containers
Silo cleaning of silo systems
Silo cleaning of silo technology
Silo cleaning of storage silos
Silo cleaning of special silos
Silo cleaning of grit silos
Silo cleaning of chip silos
Silo cleaning of steel silos
Silo cleaning of standard silos
Silo cleaning of stationary silos
Silo cleaning of grit silos
Silo cleaning of transport silos
Silo cleaning of hopper silos
Silo cleaning of drying silos
Silo cleaning of loading silos
Silo cleaning of rolled asphalt silos
Silo cleaning of exchangeable silos
Kind regards,
Your team from NT Service GmbH