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NT Service GmbH

Silo cleaning from the market leader

NT Service GmbH is a leading specialist company for silo cleaning and silo unblocking – with six locations, more than 20 specialised professionals and operations throughout Europe.

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Siloreinigung NT Service GmbH

Clean silos –
safe processes

Whether food products, construction materials or chemical substances are involved, contaminated or blocked silos can bring entire processes to a halt. That is why we clean precisely where the highest requirements for hygiene, safety and efficiency apply.

Food
industry

Pest infestation, microbes or cross contamination: with raw materials such as flour, sugar or starch, regular silo cleaning is mandatory. We ensure hygienic and documented cleanliness – audit ready and compliant with applicable standards.

Construction & cement industry

Cement, lime or fly ash are stored under extreme conditions. We clean silos even in cases of heavy incrustation, material bridging or mechanical defects – using rope access, explosive cleaning or high pressure technology, depending on requirements.

Chemical
industry

Reactive, toxic, explosive: many chemical substances require specialist technology and comprehensive protective measures. We are trained for operations in ATEX zones, under inert gas atmospheres and in industrial areas with hazard potential.

Operations that convince – voices from industry

We did not expect our silo to regain full capacity like this. The explosive cleaning was completed surprisingly quickly – without disrupting our operations. The process convinced us.
Holcim
Tim BorchersHolcim GmbH
We had an acute problem with a blocked silo – nothing was moving anymore. NT Service GmbH was on site the next morning, brought the right equipment and resolved everything within just a few hours. In an operational emergency, you could not ask for faster support.
Arla Foods
Pascal MertesArla Foods Deutschland GmbH
Our facility is subject to strict safety requirements, especially in ATEX areas. NT Service GmbH impressed us with its expertise and precise execution. Even the demanding explosive cleaning was carried out professionally and with absolute safety.
Hans Freitag, Keks- und Waffelbäckerei
Anita Freitag-MeyerVerdener Keks- und Waffelfabrik Hans Freitag GmbH & Co. KG

Specialised. Certified. Excellent.

As a master craftsman company with extensive experience and certified procedures, we offer far more than conventional silo cleaning. Our fields of operation cover the full spectrum of industrial cleaning and inspection processes – reliable, documented and compliant with applicable standards.

  • Silo cleaning
  • Silo unblocking
  • Silo inspections
  • Silo suction technology
  • Vacuum suction technology
  • Tank and welding services
  • Wall thickness measurement and reporting
  • Silo assessment and expert reports
  • Weld seam assessment
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Silo cleaning – safe, documented and professional

Whether cleaning, inspection or blockage removal: our standards begin with qualification – and go beyond the result. Every operation is carried out under the supervision of experienced specialists, using verified procedures and certified equipment.

Training

Our team leaders are specially trained and supervise every operation directly on site – ensuring professional silo cleaning.

Certification

Certified by TÜV, BG and REFA – our services are verified, documented and fully audit ready in every respect.

Responsibility

State-of-the-art technology, highest standards – for occupational safety, hygiene and complete documentation.

Silo cleaning in practice – case studies from industrial operations

Our case studies present real operations carried out by NT Service GmbH – including specific requirements, challenging hazard situations and professional execution. Each case study demonstrates how we reliably and compliantly manage safety critical specialist operations.

Explosive technology: blockage removed

Explosive cleaning in a blast furnace slag silo in Lübeck

A blocked bunker with compacted blast furnace slag was opened using explosive cleaning. After vibration measurements and light charges, intensity was controlled to restore material flow.

Vacuum suction technology

Vacuum suction technology is a proven method for removing free flowing bulk materials from silos and systems. Depending on material, location and access, we use suction technology to ensure clean and safe emptying.
Typical applications: vacuuming silos – Emptying flour silos – Emptying silo vehicles – Extracting lignite dust (BKS) – Vacuum suction operations for silo blockage removal
Siloinspektion unter Inertgas

Rope access technology

In 98% of cases, we use FISAT-compliant rope access techniques as our access method. This allows access even to hard-to-reach areas. We carry out installation and assembly operations throughout Europe.
Rope access makes it possible to safely reach even confined or elevated silo areas – particularly suitable for manual cleaning and inspection tasks.

Explosive cleaning

When conventional methods are not sufficient, we use targeted explosive cleaning. With small, precisely placed charges, we safely and effectively remove even massive incrustations in silos and production facilities.
Explosive cleaning is used when material bridging, blockages or severe buildup can no longer be removed mechanically. Our certified specialists plan and document every step – ensuring maximum safety and effectiveness.

High pressure cleaning

High-pressure water jetting is used to loosen stubborn residues and thoroughly clean silo walls effectively and safely. The process is suitable for both dry and wet industrial cleaning applications in demanding environments.
– High-pressure cleaning of silo walls – Removal of buildup and deposits – Cleaning before coating or repair work – Dry and wet processes depending on the application – Optionally combined with rope access techniques or ATEX equipment
hochdruckreinigen

Detailed cleaning report

We prepare an inspection report with certificate for every silo cleaning. This allows you to prove and document the condition of your systems at any time – and reminds you of the next scheduled cleaning.
In addition to the report, we can provide video documentation of the cleaning on request. This gives you direct insight into the condition of your silo – traceable and visually documented.
NT Service GmbH Messung

Welding technology

We use innovative welding techniques – safely, efficiently and exclusively with rope access. This allows us to work flexibly while significantly reducing operational risks when working in hard-to-reach areas.
We offer various welding processes for the repair of storage tanks, oil pans, silos and cast housings – for example in cases of corrosion, cracks or leaking seams.

Frequently Asked Questions

Here we answer common questions about silo cleaning. For further questions, we are happy to assist you personally – simply use our contact form.

Silo cleaning refers to the professional cleaning of silos – large containers used to store free flowing bulk materials such as grain, cement or plastic granulate. It is essential for ensuring product quality, preventing cross contamination and extending the service life of the entire system.

Specialist companies have qualified personnel, specialised equipment and all relevant certifications. They understand the legal requirements and carry out cleaning safely, with full documentation and in compliance with applicable standards – ensuring maximum operational safety and consistent product quality.

Depending on the requirements, different methods are used. These include vacuum extraction, manual cleaning with high-pressure water jetting and – in cases of massive incrustation – explosive cleaning. The choice of method depends on the bulk material, the technical condition of the silo and the operational framework conditions.

Cleaning intervals depend on the stored material, intensity of use and legal requirements. In many industries, annual silo cleaning has proven effective – more frequently where sensitive materials or high turnover rates are involved.

  • Product safety: Contamination and impurities are reliably prevented.

  • Longer service life: Deposits and corrosion are detected and removed at an early stage.

  • Legal certainty: Hygiene and occupational safety requirements are verifiably met.

  • Greater efficiency: Production downtime caused by blockages or obstructions is prevented.

  • Improved safety: Trained specialists and certified equipment significantly reduce the risk of accidents.

During silo cleaning, the silo is fully emptied, cleaned and then professionally inspected. All surfaces are cleaned, potential damage is addressed and the system is checked for full functionality.

Are you looking for a qualified partner for the maintenance, cleaning or inspection of your industrial systems? NT Service GmbH supports you with experienced specialists, verified procedures and reliable execution. Contact us – we will be happy to advise you individually and without obligation.

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