07-05-2025
Static electricity in silos: invisible, but never innocent
Static electricity poses a real explosion risk when filling and emptying silos with dry materials. During this process, electrostatic charges develop through friction. Just one spark is enough to cause a dust explosion. This applies to both metal and composite silos.
In sectors such as food, chemicals, and feed – where flammable or explosion-sensitive materials are handled – this risk cannot be ignored.
How Polem solves this problem
At Polem, safety is paramount. In collaboration with ISMA (Kontich, Belgium), we developed a certified grounding system, specifically for silos containing explosion-hazardous bulk materials.
The advantages of the system:
- Reliable grounding - Effectively captures static charge and complies with applicable safety standards.
- Hygienic design - The stainless steel screw plug and open fork connection are easy to clean and prevent dirt accumulation. Important for food and feed environments.
- One-piece construction - Made of special stainless steel spring steel, without welded seams. This prevents breakage and extends service life.
- Freely hanging grounding - The grounding rods follow the flow pattern of the product in the silo, for consistent effectiveness.
- Simple maintenance - The system can be visually inspected without disassembly.
Safe not only inside, but outside too
In addition to the internal grounding rods, grounding of external metal components is also advised. This creates a complete solution without weak links.
Why choose Polem?
✅ More than 50 years of experience in composite silos and tanks
✅ Leader in ATEX solutions for explosion-hazardous environments
✅ Rapid implementation, minimal interruption
✅ Complete support from advice to maintenance
Ready for stricter requirements
Our grounding system helps you comply with current and future safety standards. This provides peace of mind during audits, inspections, and insurance assessments.
Security starts at the foundation
Eliminating static electricity is not a detail, but an essential part of your process safety.
Let our specialists analyze your situation and receive tailored advice. Within a few days, your silo will be protected – without significant downtime.
Want to know more?
Contact Polem or request a no-obligation consultation directly.
Every grain. Every drop. Safely stored.
It's not just a silo. It's a Polem.
