ATEX industrial vacuums for Combustible & Explosive dusts
Every production process involving combustible dusts presents specific risks related to the formation of potentially explosive atmospheres. The extraction of explosive and combustible dusts in ATEX environments is a key factor in worker safety and the protection of industrial installations.
The accumulation of dust, its dispersion, and the presence of ignition sources can compromise the safety of plants, workplaces, and operators. Inadequate management can lead to fires, explosions, accidents, deaths, environmental damage, and reputational damage.
Food and organic:
- flour
- starch
- sugar
- cocoa
- coffee
- spices
- animal feed
- cereals
Wood and cellulose:
- wood dust
- sawdust
- cellulose
- paper
- biomass
Metals:
- aluminum
- magnesium
- titanium
- zinc
- pyrophoric metal dusts
Chemicals and plastics:
- sulfur
- plastic dust (PE, PP, PET)
- epoxy resins
- toner
- carbon
Technological solutions: vacuum cleaners for ATEX areas
Delfin offers a range of vacuum systems designed for integration on the production line or independent use, ensuring maximum ATEX safety at every stage of the process.
Reference Regulations and Certifications for ATEX Dust Extraction
Regulations and standards on combustible dust define a preventive approach based on eliminating the risk at source, reducing ignition sources, and controlling dust dispersion. These principles provide the foundation for designing safe and compliant extraction systems in applications involving explosive dust.
ATEX certified technology for explosive atmosphere safety
Dust-tight protection method (Ex "t") – designed by Delfin
All electrical components are protected by fully sealed enclosures, designed to prevent dust penetration even after aging, thermal stress, and mechanical impact tests, carried out in laboratories accredited according to current ATEX regulations.
Applied to:
- Side channel blowers
- Motorhead and suction units
- Electrical panel
Double filtration level
The system is equipped with two-stage filtration designed for applications with combustible dusts. The standard Class M dissipative primary filter guarantees 99.9% efficiency and constitutes the first level of protection towards the internal Zone 20. The HEPA H14 absolute filter represents the second level, ensuring an efficiency of over 99.995% which, combined with the Dust Tight features, ensures the highest level of safety and guarantees the emission of clean air into the environment, free from ATEX risk.
The main filter is tested for explosion and collapse resistance in accordance with the new EN 17348 standard. These tests ensure reliable, long-lasting performance in heavy-duty applications and prevent the risk of tearing. The electrical resistance is less than 10# Ω, in accordance with EN 17348.
Neutralization systems for reactive or self-igniting dusts
Dedicated solutions for the safe management of reactive or self-igniting dusts, including conductive or low ignition energy (MIE) dusts.
Systems tested in laboratories accredited according to EN17348 for the immersion neutralization of collected dust, ensuring a minimum efficiency of 95% and a maximum evaporation rate of 2%.
ATEX-certified design, construction, and components
Structures made of high-quality stainless steel or coated with conductive paints tested in accredited laboratories, designed to ensure electrical continuity and dissipation of electrostatic charges.
Antistatic, spark-proof deflectors, accessories, flexible hoses, and non-metallic conductive or antistatic components ensure that every part of the equipment is properly grounded.
ATEX-certified automatic filter cleaning systems can be integrated with capacity, pressure, and efficiency sensors to enable continuous monitoring of operating conditions and system performance.
Field experience: case studies in combustible dust extraction
Industries
Food
Pharmaceutical
Chemical
Woodworking
Additive manufacturing
Metalworking
Waste Recycling
Heavy industry
Defense
Aerospace
FAQ: ATEX Safety and Extraction
This is achieved by using vacuum systems with immersion neutralization technology that stabilizes metals such as aluminum and titanium, making them non-flammable.
Many food powders, such as flour and sugar, are highly flammable. An ATEX-certified vacuum system eliminates the risk of mechanical or electrical sparks during production.
These dusts can cause short circuits. Our systems use conductive materials and grounding to safely and continuously discharge energy.
We use certified automatic cleaning systems that maintain filter efficiency without requiring the operator to open the machine, preventing the dispersion of explosive dust.
This filter is tested to withstand extreme pressure (including explosion conditions) and to dissipate static electricity, ensuring maximum protection in the most demanding industrial applications.