ATEX Vacuum Cleaners | Certified Explosion Proof Dust Extractors

To meet strict UK and EU safety regulations, an ATEX vacuum must be constructed with specific engineering safeguards:

1. Anti-Static / Conductive Construction

Standard plastic components can generate static electricity as dust moves through the hose. An ATEX vacuum uses conductive materials and carbon-infused plastics to ensure every part of the machine is grounded. This prevents a "static arc" (a spark) from jumping and igniting the dust cloud inside the tank.

2. Brushless or Sealed Motors

Traditional vacuum motors use carbon brushes that naturally create small sparks during operation. ATEX vacuums utilize brushless induction motors or compressed-air-driven (venturi) systems that do not produce any internal sparks. They are also sealed to prevent external flammable gases from entering the motor housing.

3. Certified Filtration & Containment

The filters must be antistatic-treated. In many cases, these vacuums are used for hazardous materials like flour, wood dust, or aluminium powder, requiring high-efficiency filtration to ensure that combustible particles are safely contained and not exhausted back into the environment.

The primary difference is the frequency of the explosive hazard. Zone 22 refers to areas where explosive dust is unlikely to occur in normal operation or only for short periods. Zone 21 is for areas where explosive atmospheres are likely to occur occasionally during normal work. While a Zone 21 (Category 2) machine can safely be used in a Zone 22 area, a Zone 22 (Category 3) machine must never be used in a Zone 21 environment.

If your facility handles combustible materials—such as wood dust, flour, sugar, or metallic powders—you are legally required under DSEAR (Dangerous Substances and Explosive Atmospheres Regulations) to conduct a risk assessment. If this assessment identifies "Zoned" hazardous areas, you must use a certified ATEX vacuum. Using a standard industrial vacuum in these zones is a major safety violation, as non-certified motors can act as an ignition source.

Yes. In food production environments, particularly flour mills, bakeries, and grain storage, the risk of a dust explosion is a critical safety concern. Fine organic powders—such as flour, sugar, starch, and cocoa—are highly combustible.When these powders become airborne in a concentrated cloud, a single spark from a non-certified vacuum motor or a static discharge from a plastic hose can trigger a catastrophic explosion.

Under DSEAR (UK) and ATEX (EU) regulations, food production facilities must be "Zoned" based on the frequency of these dust hazards. For these applications, we typically recommend Zone 22

As dust travels through a vacuum hose, it generates static electricity through friction. In a standard vacuum, this static can build up and "arc" (spark) to a nearby object. ATEX vacuums, like the Nilfisk ATTIX series, use conductive hoses and carbon-infused components to ensure all static is safely bled away to the earth, eliminating the risk of electrostatic discharge.