Combustible dust and DSEAR planning for powder filling projects.
Some powders can create dust clouds or deposits that require careful assessment before filling equipment, extraction, electrical equipment or room layout is selected.
Why dust needs early attention
Dust is not only a housekeeping issue. Some fine powders can create inhalation, contamination, fire or explosion risks depending on the product and process conditions.
In the UK, DSEAR requires employers to assess fire and explosion risks from dangerous substances, and HSE guidance also explains the need to control hazardous-substance exposure under COSHH. Equipment selection should therefore be informed by the customer’s product information and site assessment.
The machine supplier can help plan filling, feed and containment, but the duty holder must ensure the full workplace risk assessment is competent and site-specific.
Information to collect before specification
Review the safety data sheet, dust properties, particle size, moisture behaviour, minimum ignition energy data where relevant, extraction strategy and room classification requirements.
Record whether the product is dusty during filling, dusty during hopper loading, dusty only during cleaning or prone to deposits inside guards, conveyors and transfer points.
Consider whether the project needs local exhaust ventilation, product containment, anti-static measures, specialist electrical specification or a separate DSEAR review before ordering equipment.
Useful external guidance
For UK duty-holder background, see HSE guidance on DSEAR and HSE guidance on COSHH workplace exposure limits. Those documents do not replace a competent assessment for your product and site.
When an explosive atmosphere classification is required, the machine and installation should be specified from that assessment rather than guessed from the product name alone.
Key decisions to make before specification.
| Risk area | Questions to ask | Possible project implication |
|---|---|---|
| Product dust | Does the powder form airborne dust or deposits? | Extraction, containment, cleaning and guarding access |
| Combustibility | Is dust explosibility data available? | DSEAR review, zone assessment or specialist equipment specification |
| Exposure | Is the powder hazardous if inhaled or touched? | COSHH controls, PPE, extraction and cleaning method |
| Housekeeping | Where can dust settle during filling and changeover? | Access design, cleaning frequency and line layout |
Information to gather before you enquire.
This checklist helps Lancing review the project quickly and avoids a machine recommendation based on incomplete product or pack information.
- Safety data sheet reviewed
- Dust and explosibility data requested where relevant
- DSEAR responsibility agreed
- Extraction and containment needs considered
- Cleaning method reviewed
- Electrical and zoning requirements confirmed before order if applicable
Common questions about this topic.
Can Lancing declare my powder non-combustible?
No. Combustibility and zoning decisions require suitable product data and competent assessment by the duty holder or specialist advisor.
Does every powder filling project need ATEX equipment?
Not every project, but combustible dust risk must be assessed properly before equipment specification is finalised.
Should dust extraction be planned before buying the filler?
Yes. Extraction, room layout and hopper loading can affect the machine layout and practical operation.
Need help specifying a powder filling machine?
Send your product, pack format, fill target and output requirement and Lancing can help compare suitable auger filler options.