Positive displacement
Automatic piston filling
A configured piston or pump route for repeatable filling of compatible viscous products.
View solutionViscous hazardous products
ATEX Filling Machines for Paints, Coatings & Adhesives
Control viscosity, stringing and nozzle cut-off when filling solvent-based paints, coatings, adhesives and sealants in a classified area.
Application factors
What matters when choosing your machine.
1
Viscosity
Product thickness and temperature influence piston size, pump selection, fill speed and product feed.
2
Stringing and tailing
Shut-off, anti-drip or suck-back nozzles can help control strands and messy cut-off.
3
Solvent content
Flammable carriers may require hazardous-area assessment even when the finished product is viscous.
4
Abrasiveness and curing
Fillers, pigments and curing behaviour can affect valves, seals, cleaning and maintenance.
5
Pails and cans
Heavy, open or handled containers need stable positioning and practical lid or cap application.
6
Cleaning and changeover
Residue, curing and multi-colour production make access and cleaning strategy critical.
Machinery shortlist
Machine options that may suit your production.
Large packs
Bucket and drum filling
Weigh filling and diving-nozzle options for pails, cans and larger industrial packs.
View solutionComplete line
Fill-cap-label integration
Plan closure application, labelling and conveying with the filler from the start.
View solutionQuote checklist
Send these details for a focused recommendation.
- Full formulation, solvent content, viscosity range and temperature
- Stringing, particles, abrasiveness and curing time
- SDS and hazardous-area classification
- Pail, can, cartridge or bottle dimensions
- Target fill range and tolerance
- Nozzle cut-off, cleaning, colour change and product recovery
- Lid pressing, capping, labelling and conveyor requirements
FAQs
Questions about filling paints, coatings & adhesives.
Can piston fillers handle adhesives and sealants?
Some can, but stringing, curing, abrasiveness, solvent content, viscosity and cleaning must be assessed against the valve, seals, cylinder and nozzle.
Do solvent-based pastes need an ATEX review?
Yes. Solvent-based or flammable formulations may require hazardous-area assessment and additional controls even when the product is thick.
Can the hopper be heated or mixed?
Heating and agitation can be considered where technically appropriate, but temperature, ignition risk, product stability and cleaning must be included in the design review.
Your machine recommendation
Tell us what you need to fill — we’ll recommend the most suitable machine.
Send your product SDS, container details, fill range, target output and any ATEX information. You’ll receive a practical shortlist matched to your application.
☎ 01494 623015✉ sales@lancinguk.comDirect support for new machines, line upgrades and complete filling projects.
Product behaviour
Control viscosity, stringing and solvent release at the real production temperature.
Paints, coatings, resins, sealants and adhesives can change significantly with temperature, batch age and shear. A useful trial records the condition of the sample and tests the nozzle, valve and product supply at the intended dose and sustained rate.
Dosing and nozzle selection
Positive-displacement piston or pump filling may suit many viscous products, but abrasives, particles, curing behaviour and solvent content affect the choice. The nozzle must close cleanly enough to control strings and drips without excessive pressure or product damage.
Heating, agitation or recirculation can be considered where technically appropriate, but each adds surfaces, drives, controls and cleaning requirements to the ignition-risk and compatibility review. The machine should not heat a product beyond the conditions used in the SDS and site assessment without a specific engineering decision.
Containers, closures and clean-down
Test the smallest neck opening and the least stable pack, together with the heaviest intended dose. Pails, tins, cartridges or bottles may need different centring, nozzle travel and transfer. Lids and caps should be included because open-container travel can influence vapour and contamination control.
Define pot life, cure risk and the maximum time product may remain in the system. Cleaning should identify flush media, dismantled parts, dead legs, retained product and waste. Where the solvent or flush medium is flammable, clean-down is a separate hazardous operating mode.
| FAT observation | Acceptance basis |
|---|---|
| Fill profile | Product temperature, pressure, speed, nozzle position and result for each target quantity. |
| Stringing and drip | Agreed visual or measured condition before the pack moves to closure application. |
| Product recovery | Drainability, retained quantity, flush route and time needed to reach the agreed clean state. |
| Changeover | Required tools, settings, parts, recipe control and verification before restart. |
Should the trial use the highest-viscosity batch?
The trial plan should cover the credible operating range, including the most demanding viscosity, temperature or stringing condition where practical. One easy-flowing sample should not be used to qualify a materially different production case.
Can a heated hopper be used in a hazardous area?
Heating may be possible, but the temperature control, hot surfaces, equipment protection, product stability and failure conditions require specific assessment. It should never be added as a generic option without the declared zone and temperature requirements.
How is nozzle stringing accepted at FAT?
Agree the product condition, dose, cycle rate, nozzle type and observable acceptance limit before the test. Record any string, drip or contamination after cut-off and confirm that the next capping or transfer stage remains reliable.
For non-hazardous viscous filling in general, broader technology ownership sits with volumetricfillers.co.uk and liquidfillers.co.uk. This page retains the solvent and hazardous-area focus.