Product feed
Thick products may need an elevated hopper, transfer pump, follower plate or controlled pressure to keep the dosing chamber supplied.
Bottle filling applications
Viscous products need a filling route that controls feed, trapped air, particles, temperature and nozzle cut-off while remaining practical to clean between batches.

Application engineering
A laboratory viscosity or marketing description is not enough. The filler should be reviewed using product at the normal process temperature, representative bottles and the planned supply method.

Application risks
These factors often decide the filling principle, nozzle design, cleaning route and automation level.
Thick products may need an elevated hopper, transfer pump, follower plate or controlled pressure to keep the dosing chamber supplied.
The nozzle and valve must stop the product cleanly enough to protect the neck, seal and label area.
Herbs, seeds, fibres or pieces can restrict valves and nozzles and change dose consistency.
Honey, waxy creams and similar products may need controlled heat or mixing where the formulation allows it.
Recommended starting routes
The table is a shortlist for discussion; trials and detailed engineering determine the final machine.
| Product or production need | Starting approach | Next page |
|---|---|---|
| Piston volumetric filling | Measured positive displacement for a broad range of sauces, creams and gels. | Explore route |
| Semi-automatic paste filling | Hopper-fed operator-loaded filling for short runs and frequent changes. | Explore route |
| Automatic multi-head paste filling | Conveyorised, recipe-controlled production with bottle indexing and clean cut-off. | Explore route |
| Positive-displacement pump filling | A pump route for suitable formulations and continuous product supply. | Explore route |
Project information
Clear samples and measurable requirements create a faster, more reliable machinery comparison.
Send specification, SDS where applicable, viscosity range and representative samples.
Provide every bottle, closure, insert and label format—not only the easiest size.
State output by volume, batches, shifts, operators, cleaning and changeovers.
Agree test media, samples, rate, tolerances, documentation and line interfaces.
Questions
Application-specific answers for early project planning.
Some large-bore valves and nozzles can handle particles, but product samples are essential. Piece size, shape and concentration must remain within the agreed path.
Air pockets, temperature, product separation, inconsistent hopper feed and stringing can all change the delivered amount or the measured weight.
They can be considered for suitable formulations, with appropriate control and guarding. Product safety and quality limits must be defined by the user.
Cleaning may involve draining, flushing, product recovery and dismantling of hopper, cylinder, valves, hoses and nozzles. The required method should shape the machine design.
Send product data, representative bottles, closures, fill range and output. Lancing Ltd can identify the most credible filling route.