Viscous, sticky, stringy, hot or particulate products
Use this page when your product is too thick, sticky or variable for a simple liquid filler and you need a cleaner, more repeatable route than hand filling.
buyer search
Product sample review for paste filling machines.
A product sample or video helps confirm how the product flows, cuts off and cleans before a filling machine is specified.
Buyer intent
Choose around your product, container and output.
The right paste filler depends on how the product moves, how cleanly it cuts off, how accurately it must dose and whether the production route is manual, semi-automatic or automatic. Send product and pack details before you buy so the machine is specified around the real filling problem.
Jars, bottles, tubs and trial packs
Container opening, stability, shoulder shape, fill height and closure style affect the filling head, line layout and operator access.
Sample-led paste filler selection
The correct route may be a compact semi-automatic filler, a piston or pump-fed system, or a conveyorised automatic line with capping and labelling.
Specification points
Check these before asking for a quote.
- Product viscosity, temperature, stringing and whether it contains pieces or fibres.
- Fill volume, dosing accuracy, container opening and required finish around the rim or neck.
- Output target, operator involvement, cleaning routine and changeover frequency.
- Whether the project needs filling only or a complete line with capping, labelling and coding.
Practical details
Send the details that decide the filler.
A useful enquiry includes product type, fill volume, container dimensions, closure, photos of the pack and the output you want to achieve. This helps avoid under-specifying the filler or adding unnecessary automation.
- Product behaviour: thick, sticky, stringy, aerated, hot-filled, particulate or settling.
- Pack details: jar, bottle, tub, cartridge or pail size plus closure style.
- Production goal: batch size, containers per minute, cleaning regime and future upgrades.
The aim is to match the filling method to the production problem instead of forcing the product through the wrong type of liquid filler.
Decision factors
What affects the final machine choice?
Small changes in product behaviour or pack style can change the correct filler, nozzle or line layout.
Viscosity
Thicker products often need positive displacement rather than gravity filling.
Cut-off
Sticky or stringing products may need a nozzle that closes cleanly.
Cleaning
Food, cosmetic and contract packing projects need practical access for cleaning and changeover.
Output
The required containers per minute decides whether semi-auto or automatic is realistic.
Quick answers
Product sample review for paste filling machines FAQs.
Is this suitable for viscous, sticky, stringy, hot or particulate products?
Suitability depends on viscosity, fill volume, product behaviour, container opening, cleaning needs and target output. Send product and pack details so the correct filling route can be reviewed before quotation.
What details should I send for a quote?
Send the product name, fill volume, container dimensions, closure type, target output, cleaning requirements and photos or videos of the product and pack.
Can it be integrated with capping and labelling?
Yes. The filler can be planned as a stand-alone machine or as part of a line with conveyors, capping, labelling, coding and accumulation.
Related pages
Compare closely related options.
These pages help narrow the machine route before you send project details.
Paste Filling Machine Demonstration UK
Compare this related paste filling route before you request a quote.
View page →Paste Filling Machine Specification UK
Compare this related paste filling route before you request a quote.
View page →Paste Filler Quote UK
Compare this related paste filling route before you request a quote.
View page →Need help choosing the right paste filler?
Send your product, container, fill volume, closure and target output. Lancing can help compare the practical options before quotation.
Sample trial protocol
Run a recorded test that can be repeated at factory acceptance.
A product trial should answer whether the selected filler can prime, dose, cut off, handle the pack and clean down under representative conditions. The test plan should be agreed before samples are sent so enough product and containers are available.
Identify the product conditionRecord batch, temperature, time after mixing, particles, aeration and any settling or thickening.
Prime to stable productionRecord product used to fill the path and exclude unstable start-up containers from the accepted sample.
Run repeated fillsUse the target dose, production containers and intended operator or conveyor cycle.
Inspect cut-off and packCheck drips, strings, neck cleanliness, particles, bubbles and container stability.
Measure output and quantityState sample count, measurement method, timed run length and any rejects or interruptions.
Demonstrate clean-downRecord product recovery, parts removed, cleaning process and restart to the next accepted fill.
Paste filling machinery in operation. The final acceptance trial should use the buyer’s representative product, container and agreed machine configuration.
| Recorded item | Minimum detail | Why it matters |
|---|---|---|
| Product | Batch identity, temperature, particles and preparation history. | Makes the result reproducible. |
| Machine | Cylinder or pump, nozzle, head count, settings and product supply. | Defines the tested configuration. |
| Pack | Container and closure reference, dimensions and opening. | Links cut-off and handling to the real format. |
| Quantity result | Target, samples, measurement method and variation. | Supports an evidence-based accuracy statement. |
| Output result | Good packs over a timed period, including normal indexing. | Avoids quoting only a theoretical fastest cycle. |
| Cleaning result | Recovery, strip-down, cleaning, verification and restart time. | Confirms operational fit for the production schedule. |
Acceptance boundary
Write down what the trial proves and what remains site-dependent.
A factory trial can prove the tested product and pack under the recorded conditions. It does not automatically prove every future SKU, ambient temperature, utility condition or operator practice.
Proved
The specified product, dose, pack, configuration and recorded test result.
To reconfirm
Other products, ranges, particles, temperatures, containers and closures.
Site-dependent
Utilities, product supply, operator method, cleaning facilities and downstream line balance.
Trial FAQs
Questions for product sample testing.
How much product should be sent?
Enough to prime the complete path, adjust settings, run repeated fills and demonstrate drain-down or cleaning. The quantity should be agreed for the selected machine before shipping.
Which product sample should be used?
Use a representative production batch and include the most difficult normal condition, such as the coldest product, largest particles or highest expected viscosity.
How many containers are needed?
Enough for setup, rejected start-up fills, repeated measurement, output testing and spare samples. Include minimum and maximum formats where both are in scope.
Can accuracy be confirmed from a few hand-filled samples?
No. Accuracy should be assessed over an agreed sample count after the machine has reached stable operation, with product condition and measurement method recorded.
Should cleaning be part of the trial?
Yes when changeover, allergen control, curing, colour carryover or product waste is commercially important. Use the intended cleaning method where practical.
What happens if the product changes after the trial?
Changes to formulation, temperature, particles or density can affect the result. Material changes should be reviewed and may require another test or revised settings.
Trial-to-acceptance traceability
Carry the successful sample-test conditions into quotation and FAT.
Record the product batch, temperature, time since mixing, hopper or feed arrangement, valve, nozzle, settings, container, sample sequence and measurement method. A later machine test should be able to reproduce these conditions or explain any approved change.
Retain reference samples
Keep accepted filled packs, photographs or controlled quality records where shelf life and product handling permit.
Record limits
State which products, temperatures, particles, doses or packs were not tested and remain subject to confirmation.
Convert findings into requirements
Transfer the proven product-path, nozzle, feed and acceptance conditions into the machine specification and FAT protocol.
Use the specification guide and factory acceptance test guide to preserve the trial evidence through the order.
Product-trial questions
Questions that make sample testing representative and repeatable.
A sample trial should reproduce the conditions most likely to challenge the filler and should leave a record another person can understand. The questions below help prevent a successful demonstration from being mistaken for evidence of the full production duty.
Should a trial use freshly mixed product or product that has been standing?
Use the condition that represents normal and boundary production. If the product settles, thickens, cools, aerates or develops a skin while standing, include that state as a separate test condition. Fresh product alone may prove the easiest case while missing the behaviour that causes production stops.
Which pack defects should be recorded during a paste filling trial?
Record underfill or overfill, air pockets, splashing, product tails, neck or rim contamination, damaged particles, unstable containers, trapped product around the closure area and any delayed settling. Use photographs and sample IDs so the defect can be linked to the cycle, settings and product condition.
How should trial data be separated by nozzle or cycle?
Identify each nozzle and keep sequential results in run order. This shows drift, start-up effects and a single head that differs from the group. Record adjustments, product replenishment, stops and restarts alongside the data so an average cannot hide when or where variation occurred.
When should a second product trial be planned?
Plan another trial when the first test used non-production product or containers, did not cover a boundary condition, exposed a product-path change, or left an acceptance point unresolved. A second test should close a defined evidence gap, not simply repeat the same convenient demonstration.
Use the guides to air pockets, settling products and finished-pack cleanliness when building the trial record.
Need to define a representative trial?
Send the hardest normal product condition, production packs, target dose and the defects that would make a filled pack unacceptable.
Sample quantity and trial record
Send enough product to prime, tune, measure and repeat the hardest normal condition.
The useful quantity depends on hold-up in the hopper, hose, cylinder, valve and nozzle; the number of planned fills; the dose size; and whether cleaning or changeover observations are part of the trial. A single container of product may prove that the machine moves, but not that it runs consistently.
Build the sample quantity from five parts
- Priming allowance: enough product to fill the complete wetted path without drawing air.
- Adjustment allowance: product for setting stroke, timing, nozzle position and cut-off.
- Measurement sequence: repeated fills at each agreed target rather than one demonstration dose.
- Hard-condition run: the coldest, warmest, most particulate or most settled normal condition that matters.
- Reserve: product for a repeated check if the first setup reveals a correctable issue.
Trial report fields
Keep the result reproducible.
- Batch identity, product age and temperature.
- Mixing, settling and transfer history.
- Machine, cylinder, valve, nozzle and settings.
- Container and closure references.
- Sequential results, cut-off observations and rejected fills.
- Cleaning, recovery and remaining open questions.
Measurement plan
Bring the pack-check method into the product trial.
Supply enough empty packs to establish a sensible tare method and run consecutive filled samples. If the machine doses volumetrically but results are checked by mass, record the density basis and product temperature used for the comparison.
Need a trial protocol that can support acceptance?
Define the product, pack, target, measurement equipment, sample sequence and decision limits before the test date.