How do I automate dosing, sealing and coding for paste sachets?
Practical guidance for paste sachets: automate the limiting operation without creating a new bottleneck.
Direct answer
For paste sachets, measure the present bottleneck and labour content before changing several settings at once. This is a flexible-pack application where film construction, pack opening, dosing, contamination control and the sealing window determine output and integrity for paste sachets. Seal-area contamination, product temperature and laminate compatibility require representative trials.. Use representative product and packaging, keep the order of results and identify the first point where the process moves outside the agreed limit. Then make one controlled change, repeat the same test and compare sustained good output rather than a single successful pack.
Sachet Filling Machines
Small-format sachet filling.

What usually causes this?
- the current bottleneck has not been measured
- automation is added around an unstable manual process
- feeding and accumulation are underestimated
- operators, maintenance and exception handling are not included in the design
- the equipment or method is not configured for a flexible-pack application where film construction, pack opening, dosing, contamination control and the sealing window determine output and integrity for paste sachets. Seal-area contamination, product temperature and laminate compatibility require representative trials.
Checks to make in order
- Measure the present bottleneck and labour content
- Stabilise the current method before automating it
- Define normal and abnormal product presentation
- Include feeding, buffering, rejects and replenishment
- Map operator and maintenance access
- Model phased and full automation options
- Test sustained output and recovery from stops
How to decide the next step
Paste sachets is a flexible-pack application where film construction, pack opening, dosing, contamination control and the sealing window determine output and integrity for paste sachets. Seal-area contamination, product temperature and laminate compatibility require representative trials.. Use the measurements to decide whether the next action is a material or packaging change, a setting correction, a maintenance task, improved feeding or a different machinery principle.
If the process cannot achieve the required moving to automation result across the full product and pack range, compare the best-matched route against a written acceptance test. Include cleaning, changeover, operator work, rejects and recovery from normal stops.
What to include in your production brief
Supplying the information below makes it easier to distinguish a setup problem from a product, packaging, feeding, maintenance or machinery limitation:
- Finished pack or rollstock samples
- Film laminate and sealing layer
- Pack dimensions and target dose
- Product flow, dust, oil and particle behaviour
- Seal width and integrity test
- Output, coding and secondary-pack requirement
- Samples that represent paste sachets
- A short video of the present process and fault
Relevant solution websites
The first route is the primary match for this question. Final suitability must be confirmed with samples, output, site and acceptance information.
Related questions
Flexible packagingHow should I inspect paste sachets?
Practical guidance for paste sachets: define a good pack and how defects will be detected and handled.
Read the answer →
Flexible packagingHow do I prevent repeated faults with paste sachets?
Practical guidance for paste sachets: turn recurring faults into controlled inspection, service and replacement actions.
Read the answer →
Flexible packagingHow do I move from hand packing to automatic production of paste sachets?
Practical guidance for paste sachets: move from manual to semi-automatic and automatic production in sensible stages.
Read the answer →
Flexible packagingHow do I automate dosing, sealing and coding for pet-food pouches?
Practical guidance for pet-food pouches: automate the limiting operation without creating a new bottleneck.
Read the answer →
Flexible packagingHow do I automate dosing, sealing and coding for pillow bags?
Practical guidance for pillow bags: automate the limiting operation without creating a new bottleneck.
Read the answer →
Flexible packagingHow do I automate dosing, sealing and coding for powder sachets?
Practical guidance for powder sachets: automate the limiting operation without creating a new bottleneck.
Read the answer →