Product path
Inspect bulk feed, dispersion, feed trays, hoppers, discharge and the pack opening for starvation, build-up or blockage.
Start with evidence
Record the symptom, time, product and machine state before changing settings.
Identify whether the issue is constant, intermittent, linked to refill, linked to one product batch or triggered by the downstream packer. Save the recipe and current settings before making a controlled change.
Weight data
Review individual pack weights, mean, spread, rejects and trends by time rather than one or two readings.
Line states
Check whether the weigher is waiting for product, waiting for the packer or repeatedly recovering from a fault.
Symptom-led checks
Investigate the likely area before adjusting the recipe.
| Symptom | Possible causes to check | Evidence to collect |
|---|---|---|
| Unstable weights | Feed variation, product build-up, vibration, calibration, external vibration, discharge loss | Weight trend, hopper readings, refill events and product observations |
| High giveaway | Large portions, poor population, target settings, rejected combinations, check method | Mean, spread, portion data and sustained sample |
| Slow output | Product starvation, slow combination, packer waiting, blockage or downstream stop | Cycle-state and waiting-time record |
| Product damage | High vibration, collisions, long drops, hopper operation or blocked chute | Before-and-after samples and video of the product path |
| Bridging or sticking | Surface finish, product moisture/oil, feeder angle, hopper geometry or build-up | Inspection over time and cleaning frequency |
| Product in seal area | Incorrect timing, long drop, pack not ready, poor settling or overfilled opening | Slow-cycle observation and finished-pack inspection |
| Frequent faults after restart | Uncleared product, wrong reset sequence, missing pack or unsynchronised demand | Alarm history and witnessed recovery sequence |
Controlled adjustments
Change one relevant factor, run enough cycles to see the effect and record the result. Keep a known-good recipe and avoid compensating for a mechanical feed or packer problem with unrelated weighing settings.
When to stop and escalate
Stop if safe access, guarding, electrical integrity, compressed air, structural support or hazardous product control is in doubt. Maintenance should follow safe isolation procedures and competent site rules.
Support information
Send enough detail for the symptom to be reproduced.
Provide the machine identification, product, target, recipe, recent changes, alarm history, photographs or video, weight data and the exact point in the cycle where the issue occurs. Do not include passwords or private network credentials.
Technical support
Give Lancing a clear problem statement and evidence.
The information can be used to separate product, setup, mechanical, controls and downstream causes before parts or site work are proposed.
Request technical guidanceBuyer questions
Frequently asked questions about this application.
Why are weights stable at first and worse later?
Product build-up, refill behaviour, temperature, batch variation or changing product level may only appear during a sustained run.
Why is the weigher waiting?
It may be waiting for bulk product, a valid combination, a pack-ready signal or downstream clearance. Cycle-state evidence is needed.
Should vibration be increased when output is low?
Not automatically. Higher vibration can create larger portions or product damage. First identify where the cycle is waiting.
What should be sent for remote diagnosis?
Send machine identification, product and target, recipe, alarms, recent changes, weight data, photographs or video and the cycle stage where the issue occurs.
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