Approve samples
Identify format, revision, finish, source, batch and known natural variation.
Evidence before commitment
Centrifugal feeder component trials.
Use representative parts and agreed acceptance criteria to turn feeding assumptions into observable production evidence.
Trial objective
Prove the difficult conditions, not one successful pass.
A valuable centrifugal feeder trial covers bulk loading, repeated circulation, component variation, sustained output, normal stops and recovery at the planned discharge condition.
Define output
Show the accepted orientation, tolerance, spacing and point at which the rate is measured.
Run sustained
Test beyond a short demonstration with realistic bowl level and normal replenishment.
Challenge faults
Observe full track, low level, blocked outlet, stop, restart and abnormal component states.
Record evidence
Capture rate, interventions, observations and open actions for the final specification.
Your sample set
Send the parts production will actually run.
Perfect samples can conceal the behaviours that determine system reliability. Include normal production variation, multiple batches and every expected component format.
- Enough quantity for a filled system and sustained test
- All sizes, materials, colours and revisions
- Normal mould flash, oil, dust and surface condition
- Parts from more than one batch where possible
- Approved drawings and orientation photographs
- Known nonconforming samples clearly identified
Test record
What the trial should capture.
The record becomes the technical bridge between the initial concept, detailed design and factory acceptance test.
Accepted output
Correctly orientated parts per minute at the stated discharge point and test duration.
Orientation yield
How consistently tooling selects correct parts and recirculates rejected states.
Recirculation effect
Whether repeat handling creates marking, tangles, dust, static or component damage.
Buffer stability
Track fill, back pressure, gap recovery and response to downstream demand changes.
Interventions
Every manual adjustment, jam clearance or refill needed during the test period.
Open actions
Remaining design questions, owners and the evidence needed before final acceptance.
Define the accepted discharge condition
“Correct orientation” must be observable. Mark the face, axis, leading feature, positional tolerance and gap that the receiving machine can accept. If the feeder hands off to a nest or gripper, include interface drawings and product contact constraints.
Agree a sustainable rate test
The test should state duration, sample quantity, normal replenishment, downstream simulation and permitted interventions. A high instantaneous count is not equivalent to stable production delivery.
Use trial results to write FAT criteria
The factory acceptance test should reflect the agreed component set and production boundary. Typical checks include rate, orientation, full-track response, low-level alarms, stop/restart, sensor faults, guard opening, changeover and documented actions.
Protect sample traceability
Label every sample container with part number, revision, batch, material and source. Retain approved parts for build comparison and record any later component changes so tooling is not judged against an unknown sample.
A trial closes specific questions
Where information is missing, the right output is a clearly recorded open action—not an optimistic assumption hidden inside the quotation.
Component trial FAQ
Prepare evidence that supports a decision.
How many samples are needed for a feeder trial?
The quantity must fill the working system, support recirculation and allow a sustained rate test with normal replenishment. The exact quantity depends on part size, bulk density, hopper capacity and test duration.
Should all component variants be included?
Yes. Include every size, material, colour, revision, mould cavity or supplier source expected in production. If one format is unavailable, that limitation should remain open rather than being assumed away.
What does a centrifugal feeder FAT include?
The agreed factory acceptance test may cover sustained accepted output, orientation, replenishment, full-track response, low-level recovery, blocked outlet, alarms, guarding, changeover and outstanding actions.
Can a few hand-picked parts prove the system?
No. A small quantity can reveal basic geometry but cannot demonstrate bulk behaviour, circulation, natural variation, buffer stability or sustained production output.