Component family
List every size, drawing revision, material, finish, mass and known difficult variant.
Engineering and procurement guide
Select a step feeder from the hand-off backwards.
Start with the part condition the receiving process needs, then work backwards through release, buffering, orientation, elevation and bulk storage. This prevents a fast feeder being specified without a reliable production interface.
Representative production equipment; final feed path and guarding are application-specific.
Selection sequence
What information selects a step feeder?
The minimum useful brief defines the complete component family, normal bulk condition, accepted orientation, sustained output, buffer requirement, footprint, loading method, environment and downstream controls. Samples turn assumptions into measurable evidence.
Eight-point checklist
Make supplier responses comparable.
Issue the same application pack to every supplier and require assumptions, exclusions, test conditions and the proposed acceptance method to be stated. A shared brief reduces scope gaps and quotation ambiguity.
Bulk presentation
Describe oil, dust, tangling, bag set, mould variation, return parts and refill batch size.
Accepted hand-off
Show axis, face, pitch, datum, height, tolerance and whether pick-up or positive transfer follows.
Sustained demand
Specify accepted parts per minute, peaks, buffer time, shift pattern and downstream stoppages.
Autonomy
Define hopper capacity, refill interval, low-level warning and preferred operator loading height.
Site constraints
Record footprint, access, noise objective, power, air, guarding and environmental requirements.
Acceptance planning
Agree success before design freeze.
Define the sample mix, trial duration, permitted interventions, accepted rate, orientation quality, jam recovery, changeover procedure and evidence format. FAT should reproduce the important production conditions.
SamplesProduction-representative quantities, including normal variation and known difficult components.
Drawing and photosCurrent drawing plus clear images of bulk condition and the exact accepted orientation.
Interface scheduleElectrical and pneumatic supply, PLC protocol, ready/demand/fault signals and safety boundaries.
Acceptance planTest duration, rate calculation, intervention rules, rejects, changeover and documentation required.
Straight answers
Step feeder selection guide questions
There is no universal quantity. Enough parts are needed to reproduce realistic bed depth, variation, recirculation and test duration. The supplier should confirm the required quantity after reviewing the application.
Specify sustained accepted output plus known peaks and downstream stops. This allows buffer capacity and control logic to be sized correctly.
The exact accepted hand-off condition: orientation, datum, pitch, discharge height and tolerance. A photograph or marked-up drawing prevents interpretation errors.
Before design freeze and ideally at quotation stage. Early agreement aligns tooling, sample quantities, controls and evidence with the final acceptance test.
Application review
Turn the search into a tested production answer.
Send representative components, drawings, required orientation, sustained output and receiving-machine details. Sortation Solutions will review the feed path and recommend the next engineering step.