Key Engineering & Assembly Failure Modes
Mass and center of gravity
Part inertia can shift hardware within the pocket. Review clearance, support and orientation together.
Pickup and release
Holes, curved surfaces and pickup caps affect vacuum sealing. Check pickup, transfer, release and cap removal.
Feeder compatibility
Meeting packaging dimensions does not establish compatibility with every feeder. Record the equipment and trial conditions.
Packaging drawing and trial checklist
CUNECTRA STANDARD SPEC| Item | Drawing inputs | Validation records |
|---|---|---|
| Part/pocket | Shape, burrs, finish, clearance, tolerances | Orientation after transport, exit force, rotation |
| Tape/feeder | Width, pitch, sprocket holes, reel and feed direction | Feeder, speed, jams and splicing |
| Nozzle/cap | Pickup surface, material, removal method | Vacuum, pickup count, release offset, residue |
| Cover tape | Material, sealing settings, peel method | Peel distribution and storage/transport changes |
Design for Manufacturability Guidelines
Fix orientation first
Define direction using sprocket holes, a feed arrow and a distinctive part feature.
Trial representative parts
Include actual finishes, dimensional variation and production nozzles; record sample count.
Frequently Asked Questions
Does EIA-481 compliance guarantee use on every mounter?+
No. Confirm feeder, nozzle, center of gravity, program and line-trial results. A packaging standard is not a zero-defect guarantee.
Can a pickup cap pass through reflow?+
That depends on the cap, adhesive, actual thermal profile and removal requirements. Validate the selected combination.