Specification focus
Plastic caps need the right track behaviour, not just more vibration.
Plastic closures are lightweight, fast-moving and sometimes easy to scuff or misorientate. Feed design has to consider material finish, cap balance, tamper features and the downstream capping method.
A plastic cap feeder can use a bulk hopper, elevator, vibratory bowl, sorter, chute or a combination of these routes. The correct option depends on how the cap separates and what orientation the capper needs.
Where the closure is cosmetic or decorated, sample testing helps check marking, edge damage and visual finish.
Lightweight closure controlAvoid bouncing, bridging and inconsistent queue pressure.
Finish protectionLiners and careful tooling can help reduce marking risk.
Format flexibilityPlan early if the same line will run multiple cap sizes.