Specification focus
A cap feeder problem often starts before the jam point.
Cap feeder faults usually appear at the capping head, but the root cause may be earlier in the route. A cap can be unstable in the hopper, fail to separate in the bowl, bounce in the chute or arrive at the handover point at the wrong time.
Troubleshooting should start by identifying the symptom: starvation, flooding, wrong orientation, caps wedged in the track, caps bouncing out of guides or inconsistent pickup by the capper. Each symptom points to different mechanical or control checks.
If the problem appears after a cap, bottle or speed change, review the changeover settings and whether the feeder was originally tooled for the new closure.
StarvationCheck hopper level, bowl tuning, cap flow, sensors and the feed-rate margin above line speed.
OverfeedingCheck level control, chute capacity and whether caps are being pushed into the capper faster than it can accept.
Wrong orientationCheck reject tooling, cap balance, worn guides and whether the closure has changed.
Handover faultsCheck chute angle, capper timing, bottle stability and cap pickup position.
