Medium and small packaging factories need affordable automatic rejection equipment to cooperate with inline detection sensors, without overinvestment on high-end rotary ejectors.High speed piston kicker is an economical matched rejection unit for KQ detection sensors, suitable for medium-speed folder gluer production lines below 180m/min. After receiving NG signals from glue detectors, code readers and vision systems, the piston quickly pushes defective cartons to the waste channel.Adjustable piston stroke and ejection force adapt to various carton thicknesses including cosmetic thin boxes, food color boxes and daily commodity packaging. Simple mechanical structure brings easy maintenance and low spare part cost, ideal for small-batch and multi-style printing factories to realize full automatic inspection and rejection.