Plockmatic BST4000 is an industrial, belt-based exhibiter/aggregator-stabler (belt delivery/sticker unit) from Swedish Plockmatic. It is used at the end of staples, false lines, interlocking or digital finishing plants to collect, overlay overlay or stack completed brochures, booklets and sheet stacks. The BST4000 series is characterised by its stepless speed control, self-propelled transport belts and adjustable inlets that prevent new-produced tripods from emerging or being marked.