The AC 520 ARROW series is composed of automatic palletizers with mobile pallet, 90° layer transfer system and high level infeed conveyors. The system can be supplied with single (HS 1), double (HS 2) or triple infeed (HS 3). The layer forming device can be fitted with single (HS), or double pusher (HSD), with blocks BLOCKS) or with robots (M 1, M 2). This machine type is ideal for automatic palletization of cases and bundles at high speeds. The system automatically regulates the machine for different product sizes.