This device deposits a layer of powder on the main belt of the CONTINUA+ line. It can be used to deposit the base powder. However, if installed downstream from another feeder, it can deposit a layer of material different from the one deposited upstream. The APB is fed with plain color powder while the APBM variant also has a device that can mix 4 colors. It can be used to deposit both a full-body layer or a surface layer.