Inserta is a bench-top system designed to automatically insert pistons into single- or dual-syringe packages. The system eliminates two problems that normally occur when trying to place pistons into cartridges: entrapment of air under the pistons; and inconsistent piston insertion depth and alignment. The unit features pneumatic operation, individual adjustment for insertion depth, automatic sequencing, and an auto guidance system that ensures that the cartridges and pistons are located properly each time.