Indexing conveyors are a type of accumulation system. Advancing the conveyor in steps can be achieved with a variety of drive and control options. They Create specific spacing between parts, Position products accurately for interface with robotics or other machines, Meter products into the next operation. These systems accumulate product by indexing it onto a belt, one box at a time, using a clutch/brake assembly, photoeye sensors, and a sophisticated computer-operating program. Indexing belts are not as efficient in filling up a line as other types of accumulation, but they don’t care about varieties of product weights and sizes. An operating programmable logic controller (PLC) is required to apply this technology. Also, air operated clutch/brakes are recommended over electronic clutch/brakes because of their reliability.