Fully automated machines require a __________.

Fully automated machines typically require a continuous-cycle reciprocation circuit to function effectively. This type of circuit allows for seamless and uninterrupted operation, which is essential for automation as it ensures that the machine can perform its tasks without stopping or waiting for input. The continuous cycle means that the machine can repeatedly perform its functions or operations in a fluid manner, catering to production demands and enhancing efficiency.

While a single-cycle cylinder circuit and a stop circuit can be components in specific automation systems, they do not accommodate the ongoing operational needs of fully automated machines as effectively as a continuous-cycle circuit does. Thus, the continuous-cycle reciprocation circuit is integral to achieving the desired performance and reliability expected from fully automated systems.