Which component allows for 360 degree rotation of the boom in a hydraulic system?

The component that allows for 360-degree rotation of the boom in a hydraulic system is the collector block. This component is designed to house the necessary hydraulic valves and provide a pathway for hydraulic fluid, enabling controlled movement of the boom. The collector block typically allows for fluid to be directed in multiple directions, which is essential for achieving the rotary motion needed for full rotation.

In contrast, while the poppet valve is important for controlling fluid flow within the system, it does not facilitate rotation. The reserve tank plays a role in storing hydraulic fluid and maintaining system pressure but does not directly contribute to the boom's rotational ability. The hydraulic cylinder is responsible for linear movement and extending or retracting parts of the system but lacks the capability for continuous rotational motion. Therefore, the collector block is the crucial component that enables smooth and unrestricted 360-degree rotation of the boom in a hydraulic system.