Extend cylinder for Terex RT 555-1

The extend cylinder 720 0109 serves as a hydraulic actuator within the telescopic boom system of the crane. Its primary function is to convert hydraulic fluid pressure into the mechanical force necessary to extend and retract the boom sections, allowing the operator to adjust the machine's reach, operating radius, and lift height during lifting operations.

This component is engineered for fitment on the Terex RT 555-1 rough-terrain crane. It operates within the hydraulic circuit to provide controlled, linear motion to the boom structure. The cylinder assembly includes the main tube, piston, and rod, which work together to manage the extension cycles of the crane's boom.

Hydraulic cylinders of this type are used in heavy machinery to provide precise movement under load. They rely on internal seals to maintain hydraulic pressure and prevent fluid bypass, ensuring that the boom remains stable at the desired extension length. Proper operation of the cylinder is necessary for the overall functionality of the telescopic boom mechanism.