The CGH1 MF3 100-70-340 hydraulic cylinder is a heavy-duty mill-type hydraulic actuator designed for stable and reliable power transmission in industrial machinery, integrating the functional advantages of multiple cylinder structures to meet diverse working demands. It supports flexible configuration as a linear reciprocating telescopic oil cylinder to deliver smooth and powerful straight-line push-pull action, can be adapted to function as a rotary swing telescopic oil cylinder for controlled angular swinging motion within limited angles, and also adopts a compact and durable sleeve type telescopic oil cylinder structure to achieve extended stroke output within a limited installation space. With a bore of 100 mm, rod diameter of 70 mm, and stroke of 340 mm, this cylinder features robust construction, high-pressure resistance, excellent sealing performance, and stable operation, making it widely applicable in heavy machinery, engineering equipment, machine tools, and other hydraulic systems that require reliable linear or swing telescopic actuation with long service life and low maintenance.