Below is a list of Heavy Duty Hydraulic Cylinders manufacturers from Rockford, Illinois. Heavy duty hydraulic cylinders are actuation devices made to withstand the wear and pressures endured by machines and equipment in the most arduous industrial environments. These cylinders lift, push, pull, tilt, turn, press and steer mechanical linkages and any attached loads for cranes, forklifts, excavators, lift gates, elevators, heavy duty vehicles, wind turbines and many other powerful pieces of equipment.