The utility model relates to the technical field of metallurgical oil cylinders, in particular to a
hydraulic cylinder for
metallurgy, which comprises a cylinder body, a cylinder cover, a
piston rod, an anti-deviation component, a wiping component and a linkage component, the cylinder cover is mounted at the top end of the cylinder body, the
piston rod is arranged in the cylinder body, and the top end of the
piston rod extends out of the cylinder body. The top end of the deviation preventing
assembly is connected with the top of the
piston rod, the middle of the deviation preventing
assembly is connected with the top of the cylinder body, the deviation preventing
assembly comprises a plurality of guide rods, the wiping assembly is installed on the top face of the cylinder cover and arranged on the
piston rod in a sleeving mode, the wiping assembly comprises a wiping ring, and the wiping ring makes contact with the outer wall of the
piston rod. The guide rod is connected with the wiping ring through a linkage assembly; the
hydraulic cylinder for
metallurgy is simple in structural design, has anti-deviation and cleaning functions and can be mechanically locked.