According to the classification of structure, hydraulic presses mainly include single-column hydraulic presses, four-column hydraulic presses, frame hydraulic presses and other hydraulic presses.

The single-column hydraulic press can be divided into two structures: the whole body and the combined body. During the work of the single-column hydraulic press, due to the deformation of the body, the slider and the table will have a certain angle, so it is mostly used for low precision requirements. applications, such as: press-fitting, sheet pressing, straightening and other processes.

The four-column hydraulic press connects the upper and lower beams through four columns, and the movable beam with sliders is guided by the four columns. The machine has the characteristics of simple structure and low manufacturing cost, so it is used.

The frame hydraulic press replaces the cylindrical column in the four-column hydraulic press with a welded frame column. The guide of the slider is guided by the guide rail fixed on the column, which has the advantages of high guiding precision and large anti-eccentric load capacity, but the manufacturing cost is higher than that of the four-column hydraulic press. In occasions with high precision requirements, such as metal sheet stamping, metal precision forming and other processes.

The above three hydraulic presses account for more than 95% of the total number of hydraulic presses. According to different needs. In addition, there are various other hydraulic presses with special structures, such as: multi-column, multi-directional, horizontal, gantry and other hydraulic presses.