1. According to the direction of guidance, it is divided into: sliding guide column (code SGP), rolling guide column (code SRP).

2, according to the installation method is not the same, divided into: loading and unloading guide column and press-in guide column.

3. The guide columns are classified according to the place of use, and are divided into: guide columns for automobile molds, independent guide columns, guide columns for mold frames, and guide columns for discharge plates.

The guide post is a guide element used in the mold in combination with the assembly to ensure that the mold guides the mold stroke with precise positioning. Generally, it is cylindrical with a shoulder. Generally, there will be oil grooves. The number of oil grooves of the mold increases with the length of the guide columns. The maximum number of oil grooves is generally eight.