四柱液压机精度是指及其本身的精度，它主要包括个执行机构模具安装几面的不平度；各执行机构相对于工作台面（四柱液压机基准面）的不平度和不垂直度等相对位置精度。
The accuracy of the four-column hydraulic press is also the same as the accuracy of any machine tool. It is determined by the accuracy requirements of the processed workpiece and the motion accuracy requirements of the pressing process. Low precision will reduce the precision of the parts, and even make the mold premature damage. Too high precision will increase the manufacturing cost. Therefore, it is very important for four-column hydraulic press manufacturers to reasonably formulate precision items and requirements.
Four-column hydraulic press main accuracy requirements:
1. Parallelism of worktable (0.05 in length of 1000mm)
2. Parallelism of the lower plane of the movable beam
3. Parallelism of movable beam to working surface (0.20)
4. Verticality of movable beam stroke to workbench (0.30)