If the cylindrical grinder wants to achieve closed-loop control, it can be achieved by using an active outer diameter measuring instrument or an inner diameter measuring instrument. It can enter the semi-automatic cut-in grinding or longitudinal grinding through fixed distance or automatic measurement control. In this way, small batches or batches of parts can be carried out. Its grinding function and processing action can be controlled by PLC. The bed is a monolithic structure, the internal ribs are arranged in a box shape, and are cast with high-strength low-alloy inoculated cast iron, and have been treated with reasonable effects. They have high overall rigidity and strength, which can meet the requirements of high-precision equipment for basic parts. Requirements.