The grinding equipment requires high performance control system to transmit stable, precise pressure which is used to compress thegrinder at right position.For some special cases, such as glass surface, the pressure must be fairly nicety in case that the glass cracks. To address the need for such kind of application, Cosys's Proportional Pressure Controllers are all equipped with embedded closed-loop circuits .Therefore, Itgives the guarantee of the lower deficient rate of components and ensures grinding process can be performed smoothly and efficiently.