The original imported QATM double disc automatic metallographic grinding and polishing machine SAPHIR 560 from Germany is a new generation of equal diameter double disc grinding and polishing machine with Rubin 520 grinding and polishing power head. It adopts innovative grinding and polishing power head technology, and the working disc diameter is 250-300 mm. The Rubin 520 grinding and polishing power head is equipped with an automatic protective cover, which sets a new standard for safe operation. The pressure loading method of single point loading and center loading, program storage, integrated automatic liquid adding system, and accurate control of material grinding amount are only some of their functions. With an electric height setting function with pneumatic clamping, combined with all other features of the host, the SAPHIR 560 can meet higher metallographic sample preparation requirements. It is an ideal model for metallographic laboratories such as teaching, scientific research, and quality control.