The MPD-2W dual disc desktop metallographic sample grinding and polishing machine is a high-performance machine that uses various water-resistant grinding metallographic sandpapers and polishing materials with different tensile strengths to grind and polish various metal and alloy samples as well as various lithological samples for observation and determination of metallic structures under a microscope.

The grinding and polishing machine adopts variable frequency control to regulate the speed of the AC motor power, which is transmitted to two connecting shafts through pulleys to drive the grinding and polishing disc to operate smoothly. The machine has the characteristic of stepless variable speed between 0-1500r/min. It greatly facilitates the technical speed required for grinding and polishing various sample materials, and can be operated by two people simultaneously to accelerate the sample preparation speed. Moreover, its cost-effectiveness is better than similar products in China, making it one of the essential equipment for laboratory sample preparation.