Metallographic sample preparation is the cornerstone of reliable materials characterization, transforming rough specimens into mirror-like surfaces that reveal critical microstructural information. Whether examining grain boundaries in steel alloys, phase distribution in composites, or failure mechanisms in semiconductor components, the quality of sample preparation directly determines analytical accuracy. Mikrosize, a trusted manufacturer of measuring and testing instruments, offers a comprehensive portfolio of metallographic grinding and polishing machines spanning manual entry-level systems to fully automated multi-platen workstations. This article provides an overview of five representative models—
the iPoli-SC-250A Auto Metallographic Grinding Polishing Machine,
the MPoli-230M Metallographic Manual Grinder Polisher,
the MPoli-250A/300A Metallographic Auto Grinder Polisher,
the iPoli-D Metallographic Manual Grinding Polishing Machine,
and the uPoli-3-250A Three-Platen Automatic Metallographic Grinder Polisher—each engineered to address specific laboratory requirements while maintaining the precision and reliability that define the Mikrosize brand.
Manual Grinding and Polishing Solutions for Versatile Laboratory Use
For laboratories requiring hands-on control and operational flexibility, Mikrosize offers robust manual grinding and polishing machines that deliver consistent results without compromising ease of use. The MPoli-230M Metallographic Manual Grinder Polisher is a single-chip microcomputer controlled grinding and polishing machine featuring an ABS material shell that is beautiful in appearance, anti-corrosion and durable. Its strong large support chassis design ensures the precision rotary balance, while the DC brushless motor offers long service life, low noise and powerful motor brings strong power for efficient grinding polishing experience. With stepless speed or four speeds control and rotational direction changeable, the machine accommodates various material types and preparation stages. The integrated cooling water system with adjustable tube direction enables wet grinding, while the washing function at the bottom of the grinding disc prevents the accumulation and precipitation of grinding materials.
The iPoli-D Metallographic Manual Grinding Polishing Machine extends manual versatility with a dual-disc configuration, equipped with two independent grinding and polishing discs, allowing different processes or handling of different samples simultaneously, improving work efficiency. The polishing disc has a diameter of 203mm, capable of grinding and polishing most samples available on the market. Featuring a water cooling system that cools the samples during grinding and polishing, the machine prevents damage to the metallographic structure due to overheating. With stepless and multi-stage speed control, users can select the appropriate speed based on the sample material, process requirements, and the stage of grinding or polishing to achieve optimal results. This model is applied in wafer grinding and polishing processes within chip manufacturing, enhancing chip performance and reliability, as well as for metallographic samples of various metal materials such as steel, aluminum alloys, and copper alloys.
Automated Grinder-Polishers for High-Throughput Laboratories
When productivity and reproducibility are paramount, Mikrosize’s automated grinding and polishing systems deliver exceptional performance. The iPoli-SC-250A Auto Metallographic Grinding Polishing Machine is suitable for automatic sample preparation in the process of rough grinding, fine grinding, rough polishing and fine polishing of metallographic samples. It features pneumatic central and single force, multi-sample clamp, and is equipped with an electronic proportional valve, allowing grinding pressure to be adjusted directly without poles. The advanced microprocessor control system provides adjustable grinding speed, while the setting of sample pressure and time is intuitive. With a casting aluminum base ensuring stable rotation, safe and reliable operation, and low noise, the machine also includes a water cooling device to prevent the sample microstructure from being damaged and to wash away abrasive particles. Available in both single disc and dual-disc configurations, this model is ideal sample making equipment for laboratories of enterprises, scientific research institutions and colleges and universities.
The MPoli-250A/300A Metallographic Auto Grinder Polisher bridges manual and fully automated operation, offering both auto and manual grinding and polishing processes. Its 7-inch colorful touch screen ensures easy operation and intuitive data display, while time and speed can be set with an automatically controlled watering system. A special self-adaptive design grinding disc makes the sample and grinding disc fit perfectly, effectively solving the multi faceted phenomenon and ensuring consistency of grinding surface. The magnetic grinding disc supports fast disc replacing, and the machine can store ten procedures, allowing different parameters to be set for different samples. This versatility makes it a preferred choice for R&D laboratories handling diverse material types.
Three-Platen Automation for Maximum Efficiency
For the most demanding production and research environments, the uPoli-3-250A Three-Platen Automatic Metallographic Grinder Polisher represents the pinnacle of Mikrosize’s engineering capabilities. Equipped with three grinding and polishing platens, it enables multi-step grinding and polishing in one operation. The specimen holder oscillates left and right over the platen to maximize grinding and polishing efficiency. Featuring three operating modes—fully automatic mode, multi-step mode, and multi-program mode—the system offers exceptional flexibility. A 1kW high-power servo motor controlled by PLC provides high and constant torque at any speed, with a wide speed adjustment range of 0-1000 rpm (max. 1500 rpm). The touch-screen interface allows speed, polishing time, water valve and other parameters to be set, with programs saved for direct recall in future use. Loading force can be adjusted during operation for flexibility and convenience. With 99 groups of parameters in automatic mode and 99 programs in multi-step mode, this system is designed for semiconductor industry applications including wafer thinning and polishing, as well as metallographic analysis and failure analysis.
Common Strengths Across the Mikrosize Portfolio
Across all models, Mikrosize metallographic grinding and polishing machines share common design philosophies: robust construction, intuitive operation, and consistent preparation quality. From the entry-level manual polishers to the fully automated three-platen system, each instrument is built to deliver reliable, repeatable results that support accurate materials characterization. Whether used in educational settings, industrial quality control, or advanced research laboratories, Mikrosize grinding and polishing machines provide the foundation for precise metallographic analysis across diverse applications including metals, ceramics, rock specimens, and electronic materials.
