MPoli-250A/300A Automatic Metallographic Grinder Polisher: Precision Sample Preparation for Modern Material Analysis Laboratories
In the field of material analysis and quality control, the preparation of metallographic specimens demands precision, consistency, and efficiency. The MPoli-250A/300A Automatic Metallographic Grinder Polisher from Mikrosize represents a significant advancement in metallographic sample preparation equipment, delivering automated grinding and polishing workflows that eliminate manual inconsistencies while dramatically improving laboratory throughput.
Advanced Microcontroller-Based Control System
At the heart of this automatic metallographic grinder polisher lies a sophisticated single-chip microcomputer control system that manages every aspect of the preparation process. The 7-inch colorful touch screen provides an intuitive interface where operators can easily set time, speed, and program parameters. With the capacity to store up to ten distinct procedures, the machine enables users to save and recall optimal parameter sets for different sample materials, ensuring repeatable results across diverse applications.
Dual Pressure Modes for Versatile Sample Preparation
The MPoli-250A/300A offers two distinct grinding head pressure modes: single force pressure and central force pressure. This flexibility allows laboratories to select the most suitable mode for specific working conditions and sample requirements. The single sample force ranges from 0 to 50 N, while the central sample force reaches up to 160 N. Pressure regulation is managed with precision, ensuring consistent material removal across the entire sample surface.
Innovative Self-Adaptive Grinding Design
A standout feature of this automatic grinding and polishing system is its special self-adaptive design grinding disc. This unique mechanism ensures the sample and grinding disc fit perfectly, effectively solving the multi-faceted phenomenon that commonly plagues manual preparation methods. The result is a consistently high-quality grinding surface on every sample, eliminating the variability that can compromise metallographic analysis.
Magnetic Disc System for Rapid Changeovers
The magnetic grinding disc design supports fast disc replacement, significantly reducing downtime between preparation steps. The Teflon-painted wheel holder prevents residue from abrasive paper and polishing cloth from adhering to the surface, making cleanup quick and effortless. This feature is particularly valuable in high-throughput laboratories where frequent abrasive changes are routine.
Superior Drive Technology and Build Quality
Powering the unit is a DC brushless motor that delivers long service life and low-noise operation while providing strong, reliable power. The platen disc operates with stepless speed control from 100 to 1000 r/min and supports both clockwise and counter-clockwise rotation. The grinding head, driven by a 200W stepper motor, offers stepless speed adjustment from 20 to 120 r/min. The precision cast aluminum support chassis ensures perfect rotational balance, while the leak-proof spindle design effectively protects internal bearings from contamination.
Automated Features for Consistent Results
The fully automatic metallographic polishing machine includes an automatically controlled watering system that opens and closes on schedule, effectively replicating and replacing manual grinding and polishing steps. The automatic locking function of the grinding head enhances operational safety. The semi-rotating grinding disc design, combined with an inner lighting system, makes sample loading and unloading exceptionally convenient and precise.
Comprehensive Technical Specifications
The MPoli-250A/300A series is available in four configurations to suit different laboratory needs:
MPoli-1-250A: Single disc, 250mm platen diameter
MPoli-1-300A: Single disc, 300mm platen diameter
MPoli-2-250A: Twin disc, 250mm platen diameter
MPoli-2-300A: Twin disc, 300mm platen diameter
Standard sample holders accommodate Φ25mm, Φ30mm, and Φ40mm specimens, with customized sizes and shapes available upon request. The machine operates on 220V, 50Hz power supply with 8A (single-disc models) or 12A (twin-disc models) current draw. Dimensions range from 800×800×760mm for single-disc units to 1200×800×760mm for twin-disc configurations, with net weights of 96kg and 134kg respectively.
Ideal Applications for Material Analysis Laboratories
This metallographic grinding and polishing equipment is ideally suited for:
Preparation of various metallographic specimens for material microstructure analysis
High-throughput laboratories requiring consistent, reproducible results
Research institutions and quality control facilities seeking to automate sample preparation workflows
Industries including automotive, aerospace, electronics, and materials science
Streamlined Maintenance and Operation
The dedicated bowl-shaped lining contains dirt and debris within the inner area of the tray, making the machine exceptionally easy to clean and maintain after use. The electromagnetic lock on the grinding head engages automatically, providing a safe and convenient user experience. With support for both automatic and manual grinding and polishing processes, the MPoli-250A/300A offers the flexibility to accommodate various laboratory workflows and operator preferences.
