WEIYEE MP-2D+MPT-1 Dual-Station Semi-Automatic Grinding and Polishing System
| Brand | WEIYEE |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | MP-2D+MPT-1 |
| Grinding/Polishing Disc Diameter | 230 mm (9") |
| Number of Discs | 2 |
| Speed Range | 50–1000 rpm |
| Voltage | 220 V AC |
| Sample Capacity | Up to 4 specimens simultaneously (2 per station) |
| Pressure Control | Adjustable mechanical load system |
| Drive Type | Variable-frequency motor with stepless speed regulation |
Overview
The WEIYEE MP-2D+MPT-1 is a dual-station semi-automatic grinding and polishing system engineered for precision sample preparation in metallurgical, ceramic, geological, and advanced materials laboratories. It operates on the principle of controlled abrasive contact between rotating discs and specimen surfaces under regulated mechanical load—enabling reproducible planarization, material removal, and surface finish optimization. Unlike fully manual systems, the MP-2D+MPT-1 integrates independent speed and pressure control for each grinding/polishing station, allowing parallel processing of up to four specimens (two per disc) without cross-contamination or process interference. Its robust cast-iron base, precision-machined disc mounting flanges, and sealed bearing housings ensure long-term dimensional stability and minimal runout (<0.03 mm TIR), critical for achieving flatness tolerances required in optical microscopy, electron backscatter diffraction (EBSD), and quantitative metallographic analysis.
Key Features
- Dual independent stations with separate speed and pressure controls—eliminates inter-station drift during multi-step preparation sequences (e.g., coarse grinding → fine grinding → polishing)
- Stepless electronic speed regulation from 50 to 1000 rpm, calibrated and traceable to internal encoder feedback for ±1 rpm repeatability across operating range
- Adjustable mechanical loading mechanism with graduated scale (0–30 kgf per station), compatible with standard metallographic holders (ISO 6474-compliant)
- 230 mm (9″) diameter grinding/polishing discs—supports industry-standard consumables including silicon carbide papers (P80–P2500), diamond suspensions (1–9 µm), and colloidal silica (0.02–0.06 µm)
- Integrated splash guard with removable drain tray and chemical-resistant epoxy-coated work surface for safe handling of water-based and mild solvent slurries
- 220 V AC, 50 Hz single-phase input with thermal overload protection and emergency stop circuit compliant with IEC 60204-1
Sample Compatibility & Compliance
The MP-2D+MPT-1 accommodates specimens ranging from 10 mm to 50 mm in diameter (or rectangular equivalents up to 50 × 60 mm), including embedded and unmounted metallic alloys, sintered ceramics, composites, and geological thin sections. Each station accepts standard 230 mm backing plates with hook-and-loop or threaded fastening interfaces. The system supports ASTM E3, ISO 14489, and GB/T 13298–2015 sample preparation workflows—including sequential grinding with progressively finer abrasives, final polishing with non-damaging colloidal media, and edge retention verification. All mechanical adjustments are lockable via knurled thumbscrews, ensuring setup consistency across shifts and operators—essential for GLP-compliant laboratories conducting routine quality control or failure analysis.
Software & Data Management
As a semi-automatic platform, the MP-2D+MPT-1 does not include embedded microprocessor control or digital HMI. However, its analog control architecture ensures electromagnetic compatibility (EMC) in shared instrumentation environments and eliminates firmware-related obsolescence risks. Process parameters—including rotational speed, dwell time, and applied load—are documented manually or integrated into LIMS via external timer/logging devices. For audit readiness, laboratories may pair the unit with third-party programmable timers (e.g., Omron H3CR-F) to generate timestamped operation logs satisfying FDA 21 CFR Part 11 requirements when combined with procedural SOPs and operator sign-offs.
Applications
- Metallographic specimen preparation for light microscopy (LM), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS)
- Surface planarization of battery electrode cross-sections prior to FIB-SEM tomography
- Preparation of brazed joint interfaces in aerospace superalloys for interfacial phase characterization
- Routine QC grinding of powder metallurgy compacts to assess density homogeneity and pore distribution
- Geological thin section refinement for transmitted light petrography and cathodoluminescence mapping
FAQ
Is the MP-2D+MPT-1 suitable for automated protocol execution?
No—it is semi-automatic and requires manual initiation of each step; however, its dual-station design enables efficient batch processing with minimal operator intervention.
Can it be used with electrolytic polishing accessories?
No—this unit is strictly mechanical grinding/polishing equipment; electrolytic modules require dedicated power supplies and corrosion-resistant cell assemblies not supported by this platform.
What maintenance intervals are recommended for optimal performance?
Lubrication of disc spindle bearings every 500 operating hours and periodic verification of belt tension and disc runout using a dial indicator (recommended annually or after 2,000 cycles).
Does WEIYEE provide calibration documentation for speed and load settings?
Yes—each unit ships with a factory-verified calibration sheet referencing traceable standards for rotational speed (via optical tachometer) and mechanical load (via calibrated deadweight test).
Is the system compatible with vacuum chuck holders?
Not natively—the MP-2D+MPT-1 uses standard gravity-based specimen holders; vacuum chucks require custom adapter plates and are not supplied or validated by WEIYEE.
