WEIYEE MP-1B Single-Disc Grinding and Polishing Machine
| Brand | WEIYEE |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | MP-1B |
| Speed Range | 50–1000 rpm (infinitely variable) |
| Platen Diameter | 203 mm (8") |
| Number of Platens | 1 |
| Power Supply | 220 V AC, 50 Hz |
| Platen Material | Cast Iron with Precision-Machined Surface |
| Motor Type | Brushless DC Motor with Closed-Loop Speed Control |
| Safety Compliance | CE-marked per EN 61000-6-2/6-4, IP20 enclosure rating |
Overview
The WEIYEE MP-1B Single-Disc Grinding and Polishing Machine is an engineered solution for controlled, repeatable sample preparation in metallurgical, ceramic, geological, and advanced materials laboratories. Designed around a robust cast-iron platen architecture, the MP-1B employs a brushless DC motor coupled with closed-loop speed regulation to deliver stable rotational performance across its full 50–1000 rpm range. Unlike fixed-speed or stepped-gear systems, the infinitely variable speed control enables precise matching of abrasive action to material hardness, microstructure sensitivity, and stage-specific requirements—whether coarse grinding, intermediate leveling, or final polishing. The 203 mm (8-inch) precision-ground platen ensures uniform surface contact and minimal runout (< 0.02 mm TIR), critical for achieving planar integrity and minimizing edge rounding during specimen preparation. Its compact desktop footprint (W × D × H: 320 × 380 × 310 mm) supports integration into ISO 17025-accredited labs, QC suites, and university teaching facilities where space efficiency and operational consistency are prioritized.
Key Features
- Infinitely adjustable speed control (50–1000 rpm) with digital feedback and ±1 rpm repeatability under load
- 203 mm diameter cast-iron platen with hardened surface finish (HV ≥ 220) and concentricity tolerance ≤ 0.015 mm
- Brushless DC motor delivering high torque at low speeds (≥ 0.8 N·m at 50 rpm) without thermal derating
- Ergonomic front-panel interface with LED speed display, start/stop button, and emergency stop switch compliant with IEC 60204-1
- Integrated coolant delivery port (M10 thread) compatible with standard laboratory recirculating cooling systems
- Modular design supporting interchangeable platen adapters (e.g., magnetic, vacuum, or threaded mounts) for diamond disc, cloth, or alumina pad attachment
Sample Compatibility & Compliance
The MP-1B accommodates specimens up to 50 mm in diameter or rectangular samples ≤ 40 × 60 mm, making it suitable for metallographic mounts (phenolic, epoxy, acrylic), sintered ceramics, semiconductor wafers (pre-thinning), geological thin sections, and composite cross-sections. It supports all standard ASTM E3, ISO 15510, and GB/T 13298-compliant preparation protocols—including sequential grinding with SiC papers (P80–P2500), diamond suspension polishing (15–0.25 µm), and colloidal silica final polish. The unit meets electromagnetic compatibility (EMC) requirements per EN 61000-6-2 (immunity) and EN 61000-6-4 (emission), and carries CE marking for safe operation within EU-based GLP environments. Optional documentation packages include Factory Acceptance Test (FAT) reports and metrology certificates traceable to CNAS-accredited standards.
Software & Data Management
While the MP-1B operates as a standalone analog-digital hybrid instrument, its speed control circuitry is compatible with external programmable logic controllers (PLCs) and LabVIEW-compatible DAQ modules via 0–10 V analog input/output ports (optional accessory). For regulated environments, optional firmware upgrade enables audit-trail logging of operational parameters—including runtime, average speed, and motor current—stored locally on removable microSD card (not included). These logs comply with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) and support 21 CFR Part 11-compliant electronic record retention when integrated with validated LIMS platforms.
Applications
- Preparation of metallographic specimens for optical microscopy (OM) and scanning electron microscopy (SEM) analysis
- Surface planarization of brittle materials (e.g., silicon carbide, tungsten carbide, zirconia) prior to FIB-SEM sectioning
- Standardized grinding/polishing of cementitious composites per ASTM C1259 for interfacial transition zone (ITZ) characterization
- Routine QC of coated substrates (e.g., PVD/CVD layers) requiring controlled material removal rates
- Teaching labs conducting ASTM E3-compliant hands-on training in specimen preparation methodology
FAQ
What types of abrasives can be used with the MP-1B?
Standard bonded abrasives (SiC papers, diamond-impregnated discs), loose abrasives (alumina, diamond suspensions), and woven/non-woven polishing cloths are all compatible. Platen surface flatness supports uniform slurry distribution.
Is the platen removable for cleaning or replacement?
Yes—the platen is secured by three M8 stainless steel cap screws and can be removed without tools beyond a hex key; replacement platens (including grooved or soft-pad variants) are available as OEM accessories.
Does the MP-1B meet ISO/IEC 17025 calibration requirements?
The base unit does not include built-in calibration functionality, but third-party accredited labs can perform speed and runout verification per ISO 17025 using traceable tachometers and dial indicators; WEIYEE provides test points and mechanical reference geometry documentation.
Can the machine operate continuously for extended periods?
Rated for continuous duty at ≤ 750 rpm under nominal load; above this speed, duty cycle should be limited to 45 min ON / 15 min OFF to maintain thermal stability of the motor windings and bearing assembly.
