WEIYEE MP-2B Dual-Disk Grinding and Polishing Machine
| Brand | WEIYEE |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Manufacture | China |
| Model | MP-2B |
| Speed Range | 50–1000 rpm (infinitely variable) |
| Platen Diameter | 203 mm (8") |
| Number of Platens | 2 |
| Power Supply | 220 V AC |
Overview
The WEIYEE MP-2B Dual-Disk Grinding and Polishing Machine is a precision-engineered benchtop instrument designed for consistent, reproducible sample preparation in metallurgical, geological, ceramic, and advanced materials laboratories. It operates on the principle of controlled mechanical abrasion—using rotational motion and applied load to progressively reduce surface topography through sequential grinding and polishing stages. Unlike single-platen systems, the MP-2B integrates two independently operable platens, enabling simultaneous or staggered execution of coarse grinding and fine polishing protocols—significantly reducing total preparation time while maintaining strict process segregation. Its infinitely variable speed control (50–1000 rpm) allows precise adaptation to material hardness, abrasive type, and stage-specific requirements—from initial SiC paper grinding at lower speeds with higher torque to final diamond suspension polishing at elevated rotational stability.
Key Features
- Dual independent 203 mm (8″) platens with synchronized motor drives, each equipped with dedicated speed regulation and thermal overload protection.
- Infinitely variable speed control via analog potentiometer or digital encoder interface, calibrated across full 50–1000 rpm range with ±2 rpm repeatability under nominal load.
- Benchtop footprint (620 × 480 × 320 mm) optimized for ISO 17025-compliant lab layouts; constructed with reinforced cast aluminum base and stainless steel platen housings for long-term dimensional stability.
- Integrated water delivery system with adjustable flow valves and quick-connect fittings compatible with standard 6.35 mm (¼”) tubing—supports continuous coolant supply during wet grinding/polishing.
- Motor assembly rated for continuous duty cycle at 0.75 kW output, compliant with IEC 60034-1 insulation class F and IP54 ingress protection.
Sample Compatibility & Compliance
The MP-2B accommodates specimens up to 50 mm in diameter (standard metallographic mounts) or rectangular samples ≤ 40 × 60 mm when secured in universal clamping fixtures. It supports all conventional consumables: silicon carbide papers (P80–P2500), alumina and diamond suspensions (0.25–9 µm), and cloth-backed polishing cloths (nap length: short to long pile). The machine conforms to ASTM E3–22 (Standard Guide for Preparation of Metallographic Specimens) and ISO 15510:2021 (Metallic materials — Metallographic specimen preparation). Its mechanical design and operational parameters are validated for use in GLP environments where equipment qualification (IQ/OQ/PQ) documentation is required. All electrical components meet GB/T 19001–2016 (equivalent to ISO 9001:2015) manufacturing standards.
Software & Data Management
The MP-2B operates as a standalone electromechanical system without embedded firmware or network connectivity—ensuring deterministic response and eliminating cybersecurity exposure in regulated settings. Speed settings are manually recorded per protocol in laboratory notebooks or LIMS-integrated electronic batch records. For labs requiring audit-ready traceability, optional external data loggers (e.g., Omega OM-DAQPRO-5300) can be interfaced via analog 0–10 V output signals from the speed controller. This architecture aligns with FDA 21 CFR Part 11 requirements when paired with validated SOPs governing manual parameter entry, operator authentication, and record retention.
Applications
- Metallographic specimen preparation for light microscopy and SEM analysis—including ferrous alloys, non-ferrous metals, weld zones, and additive-manufactured components.
- Geological thin-section fabrication for petrographic analysis, where planar parallelism and minimal relief are critical.
- Ceramic and composite cross-sectioning for porosity assessment, grain boundary characterization, and interfacial integrity evaluation.
- Quality control in powder metallurgy and sintered component manufacturing, supporting ISO 4497 and ASTM B276 compliance testing.
- Research-scale surface engineering studies involving tribological coatings, diffusion barriers, and nanostructured overlays.
FAQ
Can the two platens operate at different speeds simultaneously?
Yes—the MP-2B features fully independent speed controls for each platen, allowing concurrent operation at distinct rpm values (e.g., 200 rpm for grinding, 600 rpm for polishing).
Is the machine compatible with automatic force application systems?
No—the MP-2B is a manual-load platform; specimen pressure must be applied externally using standardized holders or pneumatic/hydraulic press attachments (not included).
What maintenance intervals are recommended for routine operation?
Platen bearing lubrication every 500 operating hours; belt tension verification quarterly; coolant system descaling biannually in hard-water environments.
Does the unit include CE or UL certification?
The MP-2B carries CCC (China Compulsory Certification) and complies with GB 4706.1–2005 safety standards; CE/UL variants are available upon request with modified power input modules.
Can custom platen inserts (e.g., rubber-backed, magnetic, or vacuum-chuck) be retrofitted?
Yes—standard M6 threaded mounting holes (12 per platen) support third-party accessory integration, subject to maximum 5 kg static load and 10 N·m torque limits.
