WEIYEE MP-1ZA Single-Station Intelligent Automatic Grinding and Polishing System

Overview

The WEIYEE MP-1ZA is a single-station intelligent grinding and polishing system engineered for precision sample preparation in metallurgical, ceramic, geological, and advanced materials laboratories. It operates on the principle of controlled mechanical abrasion—using rotational motion of a conditioned abrasive platen in conjunction with programmable head rotation, load application, and timed liquid delivery—to produce planar, scratch-free surfaces suitable for optical microscopy, electron microscopy (SEM/TEM), and microhardness testing. Unlike conventional manual or semi-automatic units, the MP-1ZA integrates closed-loop motion control, pneumatic force regulation, and real-time parameter monitoring to ensure inter-run reproducibility and minimize operator-induced variability. Its architecture supports standardized workflows aligned with ASTM E3, ISO 14577, and GB/T 13298, making it suitable for accredited QA/QC labs requiring documented process traceability.

Key Features

• Three operational modes: fully automatic, semi-automatic, and manual—enabling flexibility across routine throughput and method development scenarios.
• Infinitely variable platen speed (50–1500 rpm) with six factory-calibrated fixed-speed presets optimized for common abrasive sequences (e.g., SiC paper coarse grinding at 300 rpm, diamond suspension polishing at 1200 rpm).
• Independent head rotation control (20–120 rpm) ensures uniform material removal across specimen peripheries and mitigates edge rounding during final polishing stages.
• Pneumatic single-point loading delivers consistent, digitally adjustable pressure (typically 5–50 N range, calibrated per application)—critical for maintaining constant stress distribution during multi-step protocols.
• Soft-curve motor startup eliminates torque shock, extending consumable life and reducing vibration-induced surface artifacts.
• Electric vertical lift driven by a Panasonic servo motor enables precise, repeatable head positioning (±0.02 mm repeatability) and seamless integration with automated sample changers in future expansions.
• 9-inch capacitive touchscreen interface supports multilingual UI (English default), real-time parameter visualization, and password-protected user profiles for GLP-compliant access control.

Sample Compatibility & Compliance

The MP-1ZA accommodates up to eight standard 25 mm, 30 mm, or 40 mm diameter specimens per cycle using interchangeable holders (not included). It is compatible with all common consumables—including silicon carbide papers, diamond-impregnated discs, alumina and silica suspensions, and lubricant-based polishing cloths. The unit meets CE electromagnetic compatibility (EMC) directives and conforms to IEC 61000-6-2/6-3 standards. Its stainless steel (AISI 304) enclosure complies with ISO 14644-1 Class 8 cleanroom requirements for low particulate shedding. For regulated environments, audit trail functionality (via optional software module) supports 21 CFR Part 11 compliance through electronic signatures, time-stamped event logs, and immutable parameter history.

Software & Data Management

Embedded firmware supports full protocol programming: users define multi-stage sequences comprising speed, pressure, duration, head rotation, and dual-channel reagent dispensing (e.g., Stage 1: 300 rpm, 25 N, 120 s, forward; Stage 2: 1200 rpm, 15 N, 180 s, reverse + alumina flow at 0.8 mL/min). All programs are stored locally with timestamped version control. Optional PC-based WEIYEE LabManager™ software (v3.2+) enables remote monitoring, batch report generation (PDF/CSV), and integration with LIMS via OPC UA. Data export includes raw sensor timestamps, motor current draw, pressure feedback, and dispense volume—facilitating root-cause analysis of surface quality deviations.

Applications

• Metallurgical specimen preparation for grain structure analysis per ASTM E112 and ISO 643.
• Polishing of brittle ceramics (Al₂O₃, ZrO₂, SiC) prior to fracture toughness evaluation (ISO 20502).
• Surface conditioning of geological thin sections for cathodoluminescence and Raman mapping.
• Preparation of battery electrode cross-sections (LiCoO₂, NMC) for SEM-EDS compositional profiling.
• Routine QC of additive-manufactured metal parts (Ti-6Al-4V, Inconel 718) prior to microhardness (ASTM E384) and porosity assessment.

FAQ

What safety certifications does the MP-1ZA hold?

The system carries CE marking for EMC and low-voltage directive compliance (2014/30/EU and 2014/35/EU). Electrical insulation meets IEC 61010-1 Class I requirements.
Can the MP-1ZA be integrated into an automated lab workflow?

Yes—the unit features RS-485 Modbus RTU and optional Ethernet/IP ports for PLC-level integration. Mechanical interfaces support third-party robotic arm gripper alignment per ISO 9283 specifications.
Is calibration documentation provided with shipment?

Each unit ships with a factory calibration certificate covering platen speed accuracy (±0.5% of setpoint), pressure transducer linearity (±1.0% FS), and timer stability (±0.1 s over 10 min).
What maintenance intervals are recommended?

Lubrication of the vertical lift mechanism every 500 operating hours; inspection of pneumatic seals and tubing quarterly; verification of platen runout (≤0.03 mm TIR) annually using certified dial indicator.
Does the system support custom consumable mounting fixtures?

Yes—standard M6 threaded holes on the platen surface allow OEM fixture adaptation. WEIYEE provides CAD templates and mechanical interface specifications upon request.