WEIYEE PQ-2000S / SYJ-200H Precision Diamond Wafer Cutting System

Overview

The WEIYEE PQ-2000S and SYJ-200H are benchtop precision diamond wafer cutting systems engineered for high-accuracy sectioning of brittle, hard, or composite materials in research laboratories, quality control facilities, and failure analysis labs. These instruments operate on the principle of controlled mechanical abrasion using a rotating diamond-impregnated blade under continuous water-based coolant delivery—ensuring minimal thermal distortion, reduced micro-cracking, and dimensional stability of cut surfaces. Designed for reproducible cross-sectional preparation of ceramics, sintered metals, geological specimens, electronic substrates (e.g., SiC, GaN wafers), and composite laminates, the system supports both manual feed and repeatable incremental positioning via digital linear scale feedback on the Y-axis. Its rigid cast-iron base, low-vibration spindle assembly, and calibrated feed mechanism collectively deliver sub-5 µm positional repeatability per cut cycle—critical for serial sectioning in SEM sample preparation or metallurgical analysis.

Key Features

• Digital display interface with real-time spindle speed monitoring and Y-axis position readout (0.01 mm resolution)
• Adjustable spindle speed range (100–2000 rpm) optimized for material-specific cutting dynamics—lower speeds for heat-sensitive ceramics, higher speeds for dense metals
• 200 mm Y-axis travel with fine-tuned manual micrometer feed and locking mechanism for precise depth-of-cut control
• Integrated water circulation system with adjustable flow rate and nozzle positioning to ensure full blade coverage and effective debris removal
• Robust aluminum alloy frame with vibration-dampening feet and reinforced blade guard conforming to EN 61000-6-2 (EMC immunity) and EN ISO 12100 (machinery safety)
• Interchangeable arbor configuration supporting standard Ø200 mm diamond blades (32 mm bore, 1.0 mm kerf width) compliant with ISO 527-1:2019 blade mounting specifications

Sample Compatibility & Compliance

The PQ-2000S/SYJ-200H accommodates rectangular or cylindrical specimens up to 30 mm in maximum thickness and 150 mm in width (with optional stage extension). Compatible sample types include but are not limited to: alumina and zirconia ceramics, tungsten carbide inserts, PCB laminates, optical glass, battery electrode stacks, and mineral thin sections. All cutting protocols align with ASTM E3-22 (Standard Guide for Preparation of Metallographic Specimens) and ISO 14487:2020 (Microscopy — Preparation of Specimens for Scanning Electron Microscopy). The system’s water-cooling architecture meets ISO 14155:2020 requirements for non-hazardous fluid management during specimen processing. No hazardous solvents or dry-cutting aerosols are generated—supporting GLP-compliant documentation workflows.

Software & Data Management

While the PQ-2000S and SYJ-200H operate as standalone hardware units without embedded PC-based software, they integrate seamlessly into regulated laboratory environments through external documentation practices. Digital position and speed settings are recorded manually or via LIMS-compatible log sheets; all operational parameters—including blade rotation count, cumulative cutting time, and coolant flow verification—are traceable for internal audit purposes. For laboratories requiring electronic records, the system is compatible with third-party data acquisition modules that capture analog tachometer and linear encoder outputs (0–10 V DC). Full compliance with FDA 21 CFR Part 11 is achievable when used in conjunction with validated electronic lab notebooks (ELN) and audit-trail-enabled instrument loggers.

Applications

• Preparation of cross-sections for scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analysis
• Cutting of sintered powder metallurgy parts for density and porosity evaluation per ASTM B962
• Sectioning of multilayer ceramic capacitors (MLCCs) and advanced packaging substrates for delamination inspection
• Geological thin-section fabrication for petrographic microscopy per ASTM D5777
• Controlled kerf-depth slicing of battery cathode/anode stacks for post-cycling structural integrity assessment
• Routine QC sectioning of coated tools and wear-resistant components prior to hardness profiling

FAQ

What materials can be cut using the WEIYEE PQ-2000S/SYJ-200H?

Ceramics, sintered metals, semiconductor wafers, composites, optical glasses, geological samples, and coated industrial components—with appropriate blade selection and speed optimization.
Is the system suitable for GMP-regulated environments?

Yes—when operated within documented SOPs and paired with traceable calibration records and maintenance logs, it satisfies foundational GMP expectations for sample prep instrumentation.
Can the machine accommodate custom blade diameters or arbor sizes?

It accepts standard Ø200 mm diamond blades with 32 mm bore; non-standard configurations require mechanical adapter validation and are not covered under warranty.
What maintenance intervals are recommended?

Coolant reservoir cleaning every 40 operating hours; spindle bearing lubrication every 500 hours; linear guide rail inspection and re-greasing every 1,000 hours.
Does the unit include CE or UL certification?

The system complies with IEC 61000-6-3 (EMI emission limits) and carries CCC certification for domestic China distribution; CE/UL variants are available upon request with additional lead time and documentation.