QATM Qpol 300M2 Manual Dual-Disc Grinding and Polishing Machine

Overview

The QATM Qpol 300M2 is a precision-engineered manual dual-disc grinding and polishing machine designed for reproducible, high-fidelity metallographic sample preparation in research laboratories, quality control departments, and failure analysis facilities. Built upon QATM’s decades of expertise in materials characterization instrumentation, the Qpol 300M2 employs a robust electromechanical architecture to deliver stable rotational motion across two independently driven discs—each configurable with Ø250 mm or Ø300 mm consumable mounting surfaces. Its core operational principle relies on controlled mechanical abrasion and lubricated surface finishing under precisely regulated torque, speed, and dwell time. Unlike semi-automated systems, the Qpol 300M2 retains full manual operator control while integrating digital parameter monitoring and process documentation capabilities—ensuring traceability without compromising tactile feedback essential for optimizing edge retention, relief minimization, and phase preservation in heterogeneous alloys, composites, and coated substrates.

Key Features

• Manual dual-disc operation with independent drive control for simultaneous grinding and polishing or sequential multi-step preparation
• Intuitive 7-inch capacitive touchscreen interface displaying real-time rotational speed, elapsed time, applied torque (as visualized load indicator), and active method parameters
• Programmable preparation methods: up to 10 user-defined protocols stored internally—including speed setpoints, timer duration, rotation direction (CW/CCW), and water valve activation logic
• Integrated electro-pneumatic water valve with automatic open-on-start and close-on-completion sequencing, compliant with ISO 14971 risk management principles for fluid handling safety
• High-torque, brushless DC motor system delivering consistent 30–600 rpm across full load range; S1-rated continuous-duty motors (2 × 0.75 kW) ensure thermal stability during extended runs
• Ergonomic disc lift mechanism enabling rapid access to the lower basin for residue removal and cross-contamination prevention—critical for ASTM E3 and ISO 13087-compliant workflows
• Patented 750 rpm “spin-dry” cycle (3 sec duration) activated post-process to expel residual slurry from disc surfaces, reducing carryover between samples and extending consumable life
• Structural housing comprising powder-coated aluminum frame and impact-resistant polymer inner shroud—acoustically damped to ≤62 dB(A) at 1 m distance per IEC 61672-1

Sample Compatibility & Compliance

The Qpol 300M2 accommodates specimens ranging from 10 mm to 50 mm in diameter (standard mount size), including hot-pressed, cold-mounted, and embedded samples per ASTM E384 and ISO 6507-1 requirements. Its bidirectional disc rotation supports both conventional planar grinding and advanced edge-protection strategies for brittle ceramics or layered thin films. The machine meets CE marking directives (2006/42/EC Machinery Directive, 2014/30/EU EMC Directive) and conforms to EN 61000-6-2/6-4 immunity/emission standards. Optional integration with Qpol GO automated head enables GLP/GMP-aligned workflows featuring audit-trail-enabled method execution logs, meeting FDA 21 CFR Part 11 data integrity expectations when paired with validated software.

Software & Data Management

While the base Qpol 300M2 operates via standalone touchscreen firmware, its embedded RS485 and Ethernet interfaces support optional connection to QATM’s Q-App Suite v4.x for remote parameter configuration, method synchronization across multiple units, and export of preparation metadata (timestamp, operator ID, disc type, abrasive grade, coolant type) in CSV or XML format. All saved methods include version-controlled checksums and are write-protected against accidental overwrite—facilitating ISO/IEC 17025 clause 7.7 record retention compliance. Firmware updates are delivered via secure HTTPS channel with SHA-256 signature verification.

Applications

• Metallographic preparation of ferrous/non-ferrous alloys, sintered carbides, and additive-manufactured components prior to optical microscopy (OM), scanning electron microscopy (SEM), or electron backscatter diffraction (EBSD)
• Controlled thinning of geological thin sections and ceramic fracture surfaces for quantitative microstructural analysis
• Preparation of cross-sectional samples for coating adhesion assessment (ASTM D4541) and interfacial defect mapping
• Standardized grinding/polishing sequences per ASTM E3, ISO 16922, and VDI 3405 for interlaboratory round-robin studies
• Education and training environments where manual technique development and procedural transparency are pedagogical priorities

FAQ

Is the Qpol 300M2 compatible with diamond suspension dispensers?

Yes—when equipped with the optional Qdoser GO or Qdoser ONE volumetric dosing module, the system delivers precise, programmable delivery of diamond suspensions (e.g., 1–9 µm), colloidal silica, or alumina slurries synchronized with disc rotation and timer events.
Can the machine be integrated into a laboratory information management system (LIMS)?

Via its Ethernet port and Q-App Suite API, the Qpol 300M2 supports structured data export (JSON/CSV) containing method IDs, timestamps, and operator codes—enabling LIMS ingestion through standard middleware or custom RESTful integrations.
What maintenance intervals are recommended for long-term reliability?

QATM recommends biannual inspection of motor brushes (if applicable), quarterly calibration of torque display using certified reference loads, and daily cleaning of the basin and splash guard per the maintenance log included in the technical manual (Document No. QPOL300M2-MAN-EN-Rev.3.1).