QATM Qpol 300 M1 Manual Single-Disc Grinding and Polishing Machine

Overview

The QATM Qpol 300 M1 is a precision-engineered manual single-disc grinding and polishing machine designed for reproducible, operator-controlled metallographic sample preparation in quality control laboratories, failure analysis centers, and academic metallurgy facilities. It operates on the principle of controlled mechanical abrasion—where rotational motion of a conditioned abrasive surface (e.g., SiC paper, diamond suspension-impregnated cloth, or alumina slurry) removes material at defined rates under consistent pressure and time parameters. Unlike automated multi-station systems, the Qpol 300 M1 prioritizes tactile feedback and procedural flexibility while embedding metrological rigor into manual workflows. Its robust aluminum housing with powder-coated finish, impact-resistant polymer inner shield, and dynamically balanced drive system ensure low-vibration operation (< 2.5 mm/s RMS vibration amplitude), critical for minimizing edge rounding and relief artifacts during final polishing stages.

Key Features

• Manually operated single-platen platform with ergonomic touchscreen interface displaying real-time speed, elapsed time, torque load, and active method ID
• Continuously variable rotational speed range from 30 to 600 rpm—optimized for coarse grinding (≤150 rpm), fine grinding (150–300 rpm), and final polishing (300–600 rpm)
• Integrated torque display providing visual feedback on instantaneous grinding/polishing force—enabling consistent hand-pressure application across operators and shifts
• Programmable digital timer with pre-set method storage (up to 99 user-defined protocols), supporting GLP-compliant documentation traceability
• Automated water valve control: opens at process initiation and closes at termination; compatible with deionized water or coolant recirculation loops
• Spin-dry function: executes a 3-second rotation at 750 rpm post-process to expel residual liquid from the platen surface, reducing cross-contamination risk and accelerating cleanup
• Bidirectional platen rotation (clockwise/counter-clockwise) for optimized wear distribution on consumables and reduced directional scratch bias
• Lift-and-clean platen mechanism enabling rapid access to the lower basin for thorough rinsing and debris removal without tools

Sample Compatibility & Compliance

The Qpol 300 M1 accommodates specimens up to 40 mm in height and 300 mm in diameter when mounted on standard metallographic holders. It supports all conventional mounting resins (epoxy, phenolic, acrylic) and unmounted bulk samples—including ferrous alloys, non-ferrous metals (Al, Cu, Ti), ceramics, composites, and geological specimens. The machine conforms to EN 61000-6-2 (EMC immunity) and EN 61000-6-4 (EMC emission) standards. Its construction materials meet RoHS Directive 2011/65/EU requirements. When integrated with Qpol GO and Qdoser ONE systems, it supports audit-ready workflows compliant with ISO/IEC 17025:2017 clause 7.2.2 (method validation) and ASTM E3-22 (standard guide for preparation of metallographic specimens).

Software & Data Management

While the base Qpol 300 M1 operates without external software, its embedded firmware enables full parameter logging per run—including start/stop timestamps, speed profile, torque history (averaged over 1-s intervals), and method identifier. Data export is supported via USB-C port in CSV format for integration into LIMS or internal QA databases. Optional Qpol GO upgrade adds Ethernet connectivity, remote monitoring via QATM’s Q-Connect platform, and electronic signature support aligned with FDA 21 CFR Part 11 requirements for electronic records and signatures in regulated environments.

Applications

• Routine QC inspection of weld zones, heat-affected zones (HAZ), and coating interfaces in automotive and aerospace components
• Failure analysis of fractured surfaces in power generation turbine blades and pipeline steels
• Microstructural evaluation of additive-manufactured (AM) metal parts—including porosity mapping and grain boundary characterization
• Preparation of cross-sections for SEM-EDS, EBSD, and microhardness testing (Vickers/Knoop)
• Teaching labs requiring intuitive, repeatable hands-on training in metallographic principles per ASTM E3-22 pedagogical guidelines

FAQ

Can the Qpol 300 M1 be upgraded to semi-automated operation?

Yes—via retrofit installation of the Qpol GO motorized grinding/polishing head, which adds programmable pressure control, stepwise speed ramping, and synchronized dosing coordination.
Is the platen interchangeable between 250 mm and 300 mm configurations?

No—the unit is factory-configured for one fixed platen size; users must specify Ø250 mm or Ø300 mm at time of order.
What maintenance intervals are recommended for the drive motor and bearings?

QATM specifies 12-month lubrication service for the sealed gearmotor and biannual inspection of the platen shaft coupling; no routine bearing replacement is required within the first 5 years under normal lab usage (≤8 hrs/day).
Does the device support integration with third-party dosing systems?

Only QATM-certified Qdoser GO and Qdoser ONE units are electrically and mechanically validated for synchronized operation; non-OEM fluid dispensers may compromise torque feedback accuracy and method reproducibility.
How is calibration verified for torque and speed accuracy?

Torque sensor linearity is factory-calibrated against NIST-traceable load cells; speed accuracy is confirmed using optical tachometry (±0.5% tolerance at 300 rpm); annual recalibration is recommended per ISO/IEC 17025 internal audit schedules.