YDWG WQD-360 Automated Video Drop Point & Softening Point Analyzer

Overview

The YDWG WQD-360 Automated Video Drop Point & Softening Point Analyzer is a dual-channel thermal transition measurement system engineered for precision determination of drop point and softening point in semi-solid and thermoplastic materials. Unlike conventional capillary-based or ring-and-ball methods requiring glycerol or water baths, the WQD-360 implements a solvent-free cup-and-ball methodology aligned with modern laboratory hygiene and regulatory expectations. It operates on the principle of controlled thermal ramping while optically monitoring sample deformation under gravity—capturing the onset of flow (drop point) or structural collapse (softening point) via high-fidelity video analysis. Designed for routine QC/QA labs in pharmaceuticals, petrochemicals, cosmetics, and polymer manufacturing, the instrument delivers traceable, auditable results across a broad thermal range (ambient to 360 °C), supporting both pharmacopeial compliance and industrial specification testing.

Key Features

• Dual independent measurement channels enable simultaneous analysis of two samples—reducing throughput time and improving inter-sample comparability.
• Integrated 720p HD camera system provides real-time visualization, full-process video capture, and frame-by-frame playback for result verification and operator training.
• Continuously adjustable heating rate (0.1–20 °C/min) ensures method flexibility across diverse material classes—from low-melting ointments to high-temperature resins.
• 10.1″ IPS capacitive touchscreen interface with embedded Android OS supports intuitive navigation, multi-user authentication, and seamless integration with LIMS via USB or RS232.
• Comprehensive data integrity architecture includes electronic signatures, user-level access control (admin/operator/auditor tiers), audit trail logging, and full data溯源 (traceability) per FDA 21 CFR Part 11 and GLP/GMP requirements.
• Solvent-free cup-and-ball test configuration eliminates risks associated with hot oil/glycerol handling, simplifies cleaning, and reduces maintenance downtime.
• 64 GB internal storage retains >10,000 test records with embedded metadata (operator ID, timestamp, method ID, environmental conditions).

Sample Compatibility & Compliance

The WQD-360 is validated for use with a wide spectrum of thermally responsive matrices including pharmaceutical suppositories and ointments (e.g., PEG-based, cocoa butter, polyoxyl stearate), industrial lubricants (greases, petroleum jellies), hydrocarbon derivatives (asphalt, coal tar, paraffin wax), natural resins (rosin, shellac), and edible fats (cocoa butter, palm oil fractions). All measurements adhere strictly to internationally recognized standards: ASTM D3461 (drop point of lubricating grease), ASTM D3104 (softening point of rosin), ASTM D3954 (drop point of waxes), and ASTM D6090 (softening point of asphaltic materials). In pharmaceutical applications, it satisfies Chinese Pharmacopoeia (2020 Edition) General Chapter 0612 and USP , ensuring alignment with global regulatory submission requirements.

Software & Data Management

The embedded Android-based software platform supports up to 400 pre-programmed test methods, each configurable for heating profile, endpoint criteria (e.g., first droplet detachment, ball sag distance), image capture interval, and pass/fail thresholds. All raw video files, thermal curves, and metadata are stored in encrypted, tamper-evident format. Export options include CSV (for statistical analysis), PDF reports (with digital signature and QR-coded audit trail), and direct transmission to LIMS via configurable API or USB mass storage mode. The system maintains full ALCOA+ principles—attributable, legible, contemporaneous, original, accurate, complete, consistent, enduring, and available—meeting ISO/IEC 17025 and ICH GCP documentation standards.

Applications

• Pharmaceutical QA: Release testing of rectal/vaginal suppositories, topical ointments, and transdermal gels per pharmacopeial monographs.
• Petrochemical QC: Drop point verification of lithium-complex greases, oxidation stability screening of base oils, and softening behavior assessment of bituminous binders.
• Food & Cosmetics: Melting profile characterization of cocoa butter equivalents, shea butter fractions, and emulsified creams.
• Materials R&D: Thermal transition mapping of bio-based polymers, thermoplastic elastomers, and phase-change materials (PCMs).
• Regulatory Support: Generation of auditable evidence packages for FDA, EMA, NMPA, and PMDA submissions requiring documented thermal behavior data.

FAQ

Does the WQD-360 support ASTM D3461 and USP compliance out-of-the-box?
Yes—the instrument ships with pre-validated methods for both standards, including calibrated thermal profiles, defined optical detection parameters, and compliant reporting templates.
Can video recordings be exported for external review or regulatory inspection?
Absolutely. All videos are saved in MP4 format with embedded timestamps and operator metadata; export is supported via USB drive or network transfer.
Is calibration traceable to national standards?
Yes—each unit includes a factory calibration certificate traceable to NIM (National Institute of Metrology, China) and optionally available with UKAS or NIST-traceable certificates upon request.
What maintenance is required for long-term accuracy?
Annual verification using certified reference materials (e.g., indium, tin, zinc) is recommended; no consumables or fluid replacements are needed due to the dry cup-and-ball design.
How does the system handle ambient temperature fluctuations during testing?
The WQD-360 incorporates active thermal shielding and real-time ambient compensation algorithms to minimize drift, maintaining ±0.1 °C repeatability even in non-climate-controlled lab environments.