HengaoDe HAD-II Vertical Detergency Tester

Overview

The HengaoDe HAD-II Vertical Detergency Tester is an engineered laboratory instrument designed for standardized evaluation of detergent performance under controlled, reproducible washing conditions. It operates on the principle of mechanical agitation simulating domestic top-loading washing action—specifically replicating the hydrodynamic shear and particle suspension dynamics observed in conventional drum-type laundering. Six independent vertical-axis test units rotate synchronously via arc-tooth synchronous belts, ensuring identical thermal, mechanical, and temporal parameters across all samples. This parallel multi-unit architecture eliminates inter-test variability and enables statistically robust comparison of detergents, fabric substrates, or soil types per ISO 6330, ASTM D3136, and GB/T 13174—making it suitable for R&D laboratories, quality control departments, and third-party certification bodies conducting re-deposition, soil removal efficiency, and fabric care testing.

Key Features

• Simultaneous six-unit operation with independent yet synchronized rotational control, enabling high-throughput comparative analysis without cross-contamination.
• Integrated thermostatically regulated water bath (ambient to 85 °C) with dual 1 kW heating elements and ±0.5 °C stability—compliant with temperature tolerance requirements of ISO 6330 Annex A.
• Motor-driven vertical agitators operating at precisely adjustable speeds (30–220 rpm, ±1 rpm accuracy), calibrated to replicate realistic mechanical energy input during wash cycles.
• Open-frame stainless-steel workbench design with front-mounted temperature display and centralized control panel—facilitating real-time visual monitoring and ergonomic access to all test cups.
• Structural framework fabricated from welded square-section steel tubing; modular aluminum composite housing ensures rigidity, corrosion resistance, and serviceability.
• Compliance-ready construction: All electrical components meet IEC 61000-4 immunity standards; enclosure rated IP20 for laboratory indoor use.

Sample Compatibility & Compliance

The HAD-II accommodates standard textile swatches (e.g., cotton, polyester-cotton blends), synthetic soiled fabrics (ISO 105-C06, AATCC 130), and particulate soil models (carbon black, kaolin, hemoglobin-based soils). Its geometry supports ASTM D3574-compliant cup dimensions and fluid volume ratios (typically 1 L per unit). The system conforms to regulatory and industry-standard test protocols including ISO 6330 (Textiles — Domestic washing and drying procedures for textile testing), GB/T 13174 (Detergent detergency evaluation method), and EN 14906 (Surface active agents — Determination of detergency). Data generated is traceable to NIST-traceable temperature and rotational calibration standards, supporting GLP documentation and audit readiness.

Software & Data Management

While the HAD-II operates as a hardware-controlled benchtop instrument without embedded software, its mechanical repeatability and analog/digital instrumentation support full integration into LIMS and QA/QC workflows. Temperature and rotation data are logged via external digital recorders compliant with FDA 21 CFR Part 11 when paired with validated data acquisition systems (e.g., NI CompactDAQ or Keysight 34972A). Optional RS-485 or 4–20 mA analog outputs enable connection to SCADA platforms for continuous process monitoring in industrial detergent manufacturing environments. Calibration certificates—including as-found/as-left reports and uncertainty budgets—are provided with each unit shipment.

Applications

• Detergent formulation optimization: Quantifying surfactant efficacy, enzyme activity, and builder synergism across pH and temperature gradients.
• Quality assurance of commercial laundry products: Batch-to-batch consistency verification per internal SOPs aligned with ISO 9001 Clause 8.5.1.
• Fabric care product development: Assessing anti-graying, colorfastness retention, and pilling resistance under accelerated wash regimes.
• Regulatory compliance testing: Supporting claims validation for eco-label certifications (e.g., EU Ecolabel, EPA Safer Choice) requiring documented detergency metrics.
• Academic research: Enabling controlled studies on soil adhesion mechanics, micelle formation kinetics, and textile-fiber interaction modeling.

FAQ

Is the HAD-II compatible with automated data logging systems?
Yes—via optional 4–20 mA analog outputs or RS-485 Modbus RTU interface, enabling seamless integration with PLCs, DAQ systems, or LIMS.

Can the unit be operated at temperatures below ambient?
No—the system is equipped with heating-only thermal regulation; refrigerated operation requires external chiller coupling (not included).

What maintenance intervals are recommended for long-term reliability?
Belt tension verification every 500 operational hours; bearing lubrication and seal inspection annually; full calibration verification biannually per ISO/IEC 17025 guidelines.

Does the HAD-II meet CE or UL safety certification requirements?
The instrument complies with IEC 61010-1:2010 for laboratory electrical equipment; CE marking is available upon request with additional conformity assessment.

Are custom test cup geometries or material options available?
Yes—stainless-steel or borosilicate glass cups, alternative impeller profiles, and non-standard fluid volumes can be supplied under OEM engineering agreement.