HM-WX6G+ Microbial Limit Filtration System

Product Introduction

The HM-WX6G+ is the fully-featured six-channel microbial limit filtration system manufactured by HM Instruments, representing the comprehensive integration of high-throughput parallel processing, intelligent digital control, and autoclavable stainless steel filter cup economics in one pharmaceutical QC instrument. Built on the negative-pressure membrane filtration principle, the instrument captures microorganisms from test solutions onto a 0.45 μm filter membrane for culture and colony enumeration. The six filtration positions double the per-batch sample throughput compared to triple-channel models, while the 5-inch color touchscreen provides programmable filtration timers, real-time channel status monitoring, and digital operation visibility — capabilities that address the documentation and traceability requirements of regulated pharmaceutical quality control. Each filtration position is equipped with an autoclavable Ø47mm/Ø50mm stainless steel filter cup rated for repeated 121°C high-pressure steam sterilization, eliminating disposable cup costs while maintaining validated sterility between tests. The dual built-in diaphragm pumps deliver stable vacuum with direct discharge, housed in a brushed L304 stainless steel enclosure. The touchscreen allows operators to set precise filtration durations independently for each channel, eliminating manual timing variability and supporting reproducible test conditions. With flow rates exceeding 1000 ml/min (no load) and 450 ml/min (full load) per filter head, the HM-WX6G+ efficiently processes high-volume pharmaceutical water testing programs with documented, operator-independent precision.

Applications / Testing Items

• Pharmaceutical water testing — high-volume PW and WFI microbiological limit examination with documented filtration parameters across multiple sampling points

• Medical device process water — batch microbiological monitoring with touchscreen-controlled timers for audit-ready documentation

• Food and beverage quality control — high-throughput microbiological screening of bottled water, beer, juice, and dairy products

• Disease control water surveillance — large-scale drinking water bacterial count and pathogen screening programs

• Chemical industry process water — microbiological testing across multiple plant water systems with instrument-controlled filtration

• Cosmetics testing — batch microbial limit examination of liquid formulations with documented test conditions

Functional Performance / Features

1. 5-inch color touchscreen — intuitive interface for setting per-channel filtration timers, monitoring status, and recording operation parameters for GMP traceability.

2. Six-channel parallel filtration — process up to six samples simultaneously, doubling throughput versus triple-channel models for high-volume testing programs.

3. Programmable filtration timers — set precise durations for each channel independently, eliminating operator-dependent timing variability for reproducible test conditions.

4. Autoclavable stainless steel filter cups (Ø47mm/Ø50mm, 100 mL) — repeated high-pressure sterilization cycles for validated GMP compliance and consumable cost elimination.

5. Dual built-in diaphragm pumps — stable, low-noise vacuum generation with direct discharge, no external vacuum flask required.

6. Touchscreen channel control — independent on-screen start/stop and timer settings for each of the six channels for flexible workflow management.

7. Flame sterilization compatible — filter heads support rapid flame sterilization between consecutive samples for cross-contamination control.

8. Anti-backflow protection — integrated check valves prevent liquid reversal across all six channels, preserving sample integrity.

9. L304 stainless steel housing — corrosion-resistant brushed finish, suitable for cleanroom installation and routine disinfection.

10. Direct discharge design — waste liquid drains directly without intermediate collection, simplifying setup and reducing contamination points.

11. High filtration flow rate — >1000 ml/min (no load) and >450 ml/min (full load) per filter head for efficient sample processing.

Main Parameters

Technical Parameters

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