HJ JC-900 Vertical Laminar Flow Clean Sampling Cart

Overview

The HJ JC-900 Vertical Laminar Flow Clean Sampling Cart is an ISO Class 5-certified mobile clean environment solution engineered for controlled sampling, aseptic handling, and low-risk material transfer in laboratories, pharmaceutical QC areas, and biotechnology preparation zones. Unlike fixed clean benches, the JC-900 integrates structural mobility with certified vertical laminar airflow—air drawn through a prefilter is pressurized by a digitally regulated centrifugal fan, then passed through a single 725 × 600 × 50 mm HEPA filter (≥99.995% efficiency at 0.3 µm), delivering uniform downward airflow across the entire work surface at 0.25–0.45 m/s. This unidirectional flow minimizes turbulent mixing and ensures consistent particle removal, maintaining ≤0.5 colony-forming units per Φ90 mm settle plate per hour under validated operating conditions. The unit complies with ISO 14644-1:2015 for cleanroom classification and GB/T 16292–2010 for microbial monitoring in pharmaceutical environments.

Key Features

• Vertically oriented laminar airflow architecture optimized for operator-facing contamination control and sample integrity preservation.
• Motorized dual-speed fan system with remote control interface enabling real-time air velocity adjustment (low/high modes) without physical access interruption.
• Full-height tempered glass sash with smooth vertical sliding mechanism—provides ergonomic access while preserving containment integrity during active sampling.
• Integrated uninterruptible power supply (UPS) compatibility for continuity of airflow during brief grid fluctuations or emergency transitions—critical for time-sensitive environmental sampling protocols.
• Structural frame fabricated from fire-retardant, non-shedding high-density board meeting UL 94 V-0 flammability rating and ISO 14644-1 particulate shedding requirements.
• Dual lighting configuration: 20 W daylight-balanced fluorescent lamp for visual inspection and 20 W germicidal UV-C lamp (254 nm) with safety interlock switch for pre-use decontamination cycles.
• Vibration-isolated base design achieving ≤5 µm half-amplitude across all three orthogonal axes—essential for microgravimetric sampling and sensitive weighing operations.

Sample Compatibility & Compliance

The JC-900 supports open-container sampling of powders, liquids, sterile devices, and environmental swabs under continuous ISO Class 5 conditions. Its 730 × 635 mm work area accommodates standard Petri dishes, 50 mL conical tubes, vial racks, and handheld pipettors without obstruction. All materials contacting the airflow path—including gasketing, filter housing, and interior paneling—are non-metallic, non-outgassing, and compliant with USP environmental control guidance for compounding aseptic preparations. The unit’s validation documentation package includes as-built airflow visualization reports, particle counter verification logs (per ISO 14644-3 Annex B), and microbial settle plate test records aligned with EU GMP Annex 1 requirements for Grade A environments.

Software & Data Management

While the JC-900 operates via hardware-based controls, its electrical architecture supports integration into facility-wide monitoring systems via optional analog 4–20 mA output for real-time airflow velocity and UV lamp status. All operational parameters—including fan runtime, UV exposure duration, and door position events—can be logged externally using third-party Building Management Systems (BMS) or LIMS interfaces. For audit readiness, the unit supports GLP-compliant record retention when paired with validated electronic logbook software adhering to FDA 21 CFR Part 11 requirements for electronic signatures and audit trails.

Applications

• Environmental monitoring sampling in Grade C/D cleanrooms prior to Grade A interventions.
• Aseptic transfer of reference standards and calibration materials in analytical labs.
• Preparation of microbiological media plates and inoculation of test organisms under controlled particle load.
• Field-deployable sampling cart for HVAC commissioning and ISO 14644-2 periodic requalification.
• Mobile sterile barrier for glovebox pre-screening and component staging in medical device manufacturing.

FAQ

Does the JC-900 meet ISO 14644-1 Class 5 certification requirements?

Yes—the unit is factory-validated to deliver sustained vertical laminar flow with ≤3,520 particles/m³ ≥0.5 µm, satisfying ISO 14644-1:2015 Class 5 (formerly Fed. Std. 209E Class 100). Certificate of Conformance and test report are provided with each unit.
Can the HEPA filter be replaced on-site without specialized tools?

Yes—filter access is via front-panel quick-release latches; replacement requires only a Phillips screwdriver and takes 250 Pa indicates replacement).
Is UV lamp irradiance intensity measured and documented per IEC 62471?

UV-C output is verified at installation using NIST-traceable radiometer; spectral irradiance at 254 nm is ≥100 µW/cm² at 1 m distance, classified as Risk Group 2 per IEC 62471. Safety interlock disables UV when sash is raised >50 mm.
What maintenance schedule is recommended for long-term performance stability?

Biweekly wipe-down with 70% IPA, monthly prefilter replacement, and annual HEPA integrity testing (via DOP/PAO scan) per ISO 14644-3 Section 8.3. Fan motor lubrication is sealed-for-life; no routine greasing required.