Zhicheng ZHJH-C1118B Premium Vertical Laminar Flow Clean Bench

Overview

The Zhicheng ZHJH-C1118B Premium Vertical Laminar Flow Clean Bench is an ISO Class 5-certified personnel-protective and product-protective air filtration system engineered for critical aseptic operations in research, quality control, and manufacturing environments. It operates on the principle of unidirectional vertical laminar airflow: ambient air is drawn through a washable aluminum pre-filter, pressurized by a high-efficiency centrifugal blower, conditioned through an H14-grade HEPA filter (≥99.995% efficiency at 0.3 µm), and delivered as a uniform, particle-free downward stream across the entire 1800 mm work surface. This airflow pattern minimizes turbulence-induced cross-contamination and ensures consistent particle removal from the operator-facing zone—critical for cell culture, sterile pharmaceutical compounding, microbiological assay preparation, and sensitive instrumentation handling. The unit’s structural integrity, acoustic dampening design, and vibration-isolated base support GLP-compliant experimental repeatability and long-term operational stability.

Key Features

• Vertical laminar airflow architecture compliant with ISO 14644-1 Class 5 (formerly US FED STD 209E Class 100) performance criteria
• Digitally controlled, seven-step variable air velocity regulation (0.3–0.6 m/s), displayed via integrated LED interface for real-time monitoring and process documentation
• Self-balancing counterweighted sash window with smooth vertical travel and friction-lock positioning—enabling ergonomic access while maintaining airflow integrity
• Dual-side transparent acrylic viewing panels providing wide-angle visibility and natural light transmission without compromising containment
• 304 stainless steel work surface resistant to corrosion, thermal shock, and common laboratory disinfectants (e.g., 70% ethanol, sodium hypochlorite)
• Dedicated 254 nm germicidal UV-C lamp with independent interlock switch and timer—ensuring safe decontamination cycles prior to operation
• High-luminance fluorescent lighting (≥300 lx at work surface) with color temperature optimized for visual acuity during fine manipulation tasks
• Electrostatically powder-coated cold-rolled steel enclosure with streamlined aesthetic profile and reinforced structural frame
• Four omnidirectional locking casters enabling precise repositioning within regulated lab spaces and secure immobilization during operation

Sample Compatibility & Compliance

The ZHJH-C1118B accommodates standard biosafety and material handling workflows involving open petri dishes, tissue culture flasks, pipette racks, weighing balances, and small-scale analytical instruments. Its 1800 mm working width supports multi-user benchtop configurations or extended procedural sequences requiring lateral workspace continuity. All materials in contact with the airflow path—including gaskets, filters, and interior surfaces—meet USP Biological Reactivity requirements and are non-shedding per ISO 14644-1 Annex B. The unit conforms to national and international standards including GB/T 16292–2010 (Chinese pharmaceutical clean bench specification), JIS B 9920:2011 (Japanese laminar flow classification), and ISO 14644-1:2015 for cleanroom performance verification. Optional validation documentation packages—including IQ/OQ protocols and filter integrity test records—are available upon request to support FDA 21 CFR Part 11–aligned qualification processes.

Software & Data Management

While the ZHJH-C1118B operates via hardware-based analog-digital hybrid controls (no embedded OS or network interface), its LED display and stepwise velocity control enable manual logging of operational parameters into laboratory notebooks or electronic lab notebooks (ELNs). The system supports integration with external environmental monitoring systems via analog voltage output (0–10 V) for real-time airflow velocity tracking. All control logic and safety interlocks—including UV lamp shutoff upon sash opening and blower overtemperature cutoff—are hardwired per IEC 61000-6-2 EMC immunity standards. Audit trails for maintenance events (e.g., HEPA replacement dates, UV lamp hours) are maintained using standardized log sheets aligned with ISO/IEC 17025 and GLP record-keeping guidelines.

Applications

This clean bench serves validated applications across regulated and academic laboratories: aseptic transfer of mammalian and microbial cell lines; preparation of sterile media, vaccines, and parenteral formulations; environmental monitoring sample processing (air, water, surface swabs); calibration and handling of precision weighing equipment; microelectronics component assembly under particulate-controlled conditions; and routine QC testing in food, cosmetics, and diagnostics manufacturing. Its large footprint and single-sided configuration make it especially suitable for dedicated ISO Class 5 staging zones adjacent to biosafety cabinets or cleanroom anterooms.

FAQ

What ISO class does the ZHJH-C1118B achieve, and how is it verified?
It meets ISO Class 5 (≤3,520 particles/m³ ≥0.5 µm) per ISO 14644-1:2015, verified via certified particle counters during factory acceptance testing and recommended annually per ISO 14644-3.
Is the HEPA filter replaceable, and what is its rated service life?
Yes—the H14 HEPA filter is field-replaceable with standard tools; typical service life is 3–5 years depending on ambient particulate load and pre-filter maintenance frequency.
Does the unit comply with electrical safety standards for international use?
It is certified to GB 4706.1 (China), CE-marked per EN 61000-6-2/6-3, and compatible with 220 V ±10%, 50/60 Hz supplies; voltage conversion kits are available for 110 V markets.
Can the UV lamp be operated simultaneously with the laminar flow fan?
No—integrated safety interlocks automatically deactivate the UV lamp when the front sash is opened or the fan is running, preventing operator exposure.
What documentation is provided for regulatory submissions?
Standard delivery includes Factory Test Reports (FTR), HEPA filter certification (EN 1822-3), electrical safety compliance statements, and installation/operation manuals in English; GMP-aligned validation support packages are optional.