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Оборудование для ламинарного потока и ограничения
Шкаф биологической безопасности класса II типа A2
A recirculating Class II cabinet that combines inward face airflow, HEPA-filtered vertical downflow and filtered exhaust for three-way protection.
- Personnel Product and Environmental Protection
- HEPA-Filtered Downflow
- Negative-Pressure Contaminated Plenums
- Recirculating A2 Airflow
Введение продукции
The Type A2 cabinet draws room air inward at the front grille while HEPA-filtered downflow protects the work zone. A portion of the filtered air is recirculated and the balance is exhausted through a HEPA stage, either into the room or through an appropriate canopy connection. Contaminated plenums are maintained under negative pressure or surrounded by negative-pressure sections. The cabinet is selected and installed for biological particulate work; volatile chemical use requires a separately evaluated exhaust strategy.
Основные характеристики
Vertical filtered downflow limits cross-contamination across the product zone.
Negative-pressure plenum design provides a fail-safe boundary around contaminated air paths.
A motorized or counterbalanced sash maintains the selected operating height.
Independent inflow and downflow sensing supports real-time airflow monitoring.
Обеспокоенность клиентов продуктами
A Type A2 cabinet must balance operator capture and clean product downflow while keeping recirculated air paths safely enclosed.
Hands crossing the front grille disrupt containment.A properly sized grille and stable inflow maintain capture around normal arm movement.
Items block downflow and create cross-contamination zones.A wide supply diffuser and organized work layout preserve first-air paths.
Filter loading shifts the inflow/downflow balance.Separate airflow sensors and automatic blower control maintain the selected operating range.
The cabinet is used with unsuitable volatile chemicals.Application guidance distinguishes A2 biological particulate work from total-exhaust chemical handling.
Типичные приложения
Cell cultureClinical microbiologyNon-volatile biological sample preparationSterile biological product handling
Технические параметры
Typical configurable construction ranges for a Class II Type A2 biological safety cabinet are listed below.
| Основной материал | SUS304 single-piece work-zone liner with powder-coated steel outer shell and mineral-wool acoustic fan enclosure |
|---|---|
| Толщина панели | 30-60 mm double-wall cabinet and plenum sections |
| эффективная ширина | 900-1800 mm clear working width |
| Максимальная длина | Up to 2400 mm overall cabinet height |
| Толщина линий стали | 1.0-1.5 mm SUS304 inner liner; 0.9-1.2 mm outer steel |
| Плотность ядра | 80-120 kg/m³ mineral-wool acoustic infill |
| Теплопроводимость | 0.035-0.045 W/(m·K) for the acoustic infill |
| Поверхностная отделка | Fine-brushed SUS304 work zone with white epoxy-polyester outer coating |
| Объединенный тип | Welded inner liner with negative-pressure plenum joints and gasketed supply and exhaust HEPA frames |
| Customization | Доступно в зависимости от предполагаемого применения и операционной среды. |
Доступные варианты
900-1800 mm work widthsRoom exhaust or canopy connectionMotorized sashSingle-piece or segmented work tray
Planning a Class II Type A2 Biological Safety Cabinet specification?
Отправьте нам ваши габариты, условия монтажа, целевые показатели производительности и требуемую отделку поверхности.
