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Cleanroom Furniture and Stainless Steel Products
Laminar Flow Storage Cabinet
A Type 304L stainless storage cabinet with a top-mounted fan-filter unit and perforated shelves that maintain a continuous downward clean-air path around sensitive components.
- Top-mounted HEPA fan-filter unit
- Vertical single-pass airflow path
- Three adjustable perforated shelves
- Glazed doors with pressure display
Product Introduction
The laminar flow storage cabinet encloses sensitive parts beneath a top-mounted fan-filter unit. Filtered air enters across the full ceiling face, passes vertically through three adjustable perforated stainless shelves and exits through a perforated lower return grille. A slight positive pressure at the gasketed glazed doors reduces inward leakage while the fan operates. The Type 304L enclosure places the speed controller and differential-pressure display on a blue side service panel, away from stored components, and raises the working chamber on an integral stainless stand with non-marking leveling feet.
Key Features
Perforated shelves preserve the vertical flow path while allowing shelf height to match different component envelopes.
Glazed doors provide inventory visibility and close against continuous blue seals to limit uncontrolled bypass air.
A separate fan-speed control and pressure display allow the operator to observe filter loading without opening the chamber.
Customer Product Concerns
Particle-sensitive parts can accumulate fallout during ordinary shelf storage even when the surrounding room is controlled.
Open shelving leaves critical surfaces exposed to settling particles between process steps.A continuously filtered vertical air stream washes the enclosed storage volume while the fan-filter unit is running.
Solid shelves interrupt downward airflow and create stagnant pockets around stored containers.Three perforated stainless shelves allow air to continue through each storage level toward the lower grille.
Repeated door opening is required to inspect stock in opaque filtered enclosures.Clear laminated doors reveal inventory and shelf occupancy without disturbing the chamber.
A hidden drop in airflow can go unnoticed as the filter loads over time.The exterior differential-pressure display provides a visible indication of resistance across the filter path.
Typical Applications
Semiconductor component stagingOptical assembly storageMedical-device work-in-process holdingPrecision instrument protectionCleanroom kitting and parts storage
Technical Parameters
Typical configurable specifications for a stainless vertical laminar flow storage cabinet are listed below.
| Core Material | Type 304L stainless steel enclosure with top-mounted HEPA fan-filter unit, laminated-glass doors and three adjustable perforated shelves |
|---|---|
| Panel Thickness | 1.2–1.5 mm enclosure panels, shelf pans and lower airflow grille |
| Effective Width | 1200 mm overall cabinet width |
| Maximum Length | 2000 mm maximum overall height including the fan-filter housing and raised stand |
| Steel Facing Thickness | 1.2–1.5 mm Type 304L stainless body, door frames, shelves and support stand |
| Core Density | 7900–8000 kg/m³ for Type 304L stainless steel |
| Thermal Conductivity | 14–16 W/(m·K) for Type 304L stainless steel |
| Surface Finish | Brushed stainless enclosure with clear laminated glazing, blue silicone door seals and cobalt-blue fan control panel |
| Joint Type | Seam-welded positive-pressure chamber with gasketed double doors, sealed FFU-to-ceiling flange, adjustable perforated shelf rails and lower exhaust grille |
| Customization | Available based on the intended application and operating environment. |
Available Options
HEPA or ULPA fan-filter moduleEC fan with variable-speed controlStatic-dissipative clear door panelsCaster base with battery backup
Planning a Laminar Flow Storage Cabinet specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
