Three-quarter overhead view of a modular FFU ceiling grid with four blue inlet fan filter units

FFU and Terminal Air Purification Equipment

FFU Ceiling Grid System

A sealed modular T-grid structure that coordinates FFUs, lights, blank panels and service modules while transferring their loads to wall supports or suspension rods.

Modular FFU Bays
Factory-Applied Gaskets
Integrated Utility Support
Replaceable Grid Components

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Product Introduction

The FFU ceiling grid system uses interlocking aluminium or stainless profiles to create repeatable bays for fan filter units, LED panels, blank tiles and utility penetrations. Factory-applied closed-cell gaskets seal the underside contact line, while splice clips, corner keys and hanger points maintain alignment across the ceiling field. Standard module pitches accept common FFU formats, and partial bays can be fitted with sealed infill panels. The system provides a coordinated structural and sealing interface; it does not replace the independent building structure required to carry the calculated ceiling loads.

Key Features

Repeatable metric or 2 × 4 ft bays allow FFUs and lights to exchange positions during a layout revision.

Continuous closed-cell gasketing limits bypass paths between the grid and drop-in components.

Interlocking splice hardware keeps exposed ceiling lines straight without bulky room-side fasteners.

Dedicated suspension and perimeter members separate component loading from cleanroom wall panels.

Customer Product Concerns

A dense FFU ceiling must remain sealed and visually aligned while carrying many service modules and still permitting future reconfiguration.

Small dimensional errors accumulate across a large ceiling and prevent FFUs from dropping into their bays.Factory-sized main runners, cross tees and positive splice keys hold a repeatable module pitch.

Air leaks through hard contacts between filters, lights and bare T-bar flanges.A continuous closed-cell gasket creates a compressible seal beneath each drop-in component.

Replacing one FFU requires dismantling neighbouring ceiling sections.Independent bays and removable hold-down hardware allow a single module to be lifted or lowered.

Uncoordinated lights and service penetrations overload isolated grid members.Load paths, suspension points and utility bays are arranged within one ceiling support layout.

Typical Applications

Semiconductor ballroom ceilingsModular pharmaceutical cleanroomsMedical-device production suitesAerospace assembly clean zonesResearch laboratory cleanrooms

Technical Parameters

Typical material and module ranges for a gasketed FFU ceiling grid system are shown below.

Core Material	6063-T5 aluminium T-grid profiles with steel suspension rods and closed-cell PE or EPDM gaskets
Panel Thickness	38-75 mm nominal grid web depth
Effective Width	600-1200 mm standard module pitch with metric or imperial bay layouts
Maximum Length	Up to 6000 mm continuous primary runner length before a mechanical splice
Steel Facing Thickness	1.0-2.0 mm galvanized steel support plates or stainless component trays where fitted
Core Density	30-80 kg/m³ nominal density of the closed-cell perimeter gasket
Thermal Conductivity	0.035-0.060 W/(m·K) for the closed-cell grid sealing gasket
Surface Finish	Cleanroom-white powder-coated aluminium, clear anodized aluminium or brushed 304 stainless steel
Joint Type	Interlocking T-bar splice clips and corner keys with gasketed drop-in module seats
Customization	Available based on the intended application and operating environment.

Available Options

600 × 600 or 600 × 1200 mm baysWall-supported or rod-suspended layoutPowder-coated aluminium or stainless finishFFU, light, blank panel and utility modules

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