FFU and Terminal Air Purification Equipment

Mobile Fan Filter Unit

A wheeled clean-air module with an onboard EC fan and HEPA or ULPA filter that can be positioned beside changing production or maintenance work.

Locking Cleanroom Casters
Battery-Ready EC Drive
Compact Wheeled Base
Adjustable Horizontal Supply

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Product Introduction

The mobile fan filter unit integrates a compact filtered-air cabinet, a protected electrical compartment and four non-marking cleanroom casters on one narrow trolley. A full-face diffuser supplies horizontal filtered air, while side handles and a low centre of gravity support controlled movement between workstations. The EC drive can operate from mains power or an optional low-voltage battery pack, allowing short-duration use where a cable would obstruct personnel or material flow. Brakes on two or four casters hold the module steady once the outlet is aligned with the protected operation.

Key Features

Non-marking swivel casters allow the clean-air source to follow changing assembly or maintenance activities.

A low-mounted battery compartment keeps the centre of gravity below the elevated filter face.

Recessed handles reduce contact with the diffuser and simplify controlled repositioning by one operator.

Variable EC speed permits the horizontal airflow to be reduced for close work or increased for a larger zone.

Customer Product Concerns

Temporary critical work needs a clean-air source that can move safely without sacrificing outlet stability or introducing a trailing-cable hazard.

A fixed FFU cannot follow maintenance work that moves between several tools.The caster-mounted cabinet can be rolled to the active location and locked in position.

A high filter module on a narrow cart can become unstable during turning.The battery and electrical mass sit low in a wide wheelbase to resist tipping.

Trailing mains leads cross operator aisles during short-duration interventions.An optional battery pack supports cordless operation for defined mobile work periods.

Uncontrolled wheels allow the clean-air face to drift away from the target process.Positive caster brakes secure the selected outlet position before work begins.

Typical Applications

Temporary aseptic interventionsEquipment maintenance protectionMobile electronics assemblySampling and inspection pointsEmergency local clean-air support

Technical Parameters

Representative construction ranges for a mobile horizontal-flow FFU are listed below.

Core Material	EC centrifugal fan, micro-glass HEPA or ULPA pack and powder-coated steel mobile chassis
Panel Thickness	420-650 mm cabinet depth including wheelbase
Effective Width	610-1220 mm active filter-face width
Maximum Length	Up to 1800 mm overall mobile unit height
Steel Facing Thickness	1.0-1.5 mm cabinet sheet with 2.0-3.0 mm structural base plate
Core Density	Approximately 90-120 kg/m³ compacted density of the final-filter pack
Thermal Conductivity	Approximately 0.035-0.043 W/(m·K) for the dry final-filter pack carried by the mobile FFU
Surface Finish	White low-shedding powder coat with blue handles and grey non-marking caster tyres
Joint Type	Gasketed service door and compression-seal filter frame on a welded caster base
Customization	Available based on the intended application and operating environment.

Available Options

Mains-only or rechargeable battery-ready supplyHEPA H14 or ULPA U15 filterTwo-wheel or four-wheel brake setAdjustable-height discharge frame

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