Three-quarter view of a replacement FFU backward-curved centrifugal fan impeller

클린룸 장비 예비 부품

FFU 팬 임펠러

A balanced backward-curved centrifugal wheel that replaces a damaged or contaminated FFU impeller while retaining the existing motor and housing.

Backward-Curved Blades
Low-Profile FFU Geometry
Balanced Rotating Assembly
Matched Hub Interface

견적 요청 제품 찾아보기

상품 소개

The FFU fan impeller converts motor rotation into the pressure and airflow required to move room air through the final filter. Its shallow centrifugal geometry suits the limited plenum depth of a ceiling-mounted fan filter unit. Backward-curved blades, a formed inlet rim and a rigid backplate guide air through the wheel while limiting recirculation. Replacement selection must match the original outside diameter, wheel depth, rotation direction, hub bore and motor speed so the assembled fan operates within its intended airflow range.

주요 기능

Backward-curved blades provide stable non-overloading centrifugal fan characteristics.

A shallow wheel profile fits compact ceiling FFU housings without obstructing the inlet path.

The formed rim and rigid backplate retain blade spacing during high-speed rotation.

Machined hub options match common direct-drive motor shafts and fastening methods.

고객 제품 관심사

Impeller geometry and balance directly affect FFU airflow, sound and motor loading.

A wheel with the wrong diameter or depth changes the fan operating point.Replacement dimensions are matched to the original wheel envelope and FFU inlet clearance.

Incorrect blade direction produces weak airflow and excessive turbulence.Clockwise or counter-clockwise blade orientation is selected for the installed motor rotation.

Hub mismatch causes runout or prevents secure shaft attachment.Bore, keyway, set-screw and bolt pattern options are configured for the original drive shaft.

An unbalanced replacement transmits vibration to the filter and ceiling grid.The completed wheel is balanced as a rotating assembly after blade and hub fabrication.

일반적인 응용 프로그램

Cleanroom ceiling fan filter unitsLaminar-flow workstationsMini-environment circulation modulesFFU preventive-maintenance replacement

기술 매개변수

Typical construction ranges for low-profile FFU centrifugal impellers are shown below.

핵심 재료	Formed aluminum alloy or galvanized-steel backward-curved blade assembly
패널 두께	60-180 mm nominal wheel depth
유효 폭	250-500 mm nominal outside diameter
최대 길이	Up to 500 mm overall impeller diameter
강철 면면 두께	0.8-1.5 mm formed sheet-metal blades and backplate
코어 밀도	2700 kg/m³ for aluminum or 7850 kg/m³ for steel components
열전도도 (Thermal Conductivity)	160-205 W/(m·K) for aluminum or 45-60 W/(m·K) for steel
표면 마무리	Natural aluminum or corrosion-resistant zinc-coated silver finish
접합 유형	Formed blade tabs or welded blade roots with machined bolted or set-screw hub
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

Aluminum or galvanized-steel constructionClockwise or counter-clockwise rotationCustom hub bore and fasteningMatched diameter and wheel depth

Planning a FFU Fan Impeller specification?

치수, 설치 조건, 성능 목표 및 필요한 표면 마감을 보내십시오.

우리 팀과 대화하십시오.