S.M. Scientific Instruments (P) LTD

Fan Filter Unit SMI-156FFU

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Fan Filter Unit SMI-156FFU



The Fan Filter Unit (hereafter referred to as FFU) is air clean equipment with a built-in fan, typically placed on a modular T-Grid. It find extensive application in electronics and biological industries, where an air clean environment is essential. 

  • It adopts an AT fan with low noise and high efficiency, which JINDAL especially designed for FFU. It features energy-saving with low carbon emissions, requires no maintenance, and offer high reliability and a long life
  • Optimized capacity and distributaries guided whirl tube reduce the overall height and enhance the uniformity of air blow-out.
  • A large suitable interval of air velocity and volume (refer to the operating curve) can meet the requirements of different types of clean environment. It is also suitable for use in area requiring high air velocity, such as class A area in biology and pharmacy
  • It adopts low resistivity filter that can provide 75-120Pa excess pressure outside the product under rated airflow, which meets the need of high resistivity of return air in the clean room
  • Multi-optional and flexible layout


  • Standard configuration: HEPA (H13、H14) 
  • Optional: ULPA (U15、U16)


  • Standard configuration: AT Fan DCBL motor
  • Standard configuration: AT Fan AC motor

Material Of Case:

  • Standard configuration: Al-Zn coated steel sheet
  • Optional: SUS304 or SUS430
  • Optional configuration: pre-filter, fault alarm, single stand outlet (with plug)
  • Control mode of FFU is optional

DCBL motor:-

Single control:

  • Standard configuration: speed controller
  • Optional: three/five speed controller or variable speed controller

Group control:

  • Cloud technology computer monitoring and control system
  • The master-slave control system

 AC motor:-

Single control:

  • Standard configuration: terminal block or speed controller
  • Optional: three/five speed controller

Group control:

  • Cluster computer monitoring and control system
  • The master-slave control system

Technical Data


SMI-156FFU-4 X 2

SMI-156FFU-4 X 3

SMI-156FFU-4 X 4

Size of the case (L X W X H) 

1175 X 575 X 215 mm

(46.3” X 22.6” X 8.5”)

1175 X 875 X 215 mm

(46.3” X 34.5” X 8.5”)

1175 X 1175 X 290 mm 

(46.3” X 46.3” X 11.4”)

 Size of HEPA Filter 

1170 X 570 X 69 mm

(46.1” X 22.4” X 2.7”)

1170 X 870 X 69 mm

(46.1” X 34.3” X 2.7”)

1170 X 1170 X 80 mm

(46.1” X 46.1” X 3.1”)

Air Velocity

0.35 to 0.45 m/s

0.35 to 0.45 m/s

0.35 to 0.45 m/s

Rated Power of DCBL

50 to 85 W

55 to 89 W

76 to 120 W

Rated Power of AC

≤100 W

≤130 W

≤200 W


48 dB(A)

54 dB(A)

56 dB(A)

Material of Case

Al-Zn Coated Steel Sheet/SUS304/SUS430

Power Supply

AC220V, 1φ, 50Hz

Excess Pressure Outside the Product

50 to 120 Pa

Blower Type




Filter Grade


Optional Filter Garde


Loose of Pressure of Filter

88 to 120 Pa


Non-flammable glass fiber  

Frame of Filter

Anodization of aluminum alloy

Filter Screen

Double side 

Speed Control

Three/Five Speed Controller/including variable Speed Controller

Complete Weight

29 Kg

43 Kg

50 Kg


Pre. Filter


EBM Fan can be choose

Product Brochure

Product Brochure Link here