Weighing Booth Extractor

Weighing Booth Extractor is designed specifically for powder containment applications, the Powder weighing enclosure employs carefully directed inward airflow at the face of the enclosure to hazardous powders or potent pharmaceutical compounds. The aerodynamically designed enclosure reduces airflow turbulence for maximum containment while minimizing the effect that air drafts may have on sensitive weighing balances. The enclosure design exceeds the containment requirements of proven by independent type testing. All exhaust air is HEPA-filtered, removing virtually all particulate matter, before recirculation to the laboratory.

weighing booth extractor Unitis with a variety of standard dimensions also our cabinet can be custom engineered to any size. Weighing Booth Extractor available in powder coated Mild Steel, SS 304 / 316 / 316L or a combination of both.

Standard Model Available :
Model No. Working Area (mm) Airflow Velocity
(Down flow)
Air Cleanliness Air Flow
WBE-48-36 1260 X 955 X 2170 0.45±0.05mps/ ISO Class 5 (ISO 14644-1:1999 (E)) / Vertical -
WBE-48-48 1275 X 1260 X 2170 90(fpm) Class 100 (U.S. FED STD 209 E) Recirculatory
Technical Specification :
HEPA filter :
Imported Minipleat HEPA filter with hot melt technology, which conforms to EU-14 Grade at exhaust position with an efficiency rating better than 99.999% for 0.3µ.
Pre-filter : Prefilter are made from non-woven synthetic with HDPE mesh; conforms to EU 6 Grade, with an efficiency rating better than 95% down to 5µ.
Alower Assembly :
Motor blower designed of statically and dynamically balanced for supply of sufficient capacity and static pressure to take care of airflow requirement for entire life of HEPA.
Differential Pressure Gauge : Dwyer Make Magnehelic Gauge (0 -25 mm: 1 No.) to monitor pressure drop across HEPA filter.
Lighting : Fluorescent light (250 Lux) at work surface
ON/OFF Switches : SS ON/OFF switches for motor & lights
Switch Socket : 6/15 amp single-phase switch socket use for external equipment
Control System : Electrical control panel mounted on the side panel of the unit.
Door : SS 304 double walled door construction with flush glass view panels with door closer, SS handles and SS hinges
(Push type) :
Door release provides from the front of the unit.
DOP Port : DOP test port at upstream of HEPA filter to personnel for carrying out the HEPA filter integrity test.
Exhaust Duct : SS 304 1 ft long elbow duct for exhaust
Side Panel : SS 304 Double Walled Side Panels.
Electrical Supply : 230V AC 1Ø 50Hz / 415 V AC 3Ø 50 Hz
Noise Level : Less than 67 dB on scale ‘A’ when ambient is not greater than 55 dB on scale ‘A’
Vibration Level : Minimum
Optional Accessories :

Audio visual alarm indicating condition of HEPA filters

Clean down timer with operation hold indicator

VFD based control systems

Photohelic guage / Digital pressure gauge to monitor of pressure drop across filter.

SS Perforation table for keeping weighing scale/p>

Sodium vaporlamps

Flame proof fitting

Safe change bag in / bag out arrangement for filters

Double skin side panels with view windows

Service access from front / back / side

Horizontal internal coving at base