Capture at Source Extraction Arms are used to capture airborn contaminants before the contaminants have a chance to reach the workers' breathing space
Available in several different designs

- internally supported
- externally supported
- telescopic
- mild or stainless steel construction

Lengths: Up to 45'

Diameters to suit Application: 2.5" through 8"

Typically the Extraction Arms are connected to a fixed extraction fan, Filter system or dust collector via direct mounting or a "Header Type" duct system.

Some important points to consider when selecting and/or ordering a System:

Are they easy to move?

Do they stay in place when positioned?

Are all sections of the arms counterbalanced?

How often do they need to be maintained and or adjusted?

Are they easy to maintain and adjust?


Here are some general design velocities when using "CAPTURE" Hoods:

Smoke (e.g. Welding):

Capture Velocity 100 FPM

Transport Velocity 3000 FPM

Minimun Face Velocity 2355 FPM

Dust (e.g. Grinding):

Capture Velocity 500 FPM

Transport Velocity 4000 FPM

Minimum Face Velocity 4000 FPM

Gas(e.g. V.O.C.'s):

Capture Velocity 50 FPM

Transport Velocity 2000 FPM

Minimum Face Velocity 785 FPM

For more info, please see the products and associated documentation listed below.