Animated diagram for Extraction Arms

Extraction Arms

1. What is an extraction arm?
Answer: An extraction arm is a Capture or receiving device designed to capture aerosols at the emission point before the contaminants have a chance to reach the workers' breathing space.
Typically, it is the 1st and most crucial part of an LEV or Local Exhaust & Ventilation system. NB: NB: Local exhaust ventilation can also be referred to as Process ventilation or Industrial Ventilation, or Local Control ventilation.
Available in several different designs:
  • Internally Supported
  • Externally Supported
  • Telescopic
  • Mild or Stainless Steel Construction
  • Lengths: Up to 45'
  • 2.5" to 8" Diameter's Available
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.

2. What applications are best served by extraction arms?
Answer: Here is a list: (List all of the Process linked to the catalogue solution called "Extraction arms")

3. Can "extraction arms" make toxic work places spaces safe from Airborne contaminants?
ANSWER: Yes, but only when systems the systems are designed, installed and used precisely. Unlike Dilution ventilation, Extraction arms can return significant energy savings and improvements in health and safety. However, the precision at which they must be designed, installed and used can be complex. Lev-co recommends that these three procedures OSHA's HOC(hierarchy of controls) and MOC (management of change) and PSR (Pre-start Safety review), when appropriate, should be used when selecting extraction arms as a capture method.

Here are links to examples of these 2 procedures:
OSHA Hierarchy of controls (https://www.osha.gov/sites/default/files/2019-03/health_hazards_workbook.pdf
MOC Management of change sample document (https://www.safer.ca/docs/safer_combustible_dust_management_of_change_handout.pdf)
PSR Pre-start Health and Safety review (https://www.osha.gov/sites/default/files/publications/osha3132.pdf)

4. What industries and environments are extraction arms used in?
ANSWER: Here are the various industries using extraction arms: (Show links to relevant industries)

5. What are the different types of extraction arms available?
ANSWER: See our offering of fume extractors here: (Show list from catalogue section)

5.5 What are the selection criteria that must be considered when selecting an extraction arm?
ANSWER: See Below:

  • Capacity (How much flow will the extraction arm handle?)
  • Capture velocity (can the extraction accommodate the required capture velocity to capture the aerosol?)
  • Easy to use (How many articulations/joints does the extraction arm have?)
  • Stay in place? (Does the extraction stay in place, how often do the joints need to be tightened?
  • Extension hoods (Do you need a large diameter extension hood, eg 36" diameter?) (Optional)
  • Can the extraction arm withstand the Pressure/abraision/corrosion/etc?

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What are the pros and cons of extraction arms versus other types of capture methods?
ANSWER: Pro's:

Remove airborne toxins at source before they enter any worker“s breathing zone
Low energy costs (Heat loss, electrical energy)
Allow the use of smaller filtration equipment
Well suited for "on-demand" controls allowing for greater flow at the source, yet lower overall flow
Some extraction arms allow the supporting of items like wire feeders, Compressed air cord reels and electrical cord reels for increased productivity
Better visibility through the addition of hood-mounted lighting solutions
Optimized hoods, large-diameter receiving hoods and hose extensions are effective solutions where capture or hood placement is difficult
hood can be rotated 90 degrees (perpendicular to the floor), eliminating shadowing
when used correctly, the operator can visually see the contaminant being safely drawn away from the process Con's:

Operator needs to be comfortable with the use of the arm to ensure adequate capture
Arms not always available in larger diameters for required capture velocity
Production time lost to place the extraction arm in place
Cannot always reach the point of emission
Worker buy-in is not always achieved due to lack of fume capture
Fugitive emission released into the workspace
Some extraction are not built to withstand the working environment
poor design can lead to excess capture velocity resulting in extra capture velocity (Shielding gases loss) and air noise.

01-001
FLEXI EXTRACTION ARM - DUST, FUMES & GASES TO 17’ - INTERNALLY SUPPORTED - 6.5'' Ø (650 CFM) & 8'' Ø (1000 CFM)
flexi-extraction-arm-internally-supported - Main Image
“Ready to install and use” FLEXI Extraction Arms are excellent solutions for capturing fumes and dust at source and exhausting to the atmosphere.

  • Black steel hood
  • Built in damper
  • Flameproof double skin flexible hose
  • Wall bracket
  • "Stay in place" Extractor arm
  • Optional components available such as: Exhaust Fan c/w motor overload, bird screen, backdraft damper, exhaust duct, wall flashing and extensions hoses and hoods are available.
Attachments
01-002
E-Z ARM - Sparks & Abrasion to 14’ - Hybrid Support - 7'' Ø (900 CFM)*
ez-arm-high-flow-and-pressure-extraction-arm - Main Image
The EZ-ARM High Flow Extractor is an excellent solution for most medium to high volume extraction applications.

The EZ-ARM High Flow Extractor is an excellent solution for most medium to high volume extraction applications. The arm comes complete with Airflow Systems' patented friction release pawl-and-sprocket design. This extraction arm engages positively when placed in its final position, yet offers no resistance when re-positioning is required. A large 13” Ø inlet hood with 360° flange handle allows simple positioning of the hood (versus single handle designs). This extractor comes in 3 lengths- 2m (7’), 3m (10’), 4m (14'), 6M (20'), 8M (26') - and 175mm (7”) diameter.
Attachments
01-003
E-Z ARM II - Bench or Desk Top to 8’ - Hybrid Support - 4'' Ø (300 CFM)
ez-arm-2-extraction-arm - Main Image
4” Ø externally supported fume exhaust arms. Simple, effective, and highly reliable devices used to remove smoke, fumes, dust, and dirt away from the work area.

Easy to maneuver exhaust arms, that can command a large work area allowing coverage anywhere within the range of motion. This extractor comes in 2 lengths; 1.5m (5’), and 2.5m (8’). It can be extended up to 42' by adding the appropriate boom extensions. This combination allows for high-volume collection with maximum reach. A large 8” Ø inlet hood with 360° flange handle allow simple positioning of the hood (versus single handle designs).
Attachments
01-004
E-Z Arm Jr. - Lab & Bench Top to 6’ - Externally Supported - 2.5'' Ø (150 CFM)
ez-arm-jr-extraction-arm - Main Image
2.5" diameter high-performance fume arm with external support joints.

3' or 5' long complete with angle cut nozzle. White tubes, hood and hose. (Does not include wall mounting bracket or motor/blower.)
Attachments
001 - Equipment Specification and Dimension Drawings:
004 - Product Videos:
006 - Local Exhaust and Ventilation Duct 3D Layouts:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):
01-005
Pro-Flex - All Applications to 30’ - Externally Supported - Diameter & Flow to suit
pro-flex-extraction-arm - Main Image
The externally supported PRO-FLEX Extraction Arm is a superior arm that comes complete with an advanced "parallelogram / counter balanced" design eliminating the need for continual adjustment of friction joints and allowing for unparalleled ease of use. The PRO-FLEX is an ideal solution for most "source-capture" applications.

It is not just a stretched out extractor arm. Two ball-bearing mounted horizontal arms with disc-brakes give an excellent horizontal maneuverability. It is also specifically recommended for applications requiring an "easy to position" extractor that does not require constant adjustment.
Pro-Flex Extractor Crane is the optimal solution when you need to cover large work areas. It come in 28 different configurations:
  • Lengths: 3M (10') -- 4M (14') -- 5m (17’) -- 6m (20') -- 7m (23’) -- 8m (26’) -- 9 m (30’)
  • Diameters: 100mm (4”) -- 125mm (5”) -- 160mm (6.5”) -- 200mm (8”).
01-006
Telescopic - Confined locations to 8’ - Hybrid Support - 4'' Ø (300 CFM) & 6'' Ø (600 CFM)
telescopic-extraction-arm - Main Image
The Telescopic Arms are well suited for workstations located against a wall. There are no obstructions inside the hose, improving airflow through the arm and simplifying cleaning and maintenance.

The Telescoping Arms are easily adjusted and have 360º rotation at the base joint. Very versatile and user-friendly. Telescoping Arms are designed to connect to new or existing ductwork, boom arms, or directly to Airflow collection and filtration units and are fastener-free in the air stream.
Attachments
001 - Equipment Specification and Dimension Drawings:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):
01-008
Super-Max - Stainless Steel Extraction Arms7' 10' 14’ - Externally Supported - 4'' Ø (300 CFM), 6.5'' Ø (650 CFM) & 8'' Ø (1000 CFM)
super-max-extraction-arm - Main Image
Stainless Steel Extraction arms with wall bracket.

Parallelogram design. Steel hood with combined universal- and spinning-joint. Flameproof PVC hose 120mm, 160mm, 200mm (5", 6.5”, 8") Ø* with internal steel spiral. Adapted for central or individual extraction fan.
Attachments
001 - Equipment Specification and Dimension Drawings:
004 - Product Videos:
006 - Local Exhaust and Ventilation Duct 3D Layouts:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):
01-009
H-MAX - Arm Extensions to 30’ - Externally Supported - 6.5'' Ø (650CFM) & 8'' Ø (1000 CFM)
h-max-extraction-arm - Main Image
The H-MAX Extension Boom is used to support single extraction arms in applications where you need to reach over long distances.

The H-MAX Extension Boom has a ball bearing articulation in the wall bracket which enables a 180º movement.
Attachments
003 - Client Installations - Case Studies with Photos:
003a - Client Installations - Case Studies with Video:
006 - Local Exhaust and Ventilation Duct 3D Layouts:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):
01-010
HERCULIAN Arm Extensions to 44’ - Externally Supported - 6.5'' Ø (650 CFM) & 8'' Ø (1000 CFM)
herculean-boom-extraction-arm - Main Image
The HERCULIAN Articulating Extension Boom is designed to be used in applications where you need to reach over very long distances.

The HERCULIAN Articulating Extension Boom can support any Pro-Flex Extraction Crane or H-MAX Articulating Extension Boom with a Flexi-I, Flexi-II or E-Z Arm at the end. The HERCULIAN Articulating Extension Boom has a ball bearing articulation in the wall bracket which enables a 180º movement.
01-097
ATEX-Mini-MAX D. 3inch, D. 4inch. Wall/Ceiling mounting 3ft 4ft 5ft long
atex-mini-max-extraction-arm - Main Image
Atex Certified Laboratory Extraction arms

To be used where gas and dust is generated
ATEX-Mini-Max extraction arms are designed to be used where gas and dust is generated. Foe
example by weighing, mixing and sampling.
Attachments
001 - Equipment Specification and Dimension Drawings:
01-099
Mini-FLEX D. 3inch, D. 4inch. Wall/Ceiling mounting 3ft 4ft 5ft long
mini-flex-extraction-arm - Main Image
Laboratory rated Extraction arms

Mini-Flex Extraction arms are designed to extract smoke, gas, and light dust from soldering, grinding, gluing, and laboratory work.
Attachments
001 - Equipment Specification and Dimension Drawings:
01-011
Accessories for Extraction Arms - Extension brackets, hoses, hood extensions…
extraction-arm-accessories - Main Image
Accessories for extraction arms such as:

  • Magnetic Nozzles
  • Hose extensions
  • Extension Hoods
  • Vehicle Exhaust accessories
  • Etc.
Products:
  • Dual magnet holder bracket.
Attachments
001 - Equipment Specification and Dimension Drawings:
001a - How to Install (How to install local exhaust system, Isometric and Exploded Views):
003 - Client Installations - Case Studies with Photos:
004 - Product Videos:
017 - LEV CAD Blocks (Auto CAD, RVT, SLDPRT):