Full-Flow Air Knife™ – This low cost choice provides a curtain of air for blowoff, cleaning, drying and cooling.

Full-Flow Air Knife

What is the Full-Flow Air Knife?

EXAIR’s Full-Flow Air Knife is an effective way to clean, dry or cool parts, webs or conveyors. It utilizes the coanda effect to pull in large volumes of surrounding air, producing a high flow, high velocity curtain of air. The “Full-Flow” provides airflow across the entire length. A 12″ (305mm) Full-Flow Air Knife measures 12″ (305mm). It has the compressed air inlet(s) on the rear. Inlets are available on each end at a small additional charge but are not recommended when uniform airflow is required.

Specials are available. Please contact us!

Full-Flow Air Knife Performance with .002″ (0.05mm) thick shim installed

Pressure SupplyAir Consumption per inch (25mm)Velocity @ 6″ (152mm) from targetSound level @ 3′ (914mm)Force per Inch (25mm) @ 6″ (152mm) from target
PSIGBARSLPMM/SdBAGrams
201,43115,26411
402,85125,47228
604,16838,17645
805,58850,88065
1006,910861,08382
12″ (305mm) Full-Flow Air Knife Tested.
Note: Performance on lengths over 36″ will vary.

Aluminium Full-Flow Air Knife

Special Lengths Available – Contact us.

Aluminium Full-Flow Air Knife Dimensions

Steel Type 303SS Full-Flow Air Knife

Special Lengths Available – Contact us.

Steel Full-Flow Air Knife Dimensions
BSP Threads Available – Contact us.

Aluminum Full-Flow Air Knife Only
Full-Flow Air Knife LengthAluminiumStainless Steel
3″ (76 mm)26032603SS
6″ (152 mm)26062606SS
9″ (229 mm)26092609SS
12″ (305 mm)26122612SS
18″ (457 mm)26182618SS
24″ (610 mm)26242624SS
30″ (762 mm)26302630SS
36″ (914 mm)26362636SS

Shim Sets

A Full-Flow Air Knife has a .002″ (0.05mm) gap setting. This gap is set with a shim positioned between the cap and the body of the Full-Flow Air Knife. Force and flow through the Full-Flow Air Knife may be easily increased by adding shims to open the gap. Kits include a shim set. Shim sets for aluminum Full-Flow Air Knives include a .001″ (0.03mm), .003″ (0.08mm) and .004″ (0.10mm) thick plastic shim. Shim sets for stainless steel Full-Flow Air Knives include (1) .002″ (0.05mm) thick stainless steel shim.

Full-Flow Air Knife Shim Sets
Full-Flow Air Knife Shim Sets LengthAluminiumStainless Steel
3″ (76 mm)29032903SS
6″ (152 mm)29062906SS
9″ (229 mm)29092909SS
12″ (305 mm)29122912SS
18″ (457 mm)29182918SS
24″ (610 mm)29242924SS
30″ (762 mm)29302930SS
36″ (914 mm)29362936SS
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EXAIR’s EFC is an electronic flow control that dramatically reduces compressed air costs by turning off the compressed air when no part is present. This minimizes compressed air use for blow off, drying, cooling, conveying and static elimination operations. The EFC combines a photoelectric sensor with a timing control that limits compressed air use by turning it off when no part is present. Visit the EFC Page for more information.