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Air Knife

What is an Air knife?

An Air Knife is a device that blows compressed air to clean industrial products. Air Knifes uses laminar airflow to create a curtain of air to dry, clean, remove excess oils, liquids and dust from your manufacturing conveyor applications. The Air Knives may also be used for: printing, labelling, product cooling and packaging. The Air Knife nozzle design utilizes the Coandă Effect discovery by Romanian inventor Henri Coandă.

How does an Air Knife work?

Advanced Air Knife Video

Air Knife Specifications

The Advanced Air Knife is available in thirteen standard IN-STOCK lengths of 2″ (51″), 3″ (76 mm), 6″ (152 mm), 8″ (203 mm), 9″ (229 mm), 12″ (305 mm), 18″ (457 mm), 24″ (610 mm), 30″ (762 mm), 36″ (914 mm), 42″ (1067 mm), 48″ (1219 mm), and 54″ (1372 mm).

The Regular Air Knife is available in twelve standard IN-STOCK lengths of 3″ (76 mm), 6″ (152 mm), 8″ (203 mm), 9″ (229 mm), 12″ (305 mm), 18″ (457 mm), 24″ (610 mm), 30″ (762 mm), 36″ (914 mm), 42″ (1067 mm), 48″ (1219 mm), and 54″ (1372 mm).

Advanced Air Knife Pressure Performance

What types of Air knives do we carry?

Advanced Air Knife

Regular Air Knife

The Advanced Air Knife provides the best performance with a 40:1 air amplification ratio, making it the most efficient Air Knife Streamtek offers.

The Regular Air Knife provides good performance with a 30:1 air amplification ratio that is less efficient than the Advanced Air Knife. Air consumption is ~3.4 SCFM per inch at 80 PSIG. The Regular Air Knife is a good choice when a less expensive alternative is required. It has slightly higher noise levels and uses more compressed air than the Advanced Air Knife.

(A) Compressed air enters the inlet at the rear or end ports and flows into a plenum chamber
(B) Surrounding air is entrained by the airflow producing an amplification ratio of 40:1 at a 6 inch distance which adheres to the coanda effect. The knife consists of a high-intensity, uniform sheet of laminar airflow sometimes known as streamline flow.
(C) The airflow now travels straight out of the Air Knife. The amplified air stream is a hard-hitting sheet of laminar flow with minimal wind shear, which reduces energy used in blow-off and cooling applications.

Regular Air Knife Video

(A) Compressed air flows through the inlet at the rear (or end) ports, and into a plenum chamber.
(B) As the compressed air stream leaves the Air Knife, the surrounding air is entrained into the airflow for an amplification ratio of 30:1 @ 6″ away and adheres to the coanda profile.
(C) The airflow now turns 90 and travels down the front face of the Air Knife. The amplified air stream is a hard-hitting sheet of laminar flow with minimal wind shear, which translated into reduced energy use in blow-off and cooling.

Regular Air Knife Pressure Performance

Industrial Air Knife Blower

Air Knife Drying Systems

Clean circuit board holes, flat sheet rubber and plastic; moulds.
Blow off liquid, chemicals, dirt, chips, and/or water prior to labeling or packaging.
Remove water, coolant, dust, and scrap in parts manufacturing and assembly operations.
Paper dust removal and control.

Bottles and cans, castings, sheet metal, and dip tank solution stripping.
Extrusions, wire, produce, wood preservative, drive-thru car wash, paint, coatings, and cloth.