New Super Air Knife Technology for Wide Surface Coverage

3 Apr 08

New from Compressed Air Australia Pty Ltd

EXAIR’s new 54” (1372mm) Super Air Knife produces a laminar sheet of airflow to blowoff, dry or cool wide surfaces.  Ideal for parts, webs and conveyors, the energy efficient design minimises compressed air use by entraining 40 parts room air to one part compressed air.  At 80 PSIG, the sound level is extremely quiet at 77 dBA.

The 54” Super Air Knife directs the compressed air across a precise machined surface that ensures uniformity and low noise.  The compact 45mm x 37mm profile along with inlets on each end and the bottom permits easy mounting in tight spaces.  The Super Air Knife is maintenance free and has no moving parts to wear out.  Multiple units can be mounted end to end without dead spots.

How the Super Air Knife Works

Compressed air flows through an inlet into the plenum chamber of the Super Air Knife.  The flow is directed to a precise, slotted orifice.  As the primary airflow exits the thin slotted nozzle, it follows a flat surface that directs the airflow in a perfectly straight line.  This creates a uniform sheet of air across the entire length of the Super Air Knife.  Velocity loss is minimised and force is maximised as the room air is entrained into the primary airstream at a ratio of 40:1.  The result is a well defined sheet of laminar airflow with hard-hitting force and minimal wind shear.

Applications

DRY: The laminar airflow of the Super Air Knife is perfect for removing moisture prior to packaging, painting, labelling, bar coding and assembly.  Common applications include drying parts, rolled steel, circuit boards, webs, bottles, cans and more.  Velocity is easily adjusted from a “blast” to a “breeze” with a pressure regulator.

BLOWOFF: The Super Air Knife is ideal for blowing off chips, dirt or water from parts, webs or conveyors.  It delivers a uniform sheet of air that has the same force across the entire length.  The are no interruptions or “dead spots” which means all surfaces are dried or cleaned.

COOL: Large volumes of airflow can be generated in very tight spaces due to the compact size of the Super Air Knife.  Flow and force are easily controlled with a pressure regulator, allowing fast or gradual cooling.  Shims can be installed if additional hard-hitting velocity is required.

OPEN, FLOAT, SEPARATE: The uniform airflow exits the Super Air Knife in a perfectly straight line (does not deflect).  It is ideal for opening bags and pouches, floating webs, and keeping environments separate.
The Super Air Knife is available from stock in many lengths from 3” to 54” (76mm to 1372mm).  Construction is aluminium, suitable for most industrial applications, or stainless steel commonly used in food, pharmaceutical, and corrosive applications with temperatures up to 427°C.

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