Longer Super Air Knives Cover Wide Spans, Resist Temperature and Corrosion

EXAIR has expanded Stainless Steel Long Super Air Knives to include a maximum length of 108″ (2743mm) and is manufacturing all air knives 60″ (1524mm) and longer, which used to be two pieces, in one piece construction which eases installation and saves space. The corrosion resistant design ensures seamless airflow and withstands temperatures up to 800°F (427°C). Super Air Knives produce a laminar sheet of airflow to blow off, dry or cool large surfaces up to 108″ (2743mm) wide. The energy efficient design minimizes compressed air use by entraining 40 parts room air to one part compressed air. It is ideal for blowing corrosive chemicals off parts, drying food products and cooling hot materials such as molten glass, castings and molded parts.

EXAIR has expanded Stainless Steel Long Super Air Knives to include a maximum length of 108″ (2743mm) and is manufacturing all air knives 60″ (1524mm) and longer, which used to be two pieces, in one piece construction which eases installation and saves space. The corrosion resistant design ensures seamless airflow and withstands temperatures up to 800°F (427°C). Super Air Knives produce a laminar sheet of airflow to blow off, dry or cool large surfaces up to 108″ (2743mm) wide. The energy efficient design minimizes compressed air use by entraining 40 parts room air to one part compressed air. It is ideal for blowing corrosive chemicals off parts, drying food products and cooling hot materials such as molten glass, castings and molded parts.


The Long Super Air Knives provide a uniform, high volume, high velocity curtain of air that is infinitely adjustable from a gentle blowing force to a hard-hitting blast of air. The compact profile measures 1.75″ x 1.44″ with compressed air inlets located on each end and the bottom to permit easy mounting in tight spaces. The Long Super Air Knife is quiet, maintenance free, has no moving parts to wear out, is CE compliant and meets OSHA safety standard 1910.242(b).

Super Air Knives are available from stock in Type 303 and Type 316 stainless steel. They are also available in Aluminum and PVDF. A factory installed plumbing kit is also available that makes it easy to connect Long Super Air Knives to any plant compressed air system and obtain the best performance.

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T.J. Davies' Retention Knobs

T.J. Davies' Retention Knobs

Our retention knobs are manufactured above international standards or to machine builder specifications. Retention knobs are manufactured utilizing AMS-6274/AISI-8620 alloy steel drawn in the United States. Threads are single-pointed on our lathes while manufacturing all other retention knob features to ensure high concentricity. Our process ensures that our threads are balanced (lead in/lead out at 180 degrees.) Each retention knob is carburized (hardened) to 58-62HRC, and case depth is .020-.030. Core hardness 40HRC. Each retention knob is coated utilizing a hot black oxide coating to military specifications. Our retention knobs are 100% covered in black oxide to prevent rust. All retention knob surfaces (not just mating surfaces) have a precision finish of 32 RMA micro or better: ISO grade 6N. Each retention knob is magnetic particle tested and tested at 2.5 times the pulling force of the drawbar. Certifications are maintained for each step in the manufacturing process for traceability.