Air Knives

Filter

Air knives are ideal for delivering high-pressure laminar flow of air by producing high compression ratio. They can be used to blow away debris, dust and other contaminants from surfaces, such as in machinery and conveyor systems.

EXAIR -

Air Knives

StyleModelPrice (inc. GST)
A112018 SGD 1818.84
A112030 SGD 2470.35
A112036 SGD 2877.32
A112048 SGD 3783.00
A112006 SGD 1250.53
A112012 SGD 1539.19
B110084 SGD 4690.36
EXAIR -

Air Wipes

StyleModelAir ConsumptionInside Dia.Max. dBAOutside Dia.TypePrice (inc. GST)
A240013.9 scfm0.500"64 at 80 PSI3-1/4"General Purpose SGD 710.61
A240119.1 scfm1"64 at 80 PSI3.75"General Purpose SGD 840.42
A240229.5 scfm2"64 at 80 PSI4.75"General Purpose SGD 1106.12
A240339.8 scfm3"79 at 80 PSI5.75"High Efficiency, General Purpose SGD 1796.80
A240450.2 scfm4"81 at 80 PSI6.75"High Efficiency, General Purpose SGD 2486.12
EXAIR -

Air Wipe Kits

StyleModelAir ConsumptionInside Dia.Max. dBAOutside Dia.TypePrice (inc. GST)
A245013.9 scfm0.500"64 at 80 PSI3-1/4"General Purpose SGD 1216.09
A245119.1 scfm1"64 at 80 PSI3.75"General Purpose SGD 1315.22
A245229.5 scfm2"64 at 80 PSI4.75"General Purpose SGD 1579.51
A245339.8 scfm3"79 at 80 PSI5.75"High Efficiency, General Purpose SGD 1934.00
A245450.2 scfm4"81 at 80 PSI6.75"High Efficiency, General Purpose SGD 3003.22
EXAIR -

Compact Air Knives, dBA, 1/4 Inch Inlet

Exair standard air knives are suitable for cooling, part drying or cooling off parts or items, as they move along the conveyor system. These air knives utilize the coanda effect to create air movement in their surroundings and deliver a uniform sheet of laminar airflow across the entire length with hard hitting force. They are engineered to significantly reduce compressed air usage and reduce the noise level up to 10 dBA, as compared to other "homemade" blowoff devices. These units are constructed of aluminium / stainless steel material for maximum corrosion resistance and are easy to install. Variants are available in air consumption rates ranging from 8.7 to 156 SCFM.

StyleModelAir ConsumptionMaterialMax. Temp.Number of InletsOverall DepthOverall ThicknessOverall WidthPrice (inc. GST)
A1100038.7 scfmAluminum180 F41.75"1.44"3" SGD 478.87
B110003SS8.7 scfmStainless Steel800 F41.44"1.03"3" SGD 784.06
A11000617.4 scfmAluminum180 F41.75"1.44"6" SGD 551.77
B110006SS17.4 scfmStainless Steel800 F41.44"1.03"6" SGD 968.83
A11000926.1 scfmAluminum180 F41.75"1.44"9" SGD 687.90
B110009SS26.1 scfmStainless Steel800 F41.44"1.03"9" SGD 1320.93
A11001234.8 scfmAluminum180 F41.75"1.44"12" SGD 718.33
B110012SS34.8 scfmStainless Steel800 F41.44"1.03"12" SGD 1405.48
A11001852.2 scfmAluminum180 F41.75"1.44"18" SGD 923.20
B110018SS52.2 scfmStainless Steel800 F41.44"1.03"18" SGD 1730.03
A11002469.6 scfmAluminum180 F41.75"1.44"24" SGD 1086.75
B110024SS69.6 scfmStainless Steel800 F41.44"1.03"24" SGD 2043.85
A11003087.0 scfmAluminum180 F41.75"1.44"30" SGD 1354.27
B110030SS87.0 scfmStainless Steel800 F41.44"1.03"30" SGD 2591.58
A110036104.4 scfmAluminum180 F41.75"1.44"36" SGD 1659.34
B110036SS104.4 scfmStainless Steel800 F41.44"1.03"36" SGD 3069.79
A110042121.8 scfmAluminum180 F41.75"1.44"42" SGD 1984.82
B110042SS121.8 scfmStainless Steel800 F41.44"1.03"42" SGD 3704.35
A110048139.2 scfmAluminum180 F51.75"1.44"48" SGD 2276.29
B110048SS139.2 scfmStainless Steel800 F51.44"1.03"48" SGD 4396.95
B110054SS156 scfmStainless Steel800 F51.44"1.03"54" SGD 4901.79
EXAIR -

High Efficiency Air Knife Kits, 1/4 Inch FNPT Inlet

Exair air knife kits are used to enhance the working mechanism of air knives for cleaning, drying, cooling or blowoff applications. These kits include a super air knife, shim set, filter separator and a pressure regulator. The super air knives are used for delivering a quiet, hard hitting curtain of air across the entire length for maximum efficiency. Shim set allows increase / decrease in the force & volume of both consumed air & output airflow. Filter separators are ideal for separating water, dirt and scale from compressed air & keeping output clean while pressure regulators (w/ coupler) adjust the pressure required at the point of use and relieve undue pressures on fittings, hoses and tools. All models are CE compliant and are available in overall widths ranging between 3 and 54 inches.

StyleModelAir ConsumptionMaterialMax. Temp.Number of InletsOverall DepthOverall ThicknessOverall WidthPrice (inc. GST)
A1102038.7 scfmAluminum180 F41.75"1.44"3" SGD 975.93
B110203SS8.7 scfmStainless Steel800 F41.44"1.03"3" SGD 1330.62
A11020617.4 scfmAluminum180 F41.75"1.44"6" SGD 1043.10
B110206SS17.4 scfmStainless Steel800 F41.44"1.03"6" SGD 1520.60
A11020926.1 scfmAluminum180 F41.75"1.44"9" SGD 1175.67
B110209SS26.1 scfmStainless Steel800 F41.44"1.03"9" SGD 1864.31
A11021234.8 scfmAluminum180 F41.75"1.44"12" SGD 1224.27
B110212SS34.8 scfmStainless Steel800 F41.44"1.03"12" SGD 1957.46
A11021852.2 scfmAluminum180 F41.75"1.44"18" SGD 1507.77
B110218SS52.2 scfmStainless Steel800 F41.44"1.03"18" SGD 2415.09
B110224SS69.6 scfmStainless Steel800 F41.44"1.03"24" SGD 2850.64
A11022469.6 scfmAluminum180 F41.75"1.44"24" SGD 1714.07
A11023087.0 scfmAluminum180 F41.75"1.44"30" SGD 2068.89
B110230SS87.0 scfmStainless Steel800 F41.44"1.03"30" SGD 3439.06
A110236104.4 scfmAluminum180 F41.75"1.44"36" SGD 2367.36
B110236SS104.4 scfmStainless Steel800 F41.44"1.03"36" SGD 3949.33
A110242121.8 scfmAluminum180 F41.75"1.44"42" SGD 2693.98
B110242SS121.8 scfmStainless Steel800 F41.44"1.03"42" SGD 4346.80
A110248139.2 scfmAluminum180 F51.75"1.44"48" SGD 3007.55
B110248SS139.2 scfmStainless Steel800 F51.44"1.03"48" SGD 4989.58
A110254156 scfmAluminum180 F51.75"1.44"54" SGD 3372.17
B110254SS156 scfmStainless Steel800 F51.44"1.03"54" SGD 6008.97
EXAIR -

Air Knife 1/4 Inch Npt 54 Inch Length Aluminium

ModelItemPrice (inc. GST)
10054AE9GCQ SGD 2661.27

Air Knives

Choose from a wide range of air knives, air wipes, static eliminating air knives and kits by Exair and Approved Vendors. Air knives are designed to produce a high-pressure laminar flow of air by producing an excellent compression ratio. They are ideal for use in cooling systems, blowing off liquid & debris from products and conveyor line applications. Exair's super air knives deliver a uniform streamline flow with 40:1 compression ratio & air inlet ranging from 8.7 to 156 SCFM, thereby producing a hard hitting blow. They feature aluminium or stainless steel bodies to handle the high compression ratios and 4 to 5 inlet ports for air intake. Depending upon at the material, they can handle airflow temperatures up to 800 deg F. Air wipes by Exair are an annular form of air knives and are designed to serve as an efficient blow-off system. These air wipes feature aluminium bodies with 1/4 inch NPT inlet ports and ring diameters ranging from 0.5 to 4 inches. These air wipes and knives are further offered in kits.

Working Mechanism

  • Air knife's plenum chamber is filled with compressed air that flows through an inlet and is directed toward a slotted orifice.
  • A flat surface directs the primary airflow in a perfectly straight line as it exits the thin slotted nozzle and creates a uniform air sheet around the knife's entire length.
  • By entraining the room air into the primary airstream at a 40:1 compression ratio, velocity loss is minimised & force is maximised, resulting in a perfect laminar airflow sheet with hard-hitting force and reduced wind shear.

Frequently Asked Questions

How do I control the air pressure and flow rate of an air knife?

  • Air pressure and flow rate can be controlled using various methods, depending on the specific air knife and its application.
  • Some common methods include using a regulator, compressor and a filter for controlling the air pressure and using a restriction orifice or a valve to control the air flow.

How much pressure should be used on these air knives?

250 PSIG.

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