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Online
Industrial Process Equipment |
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High
Quality Products - Long-Term Reliability |
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Super
Air Knife™ |
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Quiet, hard-hitting curtain
of air for blowoff, cleaning, drying and cooling.
EXAIR's Super Air Knife is a new
generation of air knife that dramatically reduces compressed air
usage and noise when compared to other blowoffs. The Super Air Knife
offers a more efficient way to clean dry or cool parts, webs or
conveyors. It delivers a balanced sheet of laminar airflow
across the entire length with hard-hitting force. Noisy blowoffs
become a whisper when replaced with this new, compact design.
Even at high pressures of 80 PSIG (5.5 BAR), sound level is surprisingly
quiet at 70 dBA for most applications! Amplification rations
(entrained air to compressed air) of 40:1 are produced. The
Super Air Knife meets OSHA dead-ended pressure and noise requirements
 Printable PDF File
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- Part drying
after wash
- Sheet
cleaning in strip mills
- Conveyor
cleaning
- Part
or component cooling
- Web drying
or cleaning
- Environmental
separation
- Pre-paint
blowoff
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- Quiet
- 70dBA for most applications
- Minimal
air consumption
- 40:1 air
amplification
- Balanced
airflow across entire length
- No moving
parts
- Aluminum
or stainless steel
- Compressed
air inlets on ends and bottom
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- Compact,
rugged easy to install
- Recessed
hardware for easy mounting
- Stock
lengths 3" to 42"
(107cm)
- Special
lengths available
- Unlimited
system lengths of airflow
- Variable
force and flow
- Maintenance
free
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Compressed air
flows through the inlet (1) into the plenum
chamber of the Super Air Knife. Multiple channels inside direct
the flow to a precise, slotted orifice. As the primary airflow
exits the thin slotted nozzle (2), it creates a uniform sheet
of air across the entire length that immediately pulls in
surrounding room air (3). Velocity loss is minimized by entraining
the room air into the primary airstream. The result is a well
defined sheet of laminar airflow with hard-hitting force and
minimal wind shear.
Most plants try to limit compressed air usage and
eliminate blowoffs that exceed OSHA noise level requirements.
The new Super Air Knife has been engineered to deliver a uniform,
high velocity, high volume sheet of air with low noise and minimal
air consumption. As shown by the chart, it's easy to see
why the Super Air Knife is the best choice for blowoff, cooling
and drying applications. The Super Air Knife reduces compressed
air usage by 15% when compared to EXAIR's Standard Air Knife or
by 63% when compared to a drilled pipe! Noise level of the Super
Air Knife is 6 times quieter than the Standard Air Knife and 11
times quieter than the drilled pipe! |
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Super Air Knife (top), Standard Air Knife
(middle) and drilled pipe (bottom).
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Specifications
The Super Air Knife is available
in nine standard lengths of 3", 6", 12", 18",
24", 30", 36" , 42" and 48" (7.5,
15, 30, 46, 61, 76, 91, 107 and 122cm) in Aluminum, and eight standard
lengths of 3", 6", 12", 18", 24", 30",
36" and 42" (7.5, 15, 30, 46, 61, 76, 91 and 107cm) in
Stainless Steel. Special lengths are available. Any number
of Super Air Knives may be installed across a given area.
Filtration:
The use of
clean air is essential. Kits include an automatic drain filter with
a 5 micron filter element that is sized properly for flow.
Materials of Construction:
The Super Air
Knife is available in either aluminum or stainless steel construction.
Mounting:
The Super
Air Knife can be supported by the compressed air pipe. Tapped holes
(1/4-20) on the bottom are also provided.
Regulation:
A pressure regulator
on the compressed air supply provides infinite control of flow,
force and air consumption. Kits include a pressure regulator that
is sized properly for flow.
Shim Sets:
The compressed
air exhausts through a gap which is set with a shim positioned between
the cap and the body of the Super Air Knife. Force and flow through
the Super Air Knife may be easily increased by adding shims to open
the gap. Kits include a shim set (three additional shims). |
| Compare
Blowoffs |
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Type of Blowoff
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Air
Consumption |
Sound
Level |
| Model
# |
Description
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SCFM |
SLPM |
dBA |
| 110018 |
18"
(46cm)
Super Air Knife |
52 |
1329 |
71 |
| 2018 |
18"
(46cm)
Std. Air Knife |
61 |
2234 |
87 |
| N/A |
18"
(46cm)
drilled pipe* |
141 |
3996 |
92 |
*
drilled pipe has (37) 1/16" (1.59mm)
holes on 0.5" (13mm) centers |
The
Super Air Knife uses 63% less air and is 11 time quieter than drilled
pipe! |
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| Dimensions
- Aluminum Super Air Knife |
Dimensions
- Stainless Steel Super Air Knife |
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