Deluxe Full-Flow Air Knife™ Kit
Applications
- Part drying after wash
- Sheet cleaning in strip mills
- Conveyor cleaning
- Web drying or cleaning
- Part or component cooling
- Environmental separation
- Pre-paint blowoff
- Bag opening/filling operations
- Scrap removal on converting operations
Advantages
- Up to 10 dBA noise reduction
- Reduced air consumption
- 30:1 air amplification
- Aluminum or stainless steel
- Compact, rugged, easy to install
- Stock lengths up to 48" (1219mm)
- No moving parts
- Compressed air inlets on each end
- Variable force and flow
Materials
Aluminum - The aluminum Full-Flow Air Knife is suited to a wide variety of environments where corrosion or contamination is not a factor. The aircraft grade aluminum construction with plastic shim is very durable for general purpose applications. Stainless steel screws are used to eliminate corrosion in damp locations. It can withstand temperatures up to 180°F (82°C).
Type 303 Stainless Steel - This is the most common grade of stainless steel. It offers good strength and is best suited to mildly corrosive environments. It can withstand temperatures up to 800°F (427°C).
The Super Air Knife provides the best performance with a 40:1 air amplification ratio, making it the most efficient. It is the best choice for all applications. The Super Air Knife has a laminar airstream that is uniform, forceful and quiet. Velocity is the highest of all three air knives. Air consumption is lowest of all three air knives. Compressed air inlets are provided on each end and on the bottom. Multiple Super Air Knives can be mounted “end to end” for longer lengths of uninterrupted airflow.
The Standard Air Knife provides good performance with a 30:1 air amplification ratio that is less efficient than the Super Air Knife. It is a good choice when a less expensive alternative is required. The Standard Air Knife has an airflow that is also uniform and forceful. It is louder and uses more compressed air than the Super Air Knife. Compressed air inlets are provided on each end. Overall length is 1" (25mm) longer than the airflow length.
The Full-Flow Air Knife provides good performance with a 30:1 air amplification ratio. The Full-Flow Air Knife is the least expensive and is a good choice for tight spaces. Force is less than the other two styles. Air consumption and sound level falls between that of the Super Air Knife and the Standard Air Knife. Compressed air inlet(s) are provided on the rear. Inlets are available on each end at a small additional charge, however they are not recommended for applications where uniform flow across the length is required.
If you have special requirements, please contact an Application Engineer to discuss it.
Air Knife Plumbing Kit - Full-Flow Air Knives that are 24" or longer must be supplied with compressed air at multiple inlets on the knife. The Air Knife Plumbing Kits prevent you from searching for the right fittings or using undersized air supply lines. They provide properly sized compressed air hose and fittings to interconnect the rear or end compressed air inlets for best performance. Plumbing kits for Full-Flow Air Knives include a pressure gauge to monitor pressure at the Full-Flow Air Knife, which is an indication of proper air supply. They also include nitrile/PVC hose and brass fittings.
Coupling Bracket Kits - Some applications require a Full-Flow Air Knife that is longer than our 36" (914mm) length. Coupling Bracket Kits that join two Full-Flow Air Knives together are available. The kit includes two rigid plates along with the assembly screws. All models include stainless steel screws.
Full-Flow Air Knives are available in three different model types:
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Airflow Length |
Full-Flow Air Knife only |
Full-Flow Air Knife Kit |
Deluxe Full-Flow Air Knife Kit |
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| 3" (76mm) | 2603 and 2603SS | 2803 and 2803SS | 2803DX and 2803SSDX | |
| 6" (152mm) | 2606 and 2606SS | 2806 and 2806SS | 2806DX and 2806SSDX | |
| 9" (229mm) | 2609 and 2609SS | 2809 and 2809SS | 2809DX and 2809SSDX | |
| 12" (305mm) | 2612 and 2612SS | 2812 and 2812SS | 2812DX and 2812SSDX | |
| 18" (457mm) | 2618 and 2618SS | 2818 and 2818SS | 2818DX and 2818SSDX | |
| 24" (610mm) | 2624 and 2624SS | 2824 and 2824SS | 2824DX and 2824SSDX | |
| 30" (762mm) | 2630 and 2630SS | 2830 and 2830SS | 2830DX and 2830SSDX | |
| 36" (914mm) | 2636 and 2630SS | 2836 and 2836SS | 2836DX and 2836SSDX | |
Full-Flow Air Knife Performance | ||||||||
| Pressure Supply | Air Consumption per inch (25mm) | Velocity @ 6" (152mm) from target | Sound Level @ 3' (914mm) | Force per Inch (25mm) @ 6" (152mm) from target | ||||
| PSIG | BAR | SCFM | SLPM | FPM | M/S | dBA | OUNCES | GRAMS |
| 20 | 1.4 | 1.1 | 31 | 3,000 | 15.2 | 64 | 0.4 | 11 |
| 40 | 2.8 | 1.8 | 51 | 5,000 | 25.4 | 72 | 1.0 | 28 |
| 60 | 4.1 | 2.4 | 68 | 7,500 | 38.1 | 76 | 1.6 | 45 |
| 80 | 5.5 | 3.1 | 88 | 10,000 | 50.8 | 80 | 2.3 | 65 |
| 100 | 6.9 | 3.8 | 108 | 12,000 | 61.0 | 83 | 2.9 | 82 |
12" (305mm) Full-Flow Air Knife tested with .002" (0.05mm) thick shim installed. | ||||||||
How the Full-Flow Air Knife Works |
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Compressed air flows through the inlet (1) into a plenum chamber. It is then throttled through a thin nozzle (2) extending the length of the Full-Flow Air Knife. This primary airstream adheres to the Coanda profile (3), which turns it 90° and directs the flow down the face of the unit. The primary stream immediately begins to entrain surrounding air (4), for an amplification ratio of 30:1 at 6" (152mm) away. |
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Full-Flow Air Knife Dimensions and Airflow |
 Aluminum Full-Flow Air Knife
 Type 303 Stainless Steel Full-Flow Air Knife
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Aluminum, Stainless Steel or PVDF Deluxe Super Air Knife Kits include the Super Air Knife, mounting bracket, EFC, filter, regulator and appropriate material shim set. -
Aluminum Full-Flow Air Knife Kit -
Plastic and Stainless Steel Full-Flow Air Knife Shim Set -
Stainless Steel Full-Flow Air Knife -
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Stainless Steel Full-Flow Air Knife Kit