Full-flow air knife Model 2618

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Description
The Full-Flow Air Knife borrows engineering elements from the Standard Air Knife while providing airflow across its entire length. Designed for installations with limited space, it offers a compact footprint and cost-effective performance. Available from stock in lengths from 3" to 36"; aluminum and Type 303 stainless steel constructions; custom sizes and materials available.

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 and filling operations
• Scrap removal on converting operations

Advantages

• Up to 10 dBA noise reduction compared to less-optimized designs
• Reduced air consumption
• 30:1 air amplification (typical)
• Available in aluminum or stainless steel
• Compact, rugged design; easy to install
• Stock lengths up to 48" (1219 mm) in some configurations
• No moving parts
• Compressed air inlets on each end (rear inlets standard; end inlets optional)
• Variable force and flow via shim sets

Materials

• Aluminum - aircraft-grade aluminum with plastic shim; stainless steel screws to reduce corrosion in damp environments; suitable for general-purpose applications; operating temperature up to 180°F (82°C).
• Type 303 Stainless Steel - common stainless grade offering good strength and resistance for mildly corrosive environments; operating temperature up to 800°F (427°C).

Models / Comparisons

• Super Air Knife - best performance with 40:1 air amplification; laminar airstream; highest velocity; lowest air consumption.
• Standard Air Knife - good performance with 30:1 air amplification; less efficient than Super Air Knife; higher air consumption and noise.
• Full-Flow Air Knife - good performance with 30:1 air amplification; least expensive option; suited to tight spaces; lower force than Super and Standard styles; air consumption and sound level fall between Super and Standard; compressed air inlet(s) provided on the rear (end inlets available at additional charge).

Accessories

• Universal Air Knife Mounting System - Model 9060; stainless steel construction; articulating for positioning; maximum extension 30" (762 mm); mounting requires 1/2" diameter hole or 1/2"-13 tapped hole; use multiple mounts for longer knives as specified by length ranges.
• Air Knife Plumbing Kit - required for Full-Flow Air Knives 24" or longer to supply compressed air at multiple inlets; includes properly sized hose, fittings and a pressure gauge; nitrile/PVC hose and brass fittings included.
• Coupling Bracket Kits - for joining two Full-Flow Air Knives for lengths longer than 36"; includes rigid plates and assembly screws; stainless steel screws included.
• Air Knife Shim Sets - shims set the exhaust gap; force and flow can be increased by adding shims; aluminum shim set includes .001" (0.03 mm) amber, .003" (0.08 mm) green and .004" (0.10 mm) tan shims; a red .002" (0.05 mm) shim is installed in aluminum units; stainless steel knives include a .002" (0.05 mm) stainless shim.

Systems (model availability by airflow length)

• 3" (76 mm) — Full-Flow Air Knife only: 2603 and 2603SS; Full-Flow Air Knife Kit: 2803 and 2803SS; Deluxe Kit: 2803DX and 2803SSDX.
• 6" (152 mm) — 2606 / 2606SS; Kit 2806 / 2806SS; Deluxe 2806DX / 2806SSDX.
• 9" (229 mm) — 2609 / 2609SS; Kit 2809 / 2809SS; Deluxe 2809DX / 2809SSDX.
• 12" (305 mm) — 2612 / 2612SS; Kit 2812 / 2812SS; Deluxe 2812DX / 2812SSDX.
• 18" (457 mm) — 2618 / 2618SS; Kit 2818 / 2818SS; Deluxe 2818DX / 2818SSDX.
• 24" (610 mm) — 2624 / 2624SS; Kit 2824 / 2824SS; Deluxe 2824DX / 2824SSDX.
• 30" (762 mm) — 2630 / 2630SS; Kit 2830 / 2830SS; Deluxe 2830DX / 2830SSDX.
• 36" (914 mm) — 2636 and 2630SS (note: verify SS part number); Kit 2836 / 2836SS; Deluxe 2836DX / 2836SSDX.

Performance (selected data for a 12" (305 mm) unit tested with .002" (0.05 mm) shim)

• 20 PSIG (1.4 BAR) — Air consumption: 1.1 SCFM per inch (31 SLPM); Velocity @ 6": 3,000 FPM (15.2 m/s); Sound level @ 3': 64 dBA; Force per inch @ 6": 0.4 oz (11 g).
• 40 PSIG (2.8 BAR) — Air consumption: 1.8 SCFM per inch (51 SLPM); Velocity @ 6": 5,000 FPM (25.4 m/s); Sound level @ 3': 72 dBA; Force per inch @ 6": 1.0 oz (28 g).
• 60 PSIG (4.1 BAR) — Air consumption: 2.4 SCFM per inch (68 SLPM); Velocity @ 6": 7,500 FPM (38.1 m/s); Sound level @ 3': 76 dBA; Force per inch @ 6": 1.6 oz (45 g).
• 80 PSIG (5.5 BAR) — Air consumption: 3.1 SCFM per inch (88 SLPM); Velocity @ 6": 10,000 FPM (50.8 m/s); Sound level @ 3': 80 dBA; Force per inch @ 6": 2.3 oz (65 g).
• 100 PSIG (6.9 BAR) — Air consumption: 3.8 SCFM per inch (108 SLPM); Velocity @ 6": 12,000 FPM (61.0 m/s); Sound level @ 3': 83 dBA; Force per inch @ 6": 2.9 oz (82 g).

Caractéristiques / Spécifications techniques

• Product name: Full-Flow Air Knife™
• Air amplification: 30:1 (typical at 6" from target)
• Stock lengths available from 3" to 36" (some advantages note stock lengths up to 48" / 1219 mm)
• Materials: Aircraft-grade Aluminum (with plastic shim) and Type 303 Stainless Steel
• Operating temperature: Aluminum up to 180°F (82°C); Type 303 SS up to 800°F (427°C)
• No moving parts
• Compressed air inlets on the rear; end inlets available optionally
• Available configurations: Air Knife only; Air Knife Kit (includes shim set, filter separator, pressure regulator with coupler); Deluxe Kit (adds EFC and universal mounting system)
• Typical sound levels and forces vary with supply pressure (see Performance block)