Stainless steel air knife Model 2212SSDX Deluxe

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Overview
The Deluxe Standard Air Knife™ Kit includes a Standard Air Knife, EFC (Electronic Flow Control), Universal Air Knife Mounting System, shim set, filter separator and pressure regulator with coupler. The Standard Air Knife uses a Coanda profile to turn the primary airstream 90° and entrain ambient air at an approximate ratio of 30:1, producing a high-volume, focused airflow. Stock lengths range from 3" to 48" (76 mm to 1219 mm). Aluminum and Type 303 stainless steel constructions are available; custom sizes and materials can be supplied on request.

Applications

• Part drying after washing
• Sheet cleaning in strip mills
• Conveyor surface cleaning and debris removal
• Web drying or cleaning in coating/printing lines
• Part or component cooling
• Environmental separation and dust control
• Pre-paint blowoff and contamination control
• Bag opening and filling operations
• Scrap removal in converting processes

Advantages

• Air amplification up to approximately 30:1 for reduced compressed air usage
• Noise reduction up to 10 dBA compared with alternative fittings
• Available in aluminum or Type 303 stainless steel to match environment
• Compact profile with compressed air inlets at each end for easy plenum connection
• No moving parts for low maintenance
• Variable force and flow controlled by inlet pressure and EFC
• Stock lengths up to 48" (1219 mm) for continuous coverage

Materials

• Aluminum - Aircraft-grade aluminum body with plastic shim; suitable for general industrial environments where corrosion is not a primary concern. Stainless steel screws resist corrosion in damp locations. Maximum operating temperature ~180°F (82°C).
• Type 303 Stainless Steel - Preferred for mildly corrosive environments; offers good strength and temperature resistance up to ~800°F (427°C).

Models (Airflow Length / Product Codes)

• 3" (76 mm) — Air Knife only: 2003 | Standard Air Knife Kit: 2203 | Deluxe Kit: 2203DX
• 6" (152 mm) — 2006 | 2206 | 2206DX
• 9" (229 mm) — 2009 | 2209 | 2209DX
• 12" (305 mm) — 2012 | 2212 | 2212DX
• 18" (457 mm) — 2018 | 2218 | 2218DX
• 24" (610 mm) — 2024 | 2224 | 2224DX
• 30" (762 mm) — 2030 | 2230 | 2230DX
• 36" (914 mm) — 2036 | 2236 | 2236DX
• 42" (1067 mm) — 2042 | 2242 | 2242DX
• 48" (1219 mm) — 2048 | 2248 | 2248DX

Standard Air Knife Performance (summary)

• 20 PSIG (1.4 BAR) — Air consumption: 1.3 SCFM/in (37 SLPM/in); Velocity @ 6" from target: 4,000 FPM (20.3 m/s); Sound @ 3': 65 dBA; Force @ 6" from target: 0.45 oz/in (13 g/in)
• 40 PSIG (2.8 BAR) — 2.0 SCFM/in (57 SLPM/in); Velocity: 5,800 FPM (29.5 m/s); Sound: 74 dBA; Force: 1.1 oz/in (31 g/in)
• 60 PSIG (4.1 BAR) — 2.7 SCFM/in (76 SLPM/in); Velocity: 8,500 FPM (43.2 m/s); Sound: 80 dBA; Force: 2.0 oz/in (57 g/in)
• 80 PSIG (5.5 BAR) — 3.4 SCFM/in (96 SLPM/in); Velocity: 11,000 FPM (55.9 m/s); Sound: 83 dBA; Force: 2.7 oz/in (77 g/in)
• 100 PSIG (6.9 BAR) — 4.1 SCFM/in (116 SLPM/in); Velocity: 13,000 FPM (66.0 m/s); Sound: 86 dBA; Force: 3.3 oz/in (94 g/in)

How it works
Compressed air is supplied to a plenum and forced through a continuous thin nozzle along the knife length. The primary airstream adheres to the Coanda profile, is turned 90° and travels down the face of the unit; this flow entrains ambient air to produce the amplified output (typical amplification ~30:1 at standard operating distances).

Technical specifications

• Includes: Standard Air Knife, EFC (Electronic Flow Control), Universal Mounting System, shim set, filter separator and pressure regulator with coupler
• Air amplification ratio: ~30:1 (typical at 6" / 152 mm from target)
• Stock lengths: 3" to 48" (76 mm to 1219 mm); custom lengths available
• Materials: Aluminum (max ~180°F / 82°C) or Type 303 Stainless Steel (max ~800°F / 427°C)
• Noise reduction: up to 10 dBA vs alternative fittings
• No moving parts; compressed air inlets located at each end for easy connection
• Variable force and flow via inlet pressure and EFC
• Example SKU on page: P2203DX