HAUG,Air,Knife,Ionizer,Coanda Effect

HAUG North America
1200 AEROWOOD DR UNITS 14 & 15
MISSISSAUGA ON L4W 2S7
TEL: 905 206-9701 FAX: 905 206-0859


Home | Discharge Systems | Air Supported Discharge | Ex Range |Charging Systems
Products | Measuring & Testing | About Us | Contact | Representatives

HAUG Air Knife

HAUG Air Knife

The HAUG Air Knife

The Coanda Effect

Branches

Possible Air Knife configurations

Technical illustration

 

 
The Air Knife
This is part of the air lock group of components. As the name already indicates, it is a type of ionizer which is supported by air flows. The effectiveness of the Air Knife can be explained by the special design of the air discharge nozzle which creates the  so-called Coanda Effect.
 
The Coanda Effect
In contrast to full flow nozzles, ionized air is discharged from a slotted nozzle, creating a flat jet flow.		   Air flow (Luftstrom) without deflection due to uniform injection
The special construction on the underside of the knife effects a single-sided reduction in the injection (air suction from the atmosphere) which creates a vacuum and ensures that ionized air is directed to the material track.
 
Oben = Top
Schlitzdüse = Slotted nozzle
Ablenkung = Deflection 
Unterdruck = Vacuum
Ionisierungsstab = Ionizing bar
Ionisierter Luftstorm = Ionized air flow
  The COANDA effect
Air flow with deflection
Reducing the injection affords the air blast operated Air Knife ionization unit two particularly positive aspects:

1. The air discharge speed is increased, 
    resulting in increased effective depth. This 
    in turn permits a greater operating distance 
    of the Air Knife to the material line.

 
2. The slotted flow has a wider angle of 
    dispersion, which is expanded from 24° to 
    33°. A wider surface is therefore covered 
    with ionizing, neutralizing air.		  
Branches:
Plastic processing industry:
    Foil processing, packing machines, foil extruders etc.
Textile industry:
    Weaving mills, spinning mills, textile finishing etc.
Graphic industry:
    Screen and tampon printing machines, photographic and film processing machines, 
    folding machines etc.
Enamelling operations:
    Car paint operations, painting/enamelling of plastic parts etc.
 
Possible Air Knife configurations:
Air Knife 
+ Multistat power supply unit (for full electronic production monitoring)
+ VS Ionizing bar (specially for fast running machines)
or
Air Knife 
+ EN 8 power supply unit (Standard)+ RN Ionizing bar (Standard)
The scope of our possible configurations is more extensive than the above mentioned examples.
 
Technical illustration


Attachment nuts between the first and second clamping screw
  Laenge Auftragsbezogen = Customer specific length
(120 mm - 50 cm)
Befestigungsmutter = Attachment nut
Luftanschluss = Air connection
HS-Anschluss = HS connection
Anschlusskabel = Connecting cable
Stablaenge = Length of rod
Innengewind = Internal thread M 6
Blasrichtung = Direction of air blast

Air Line - Uno Air Lock | The Air Knife and the Coanda Effect
| Air Line - Duo Air Locks   | Needle ionizer | Air Line - Mini Air Lock



HAUG Air Knife