BasicLINE: Spray gun: KAA 1300 (Airless)

Typical coating materials include varnishes, paints, water-thinnable coating systems, adhesives, oil and release agents. Abrasive materials can also be processed at operating pressures below 5 MPa (50 bar). The automatic spray gun works on the Airless principle: the spray jet is generated solely by the material pressure, which forces the material through a nozzle. After leaving the nozzle, the spray jet takes the shape defined by the nozzle and is directed at the workpiece. The effective spray jet is slightly narrower than theoretically possible.

The particles of the spray jet reach much higher speeds than in compressed air-powered sprayers. The material flow rate is accordingly higher and the beam sharper, i.e. the turbulence zone is lower. The extent and shape of the beam can only be changed by changing the nozzle. The diameter of the nozzle bore determines the amount of material flow, size and geometry of the always elliptical shaped nozzle opening determine the height and width of the beam (form of an elliptical cone). There is a large number of airless nozzles available.

The nozzle can be continuously rotated 360° in the axis of the spray jet and locked in any position. This allows the angle at which the beam hits the workpiece to be optimally adapted to the respective conditions.