Use For Intended Purpose - Krautzberger KS-1 Operating Instructions Manual

1. Use for intended purpose

The airless spray gun type KS is designed to allow coating of metal, plastic,
ceramics, wood and similar materials as well as other suitable surfaces. Typical
coating substances are, for example, lacquers, paints, water-soluble lacquer
systems, adhesives, oil, release agents etc. It is also suitable for the application of
abrasive materials at operating pressures below 5 MPa (50 bar).
The coating substance to be used is applied to the surface by moving the spray gun
by hand over the surface to be coated and pressing the trigger at the desired point.
The coating substance is fed to the spray gun in liquid form under high material
pressure.
SW = spray angle
TSB = theoretical spraying width
ESB = actual spraying width
A wide range of airless nozzles are available and can be obtained from Krautzberger
GmbH.
The spray gun is particularly suitable for use when relatively large material volumes per
time unit are to be processed. A further advantage compared to pneumatically operated
spray guns is that less spraying mist is created and a far higher percentage of the
material therefore reaches the workpiece. Circulation connection is also possible.
The spray gun works on the airless
principle - in other words, the spray jet is
generated exclusively by the material
pressure pressing the material through a
nozzle. After being discharged from the
nozzle, the spray jet takes on the shape
dictated by the nozzle. It is then directed
at the workpiece. The effective spray jet is
not quite as wide as theoretically possible.
The particles of the spray jet reach far
higher speeds than with pneumatically
operated spray guns. The material
throughput is correspondingly higher and
the jet more concentrated (in other words,
the "swirling zone" is smaller). The size
and shape of the jet can only be changed
by changing the nozzle. The diameter of
the nozzle borehole determines the
material flow volume. The size and
geometry of the constantly elliptically
shaped nozzle opening determine the
height and width of the jet (shape of an
elliptical cone).
The nozzle can be rotated steplessly by
360° in the axis of the spray jet and
secured in any position. This allows
optimum adjustment of the angle at which
the jet hits the workpiece to the respective
condition.
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