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Super Finish 23 Select
2.2.2
FILTERING
Sufficient filtering is required for fault-free operation. To this
purpose the unit is equipped with a suction filter (Item 1) and
an insertion filter in the spray gun (Item 2). Regular inspec-
tion of these filters for damage or soiling is urgently recom-
mended.
A high-pressure filter (Item 3) -available as accessory- is rising
up the filtering surface and will make the work more comfort-
able.
2
3.
DESCRIPTION OF UNIT
3.1
AIRLESS PROCESS
The main area of application are thick layers of highly viscous
coating material.
At the Super Finish 23 Select unit a diaphragm pump takes
in the coating materials and transports it via a high-pressure
hose to the spray gun with the airless tip. Here the coating
material atomizes since it is pressed through the tip core at
a maximum pressure of 25 MPa (250 bar, 3625 psi). This high
pressure has the effect of micro fine atomisation of the coat-
ing material.
As no air is used in this process, it is described as an AIRLESS
process.
This method of spraying has the advantages of finest atomisa-
tion, cloudless operation (depending of a correct unit adjust-
ment) and a smooth, bubblefree surface. As well as these, the
advantages of the speed of work and convenience must be
mentioned.
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3.2
FUNCTIONING OF THE UNIT
The following section contains a brief description of the tech-
nical construction for better understanding of the function:
Super Finish 23 Select is an electrically driven high-pressure
paint spraying equipment.
The electric motor (1) drives the hydraulic pump via planetary
gears (2). A piston (3) is moved up and down so that hydraulic
oil is moved under the diaphragm (4) which then moves.
In detail:
The downwards movement of the machine opens the disk in-
let valve (5) automatically and coating material is sucked in.
During the upwards movement of the diaphragm, the coating
material is displaced and the outlet valve opens while the inlet
1
valve is closed.
The coating material flows under high pressure through the
high-pressure hose to the spray gun and is atomized when it
exists from the tip.
The pressure control valve limits the set pressure in the hy-
draulic oil circuit and thus also the pressure of the coating
material.
A pressure change when the same tip is used also leads to a
change in the amount of paint atomized.
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4
GENERAL VIEW OF APPLICATION
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2
1
GB
39
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