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Super Finish 7000
1
2
3
6 45 3
2 1
GB
gener al vIew of appl Icat Ion
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 7000 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 eect of micro ne atomisation of the coating material.
As no air is used in this process, it is described as an AIRLESS
process.
This method of spraying has the advantages of nest 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.
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 7000 is an electrically driven high-pressure paint
spraying equipment.
The motor (Item 1) drives directly the hydraulic pump.
A piston (2) is moved up and down so that hydraulic oil is
moved under the diaphragm (3) which then moves.
In detail:
The downwards movement of the machine opens the disk in-
let valve (4) automatically and coating material is sucked in.
During the upwards movement of the diaphragm, the coating
material is displaced and the outlet valve (5) opens while the
inlet valve is closed.
The coating material ows 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 (6) limits the set pressure in the
hydraulic 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.