micro dispensing in perfection!
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<strong>micro</strong><br />
<strong>dispens<strong>in</strong>g</strong><br />
<strong>in</strong> <strong>perfection</strong>!<br />
1 µl ±1%
preeflow ®<br />
1K<br />
dispensers<br />
The brand with the systematic approach.<br />
preeflow ® - high-quality products rang<strong>in</strong>g<br />
from control units to dispensers that live<br />
up to our vision ‘small, precise, economical’.<br />
eco-PEN300<br />
m<strong>in</strong>. dos<strong>in</strong>g quantity<br />
0.001 ml<br />
volume flow<br />
0.12-1.48 ml/m<strong>in</strong><br />
weight<br />
approx. 380 g<br />
eco-PEN450<br />
m<strong>in</strong>. dos<strong>in</strong>g quantity<br />
0.004 ml<br />
volume flow<br />
0.5-6.0 ml/m<strong>in</strong><br />
weight<br />
approx. 410 g<br />
eco-PEN600<br />
m<strong>in</strong>. dos<strong>in</strong>g quantity<br />
0.015 ml<br />
volume flow<br />
1.4-16.0 ml/m<strong>in</strong><br />
weight<br />
approx. 750 g<br />
eco-PEN700 3D<br />
m<strong>in</strong>. dos<strong>in</strong>g quantity<br />
0.060 ml<br />
volume flow<br />
5.30-60.0 ml/m<strong>in</strong><br />
weight<br />
approx. 750 g
orig<strong>in</strong>al<br />
sizes<br />
preeflow ®<br />
EC200-K<br />
1K<br />
controllers<br />
EC200-B<br />
plug‘n‘dose
preeflow ®<br />
2K<br />
dispensers<br />
orig<strong>in</strong>al<br />
sizes<br />
eco-DUO450<br />
m<strong>in</strong>. dos<strong>in</strong>g quantity<br />
0.010 ml<br />
volume flow<br />
0.2-12.0 ml/m<strong>in</strong><br />
weight<br />
approx. 1,100 g<br />
eco-DUO600<br />
m<strong>in</strong>. dos<strong>in</strong>g quantity<br />
0.030 ml<br />
volume flow<br />
0.6-32.0 ml/m<strong>in</strong><br />
weight<br />
approx. 1,600 g<br />
NEW!
Precision mechanics coupled with the latest<br />
digital control - a perfect comb<strong>in</strong>ation.<br />
Designed to optimize your 2K process.<br />
preeflow ® - Micro<strong>dispens<strong>in</strong>g</strong> <strong>in</strong> <strong>perfection</strong>!<br />
preeflow ®<br />
2K<br />
controllers<br />
EC200-DUO<br />
NEW!<br />
plug‘n‘mix<br />
You can f<strong>in</strong>d more <strong>in</strong>formation<br />
about our 2K equipment and<br />
the other preeflow ® products<br />
on our website: www.preeflow.com
enefits<br />
and<br />
technology<br />
our vision -<br />
always a step<br />
ahead<br />
The medium is unaltered by this process. And<br />
simply by switch<strong>in</strong>g to reverse-flow, preeflow ®<br />
ensures a clean and controlled stop of material<br />
or medium. No drips, no mess - always!<br />
more than<br />
20 years<br />
<strong>dispens<strong>in</strong>g</strong><br />
experience<br />
100 %<br />
dos<strong>in</strong>g<br />
technology<br />
very easy<br />
handl<strong>in</strong>g<br />
world wide<br />
24/7<br />
support<br />
we focus<br />
on your<br />
solution<br />
Technology:<br />
The dos<strong>in</strong>g pr<strong>in</strong>ciple of preeflow ® dispenser is an endless<br />
piston dispenser.<br />
This special dos<strong>in</strong>g geometry allows an endless and pulsation<br />
free dos<strong>in</strong>g flow. The possibility of revers<strong>in</strong>g the dos<strong>in</strong>g flow<br />
(suckback) will prevent from dripp<strong>in</strong>g and leads to a perfect<br />
control of media str<strong>in</strong>g<strong>in</strong>g or dripp<strong>in</strong>g.<br />
endless<br />
piston<br />
pr<strong>in</strong>ciple<br />
INSIDE<br />
Especially sensitive fluids with high viscosity and fillers <strong>in</strong>side<br />
experience a gentle treatment due to the low shear stress and<br />
the low pressure.<br />
Therefore, it is: many tasks - one pr<strong>in</strong>ciple!<br />
preeflow ® one for all - conformal coat<strong>in</strong>g, seal<strong>in</strong>g, bond<strong>in</strong>g,<br />
<strong>micro</strong> dot, dam & fill, underfill, glob top.
Dos<strong>in</strong>g technologies <strong>in</strong> use:<br />
•<br />
preeflow ® endless piston pr<strong>in</strong>ciple by ViscoTec<br />
JET dispenser<br />
peristaltic pump<br />
auger valve<br />
time pressure dispenser<br />
needle valve<br />
0 100 1 000 5 000 10 000 50 000 100 000 500 000 1 000 000 viscosity<br />
(mPas/CPS)<br />
H 2<br />
O<br />
sauce<br />
MAYO<br />
water<br />
salad oil<br />
eng<strong>in</strong>e oil<br />
sauce<br />
strawberry milk<br />
ketchup<br />
mustard<br />
mayonnaise<br />
handcreme<br />
Dot size range:<br />
v: ml (shot volume)<br />
d: mm (diameter)<br />
v<br />
d<br />
v: 0.0001 v: 0.0003 v: 0.0005 v: 0.001 v: 0.003 v: 0.005 v: 0.01 v: 0.03 v: 0.05 v: 0.07 v: 0.1<br />
d: 0.73 d: 1.05 d: 1.24 d: 1.56 d: 2.25 d: 2.67 d: 3.37 d: 4.86 d: 5.78 d: 6.44 d: 7.26<br />
Bead size range:<br />
(mm)<br />
0.25<br />
0.5<br />
1.0<br />
1.5<br />
2.0<br />
2.5<br />
3.0
applications<br />
<strong>in</strong><br />
focus<br />
preeflow ® products offer the ideal properties<br />
to ensure that all relevant 1 & 2 component<br />
applications <strong>in</strong> several <strong>in</strong>dustries are perfectly<br />
dosed!<br />
max.<br />
particle<br />
size 1 mm<br />
endless piston<br />
pr<strong>in</strong>ciple<br />
<strong>in</strong>side<br />
Bond<strong>in</strong>g<br />
In the <strong>in</strong>dustrial world, the term of Bond<strong>in</strong>g refers to jo<strong>in</strong><br />
securely to someth<strong>in</strong>g else, especially by means of an adhesive<br />
or chemical substance, heat or pressure. In our case, any<br />
comb<strong>in</strong>ation of any type and roughness of materials could<br />
be jo<strong>in</strong>ed together through the application of adhesives. The<br />
bond<strong>in</strong>g therefore replaces more traditional technics such as<br />
rivet<strong>in</strong>g or weld<strong>in</strong>g.<br />
easy to<br />
<strong>in</strong>tegrate<br />
<strong>in</strong> mach<strong>in</strong>es<br />
high<br />
repeatability<br />
more than<br />
99 %<br />
reversible<br />
material<br />
flow<br />
Optical Bond<strong>in</strong>g<br />
Optical Bond<strong>in</strong>g is a process <strong>in</strong> which a clear adhesive is<br />
applied between the layers of glass <strong>in</strong> a touch screen display.<br />
The ma<strong>in</strong> goal of this bond<strong>in</strong>g process is to improve the<br />
performance of the display when outdoors. This procedure<br />
elim<strong>in</strong>ates the gap between the glass and the display. A great<br />
deal of importance is placed on dos<strong>in</strong>g precision <strong>in</strong> the field of<br />
smartphone and tablet manufactur<strong>in</strong>g <strong>in</strong> particular.
Conformal Coat<strong>in</strong>g<br />
A Conformal Coat<strong>in</strong>g is a protective coat<strong>in</strong>g which takes<br />
the form of a non-transparent or transparent varnish that is<br />
applied to all or parts of PCBs. The materials are usually high<br />
viscosity thermal or UV cur<strong>in</strong>g materials and are dosed onto<br />
the PCB us<strong>in</strong>g either a th<strong>in</strong> film or a thick film procedure.<br />
bead<br />
factor<br />
< 2 %<br />
no str<strong>in</strong>g<strong>in</strong>g<br />
nor dripp<strong>in</strong>g<br />
<strong>in</strong>dependent<br />
of pressure,<br />
temperature<br />
and time<br />
very wide<br />
viscosity<br />
range<br />
Dam & Fill<br />
In Dam & Fill applications, the primary aim is to protect<br />
highly complex assemblies. Firstly, a high viscosity barrier,<br />
known as the “Dam”, is applied to the surface to be sealed.<br />
Then the adjacent area is filled with a filler which provides<br />
protection and seal<strong>in</strong>g effect.<br />
rapid<br />
dos<strong>in</strong>g<br />
pulsation<br />
free<br />
liquids<br />
conta<strong>in</strong><strong>in</strong>g<br />
fillers
Glob Top<br />
Glob Top pott<strong>in</strong>g is designed to protect sensitive components,<br />
usually semiconductor chips, from mechanical stress such as<br />
vibrations or fluctuations <strong>in</strong> temperature. External environmental<br />
factors too, like moisture or corrosion, are thus prevented<br />
from hav<strong>in</strong>g an impact on the potted components. This effect<br />
is realised by apply<strong>in</strong>g a fluid res<strong>in</strong> matrix, mostly an epoxy<br />
res<strong>in</strong> adhesive, which is then cured.<br />
gentle<br />
product<br />
handl<strong>in</strong>g<br />
reproductible<br />
results<br />
pure<br />
volumetric<br />
dos<strong>in</strong>g<br />
Underfill<br />
easy to<br />
clean<br />
Underfill applications usually are used with isotropic conductive<br />
adhesives. In this case, the isotropic conductive adhesive<br />
provides the electrical connection from the <strong>micro</strong>chip to the<br />
substrate. As this adhesive is not applied over the entire surface,<br />
after the thermally or UV cur<strong>in</strong>g process, another fill<strong>in</strong>g of the<br />
hollow space is necessary, the so called “Underfill”.<br />
up to<br />
three shots<br />
per second<br />
exact<br />
volume<br />
control<br />
2K epoxy<br />
examples<br />
of<br />
materials<br />
UV & light cur<strong>in</strong>g<br />
toluene<br />
anaerobic<br />
seal<strong>in</strong>g agents<br />
1K epoxy<br />
heat cur<strong>in</strong>g<br />
shear-sensitive<br />
adhesives<br />
flavours<br />
high fill fluids<br />
thermal<br />
conductive<br />
paste<br />
gasol<strong>in</strong>e<br />
LED res<strong>in</strong>s
short and easily<br />
accessible<br />
fluid path<br />
self seal<strong>in</strong>g<br />
displacement<br />
system<br />
Micro Dispens<strong>in</strong>g<br />
Micro Dispens<strong>in</strong>g refers to the dos<strong>in</strong>g of fluid media <strong>in</strong><br />
volume of just a few <strong>micro</strong>litres. Other fields of application<br />
are, for example, bead dos<strong>in</strong>g, seal<strong>in</strong>g, dot dos<strong>in</strong>g, pott<strong>in</strong>g<br />
and 2 component applications. These applications <strong>in</strong> particular<br />
call for high levels of precision, repeat accuracy and reliability.<br />
watery to<br />
high viscous<br />
liquids<br />
pressure<br />
stable<br />
dos<strong>in</strong>g<br />
accuracy<br />
± 1 %<br />
Encapsulat<strong>in</strong>g<br />
Encapsulat<strong>in</strong>g is the process of apply<strong>in</strong>g a fluid seal<strong>in</strong>g<br />
compound to a small and def<strong>in</strong>e area on a component or on a<br />
surface. The seal<strong>in</strong>g compound protects the electrical<br />
component both <strong>in</strong> transports and from environmental <strong>in</strong>fluences<br />
such as vibration, shakes, humidity, dust and extreme<br />
temperature.<br />
Other benefits <strong>in</strong>clude an improved electrical <strong>in</strong>sulation, a<br />
higher safety aga<strong>in</strong>st damage as well as a better chemical<br />
resistance.<br />
solder paste<br />
RTV rubbers<br />
silver paste<br />
flux<br />
<strong>in</strong>dustrial oils<br />
perfume<br />
silicones<br />
isopropanol<br />
cosmetics & medic<strong>in</strong>es<br />
biotechnical suspensions<br />
pa<strong>in</strong>ts & <strong>in</strong>ks<br />
acetone<br />
MEK<br />
alcohol<br />
epoxy res<strong>in</strong><br />
electrolytic solutions<br />
grease<br />
braz<strong>in</strong>g paste<br />
thermal grease<br />
primer<br />
PU<br />
and<br />
many<br />
more...
Specialized dealer:<br />
asy dos<strong>in</strong>g technology<br />
asy handl<strong>in</strong>g, easy <strong>dispens<strong>in</strong>g</strong><br />
xact, precise dos<strong>in</strong>g<br />
ffective dos<strong>in</strong>g<br />
conomic, saves up to 30% of the medium<br />
More <strong>in</strong>formation: www.preeflow.com<br />
The Orig<strong>in</strong>al!<br />
ViscoTec Pumpen- u. Dosiertechnik GmbH<br />
Amperstr. 13 | 84513 Tög<strong>in</strong>g a. Inn | Germany<br />
E-Mail:<br />
Internet:<br />
mail@viscotec.de<br />
www.viscotec.de<br />
Telefon:<br />
Fax:<br />
+49(0)8631/9274-0<br />
+49(0)8631/9274-300
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