Palstic Painting

EISENMANN
Plastics Painting
This is EISENMANN
EISENMANN designs and constructs plants for surface
engineering, material flow automation, environmental
engineering, firing lines for ceramics and specialized
plants for coating, recycling, heat treatment and energy
recovery.
Approx. 2400 employees worldwide, half of which are
engineers or technicians, develop new ideas for the
fields of production, painting, assembly or distribution.
Among them are experts and specialists with wellfounded know how in various areas of expertise and
industry sectors. An advantage that is
mirrored in tailored concepts with
state-of-the-art technology and a high
degree of economic efficiency.
Another result of our efficient production and assembly strategies: Our production centers are tailored to the
requirements of individual customers.
They facilitate the production of a plant
configuration especially adapted to your
needs.
When complex systems are involved,
we install the entire plant in our house
before we deliver it to put the plant
to the acid test. Only when the preassembled function modules have
passed the test run, will they be handed
over to the customer.
This method considerably saves time
and cost for assembly and facilitates
installation in your house without even
interrupting the production process.
EISENMANN Technology Center in Holzgerlingen
Of course we will assist you even after
commissioning, if you want: Our Aftersales Service provides for professional
maintenance, short repair times and
immediate procurement of spare parts.
Contents
Plastics Painting Systems
1
Pretreatment Plants
2
Spray Booths with Disposal Facilities 4
Practical Examples
6
Plastics Painting Systems
Having delivered more than 250 painting systems for
plastic parts, EISENMANN ranges among the leading
system supplier of the industry sector. Among the
plants delivered are the largest plants in Europe as well
as the smallest plant for golf balls and the first plastics
painting line for a consistent use of environmentallyfriendly water-based paint.
First-class surface engineering quality without rejects is
a demand placed on every painting system. Prerequisites are cleaning and pretreatment appropriate for the
material as well as utmost cleanliness in all plant areas.
material characteristics. Our customers paint glass-fiber
reinforced polyester parts, colored or crystal-clear
thermoplastics as well as foamed PUR parts. Examples
are passenger car attachment parts such as bumpers,
exterior mirrors or lenses, mounting parts for the
interior of passenger cars, TV and VCR housings, mobile
phones, sports equipment, phone booths and many
other pieces of equipment.
All the pretreatment, application, drying and material
flow plant components are exactly designed for the
different temperature sensitivities and deformation
characteristics of the respective workpieces.
For this reason, a primary objective is the consistent
enforcement of dust-protection measures. Examples are
enclosed plants with an optimally adjusted air balance,
bottom-mounted conveyor systems, air showers and
antistatic treatment of the workpieces with ionized air.
EISENMANN offers target-oriented material flow systems
with state-of-the-art control systems, automatic handling and user-friendly visualization systems especially
adapted to the special conditions of plastics painting.
Inside the spray booths, the paint mists are discharged
systematically through a vertical air conducting system.
Plastics painting lines are planned individually depending on the types of workpiece, throughput rates and
To reduce emissions and disposal cost for exhaust air
and waste water, we plan all the processes involved
with integrated environmental engineering systems
right from the start.
Highest quality can only be
achieved with utmost cleanliness, extensive supervision
and inspection, and perfect
systems engineering.
Robots have gained acceptance in almost all fields of plastics
painting. Even with small lot sizes and varying workpiece shapes
they are used more and more.
Always on the job:
EISENMANN environmental
engineering purifies exhaust
air and waste water.
1
Pretreatment Plants
To achieve optimum adhesion of the paint to the
plastic, workpiece-specific cleaning and pretreatment is required. Since EISENMANN offers all the
procedures, the optimum variant can be recommended impartially in each case.
Cleaning Using Wet Chemical Methods
Parts with a normal degree of soiling are cleaned
through alkaline spray degreasing and then rinsed
with DI water. This enhances the paint adhesion and
removes tenside and salt residues that would affect
the quality.
More heavily soiled parts are degreased in two
stages at higher temperatures and using higher
spray pressures. If integrated separating agents
must be removed, acidic cleaning agents are used.
The workpieces are degreased and rinsed in two
cycles, then rinsed again with DI water.
Workpieces made of polyolefins are additionally
submitted to a surface treatment consisting of a
flame treatment, fluoridation or plasma treatment.
EISENMANN is implementing the first plasma plant
in "online" mode for an automobile manufacturer.
The quality enhancement: Without any manual intervention and without touching the surfaces, the
workpieces on their skids are transferred from
the wet chemical cleaning system via the plasma
treatment to the painting booth.
Pretreatment and cleaning plant with skid conveyor
Zone 1
Degreasing
1.5 bar
heated
Tunnel completely
in stainless steel
Zone 2
Rinsing 1
1.2 bar
Zone 3
Rinsing 2
1.2 bar
Zone 4
DI rinsing
1.0 bar
Adjustable nozzles
Spraying collar
Tunnel insulation
Skid conveyor
Inspection hatch
EISENMANN
Basin
insulation
Stainless
steel basin
Sectional view of a pretreatment plant
2
Wastewater
Screen
Heat
exchanger
Filter
Multi-stage cleaning plant (acidic cleaning agent) with water-saving cascaded track
DI water
Pretreatment plant with
circular conveyor for
reflectors of vehicle lamps
For effective removal of water residues,
blowing zones are installed at the exit
of the pretreatment plant.
If desired by the customer, an additional
tilting and joggling zone can be installed
for workpieces that tend to scoop matters
(see fig. below).
3
Spray Booths with Disposal Facilities
EISENMANN designs and
constructs maintenance-friendly
large-capacity spray booths
made of stainless steel and
glass for manual painting or
painting by robots. They are
optionally equipped with an
integrated sludge removal unit
through floor scrapers or with
a central water trap.
The most effective separator
system is the cross flow current
double venturi scrubber, the
nozzle shape of which provides
for an especially effective
removal of the paint mists
from the exhaust air.
The downstream relief zones
provide for an extremely effective separation of solids attaining
values below those specified in
the TA-Luft.
Paint shop for exterior vehicle mirror housings
To save expenses for fresh water
and waste water, the water in
the scrubber is circulated.
Coagulated paint particles are
continuously removed in external sludge removal systems.
Especially for plastics painting
systems, EISENMANN has developed tailored solutions with
surface scrapers or decanters as
sludge removal systems.
Circulating spray
booth water
Painting vehicle attachment parts in China
Circulating water trap
When using water-based paints,
the possibility of implementing
the economical and environmentally friendly water-based paint
recycling system via ultrafiltration should be taken into
consideration.
4
Water recirculation in the partial flow
Decanter
Compressed paint sludge
Large-capacity spray
booth with cross flow
current venturi scrubber
and partial flow removal
via a decanters
Paint line for vehicle attachment parts with skid conveyor system
Spray booths in clean room technology with air showers
Plastics painting line for bumpers
5
Practical Examples
coat
Clear
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Base
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Prime
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Unlo
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Load
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reatm
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P
Job Coating Systems
This automobile supplier has already received the 4th
EISENMANN plastics painting line for his broad scope
of products ranging from large spoilers to small vehicle
attachment parts. A comprehensive skid conveyor system
is used for transport..
6
Automobile Suppliers
Plastic parts for special series automobiles
are a specialty of this South German automobile supplier. The complex paint line with
robot application and skid conveyor system
they are using is just as flexible.
7
Practical Examples
drier
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Clear
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Prim
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Wate
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Clea
ing
Mask
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Base
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Loa
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Prim
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Pree
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B
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Automobile Manufacturer
This Russian automobile manufacturer relies on EISENMANN quality:
Bumpers and various plastic
attachment parts are perfectly
painted on two parallel largecapacity paint shops.
The paint shops are designed for
a production of 800,000
vehicles/year.
8
Coating of Polycarbonat
Plastics instead of Glass
High-transmission plastic parts are
used instead of glass components
more and more. These require sophisticated scratch-resistant coating
under clean room conditions.
Depending on the geometric data of
the parts, the workpieces are either
flooded or spray coated using robots.
Photo left: Panorama roofs are flow
coated on an EISENMANN line to
achieve a first-class, scratch-proof
and UV-resistant layer.
Photo above: Coating line for the application of
scratch proof paint on headlamp lenses, with
automatic handling by robots.
Photo above left: Flow coating line for headlamp lenses.
Photo left: Spray coat line with robot for headlamp
lenses.
EISENMANN
www.eisenmann.com
Daimlerstrasse 5
71088 Holzgerlingen . Germany
Phone +49 7031 78-0
Fax
+49 7031 78-1000
[email protected]
EISENMANN Service GmbH & Co.KG
Tuebinger Strasse 81
71032 Boeblingen . Germany
Phone +49 7031 78-3000 (6.30 - 18.30 h)
Fax
+49 7031 78-3200
[email protected]
EISENMANN France S.a.r.l.
Espace Lumière . 2, Rue Pathé
78406 Chatou Cedex
Phone +33 1 30159800
Fax
+33 1 30531009
[email protected]
EISENMANN Italia S.r.l.
Via Ferrari, 21
21047 Saronno (VA)
Phone +39 02 96718-626
Fax
+39 02 96718-629
[email protected]
EISENMANN Corporation
150 East Dartmoor Drive
Crystal Lake . Illinois 60014 . USA
Phone +1 815 4554100
Fax
+1 815 4551018
[email protected]
EISENMANN U.K. Ltd.
Unit 118 Severn House
Anson Court Business Centre
Staffordshire Technology Park
Beaconside . Stafford
Staffordshire ST18 OGB
Phone +44 1785 283790
Fax
+44 1785 283799
[email protected]
EISENMANN do Brasil
Avenida Duquesa de Goiás, 716
3° andar . Bairro Real Parque
CEP: 05686-002 São Paulo SP
Phone +55 11 21611200
Fax
+55 11 37580030
[email protected]
EISENMANN Shanghai Co. Ltd.
Room No. 1705, Anta Office Building
No. 107 Zun Yi Road
Shanghai 200051 . P.R. China
Phone +86 21 62362640
Fax
+86 21 62362643
[email protected]
EISENMANN S.A. DE C.V. Mexico
Blvd. 15 de Mayo 2933
Fracc. Las Hadas
72070 Puebla, Pue.
Phone +52 222 2311712
Fax
+52 222 2498835
[email protected]
O.O.O. GERUS
Ul. Pyatnitskaya 47-1
119017 Moscow
Russian Federation
Phone +7 495 951-6824
Fax
+7 495 951-5211
[email protected]
EISENMANN Ingeniería S.A.
Parc de Negocis Mas Blau
Edificio Prima Muntadas
c/Berguedà, 1 . Barcelona
08820 El Prat de Llobregat
Phone +34 93 479-6610
Fax
+34 93 479-6620
[email protected]
Digi · July 2005
EISENMANN Anlagenbau GmbH & Co.KG
Tuebinger Strasse 81
71032 Boeblingen . Germany