wiwa DUOMIX PU 460 User manual

Translation of the original operation manual
PU460_DBK_en_1501 · jw
Operation manual
DUOMIX PU 460
Serial No.
⸏⸏⸏⸏⸏⸏⸏⸏
Type :
❍400 V
❍
230 V / 1-phase
❍230 V / 3-phase
Model with:
❍Diaphragm feed
pump
❍Piston feed pump
❍Feed tank
❍without supply

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Inhalt
Inhalt
1 Foreword........................................................................................................7
2 Safety .............................................................................................................8
2.1 Explanation of symbols...............................................................................8
2.2 Safety information.....................................................................................10
2.2.1 Operating pressure.........................................................................10
2.2.2 Risks due to the spray jet ...............................................................10
2.2.3 Risks due to electricity.................................................................... 11
2.2.4 Risks due to electrostatic charging................................................. 11
2.2.5 Risks due to hot or cold surfaces ................................................... 11
2.2.6 Explosion protection .......................................................................12
2.2.7 Health risks.....................................................................................13
2.3 Information signs on the machine.............................................................13
2.4 Safety equipment......................................................................................14
2.4.1 Safety valve....................................................................................14
2.4.2 Main switch / emergency off...........................................................15
2.4.3 Excessive temperature switch........................................................15
2.4.4 Material pressure sensors ..............................................................15
2.4.5 Ground fault circuit interrupter........................................................15
2.5 Operating and maintenance personnel ....................................................16
2.5.1 Obligations of the machine owner ..................................................16
2.5.2 Personnelqualications .................................................................16
2.5.3 Authorised operator........................................................................16
2.5.4 Personal protective equipment.......................................................16
2.6 Guarantee information..............................................................................17
2.6.1 Spare parts.....................................................................................17
2.6.2 Accessories....................................................................................17
2.7 Behaviour in an emergency......................................................................18
2.7.1 Bring the machine to a standstill and relieve the pressure.............18
2.7.2 Leaks..............................................................................................18
2.7.3 Injuries............................................................................................18
3 Machine description ...................................................................................19
3.1 Intended use.............................................................................................19
3.2 Erroneous use ..........................................................................................19
3.3 Machine design ........................................................................................20
3.4 Control cabinet .........................................................................................21
3.5 Materialow .............................................................................................22
3.6 Material supply .........................................................................................22
3.7 Proportioning pump ..................................................................................23
3.8 Materialuidheater..................................................................................23

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Inhalt
3.9 Intermediate piece....................................................................................24
3.10 Hose assembly.........................................................................................24
3.11 Optional expansions and accessories......................................................25
3.11.1 Material circulation .........................................................................25
3.11.2 Silicagellter .................................................................................26
3.11.3 Datalog / USB interface attachment kit ..........................................26
4 Machine controller......................................................................................27
4.1 Start-up screen.........................................................................................28
4.2 Display of the operating mode..................................................................28
4.3 Keypad .....................................................................................................28
4.4 Operating area..........................................................................................28
4.4.1 Temperature ...................................................................................29
4.4.2 System status.................................................................................29
4.4.3 Temperature settings......................................................................30
4.4.4 Stroke counter volume ...................................................................30
4.4.5 Parking ...........................................................................................30
4.4.6 Language switching........................................................................31
4.4.7 Brightness and version numbers....................................................31
4.4.8 Datalog...........................................................................................31
4.5 Setting area ..............................................................................................33
4.5.1 Pressure setting .............................................................................34
4.5.2 Stroke counter settings...................................................................35
4.5.3 Time setting....................................................................................35
4.5.4 Factory settings ..............................................................................36
4.6 Alarms ......................................................................................................36
5 Transport, installation and assembly .......................................................37
5.1 Transport ..................................................................................................37
5.2 Installation site..........................................................................................38
5.3 Installation ................................................................................................38
5.3.1 Connecting and installing the hose assembly ................................39
5.3.2 Connecting the spray gun ..............................................................40
5.3.3 Connecting the feed pumps ...........................................................40
5.3.4 Earthing the machine .....................................................................41
5.3.5 Connecting the machine to the power supply ................................41
5.3.6 Connecting the compressed air supply ..........................................42

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Inhalt
6 Operation.....................................................................................................43
6.1 Putting the machine into operation...........................................................44
6.1.1 Work steps during commissioning..................................................44
6.1.2 Setting the machine controller........................................................44
6.1.3 Starting the machine ......................................................................44
6.1.4 Filling and draining the machine.....................................................45
6.1.5 Filling and draining the machine with circulation ............................45
6.1.6 Filling and draining the machine with discharge hoses ..................46
6.1.7 Opening the de-icing ......................................................................46
6.1.8 Switching on the heating system....................................................46
6.1.9 Equalising the pressure of both components .................................47
6.2 Spraying ...................................................................................................48
6.3 Flushing....................................................................................................48
6.3.1 Cleaning the machine.....................................................................48
6.3.2 Emptying and cleaning the feed tank .............................................49
6.4 Work interruption ......................................................................................49
6.5 Changing the drum...................................................................................50
6.6 Material change........................................................................................50
6.7 Decommissioning .....................................................................................50
6.7.1 Storing feed pumps ........................................................................51
6.8 Relieving the pressure..............................................................................52
6.8.1 Pressure relief without circulation or discharge hoses ...................52
6.8.2 Pressure relief with circulation or discharge hoses ........................52
6.9 Putting out of use......................................................................................52
6.10 Storage.....................................................................................................52
6.11 Disposal....................................................................................................53
7 Maintenance ................................................................................................54
7.1 Regular testing .........................................................................................54
7.2 Maintenance schedule..............................................................................55
7.3 Maintenance unit ......................................................................................55
7.3.1 Check lubricant level in the oil mister .............................................56
7.3.2 Check and adjust the oil mister ......................................................56
7.3.3 Check and clean the water separator.............................................56
7.4 Proportioning pump ..................................................................................57
7.4.1 Check the release agent level ........................................................57
7.4.2 Check release agent for material residues.....................................57
7.5 Silicagellter ...........................................................................................58
7.5.1 Disassemblingthesilicagellter ...................................................58
7.5.2 Regenerating / drying the granulate ...............................................58
7.5.3 Installingthesilicagellter.............................................................58
7.6 Recommendedoperatinguids................................................................59

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8 Malfunctions and their elimination............................................................60
8.1 General troubleshooting ...........................................................................60
8.2 Error messages on the display.................................................................61
9 Technical data .............................................................................................63
9.1 Machine card............................................................................................64
9.2 Type plates ...............................................................................................64

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Foreword
1 Foreword
Valued Customer!
We are delighted that you have opted for one of our machines.
These operating instructions are directed at the operating and maintenance
personnel. They contain all information required in order to handle this ma-
chine.
The machine owner must ensure that the operating and maintenance per-
sonnel always have access to a copy of the operating instructions
in a language that they understand.
In addition to the operating instructions, further information is also essential
for the safety operation of the machine. Read and observe the directives and
accident prevention regulations valid in your country.
In Germany, these are:
➤ZH 1/406 “Guidelines for liquid jet sprayers (spray devices)” from the Fed-
eration of Institutions for Statutory Accident Insurance and Prevention,
➤BGR 500, chap. 2.29 “Processing Coating Materials”,
➤BGR 500, chap. 2.36 “Working with liquid jet sprayers”, both from the pro-
fessional association for gas, district heating and water management.
We recommend enclosing all relevant directives and accident prevention regu-
lations with the operating instructions.
Furthermore,alwaysobservethemanufacturer’sinstructionsandprocessing
guidelines for coating or conveyance materials.
If questions should arise, we shall be happy to assist you.
We wish you excellent working results with your machine
WIWA Wilhelm Wagner GmbH & Co. KG.
Copyright
© 2015 WIWA
The copyright to these operating instructions belongs to
WIWA Wilhelm Wagner GmbH & Co. KG
Gewerbestr.1-3•35633Lahnau•Germany
Tel.:+496441609-0•Fax.:+496441609-50•Email:[email protected]•Website:www.wiwa.de
These operating instructions are intended exclusively for the preparation, operating and maintenance
personnel. It is expressly prohibited to distribute these operating instructions, duplicate, exploit
or communicate their contents, unless expressly authorised to do so. Infringement will lead
to compensation. All rights to any patent, utility model or design registrations reserved.

8 Translation of the operation manual DUOMIX PU 460
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Safety
2 Safety
This machine has been designed and manufactured with consideration to all
safetyaspects.Itreectscurrentengineeringpracticeandthevalidaccident
prevention regulations. The machine left the factory in faultless condition and
guarantees a high level of technical safety. However, erroneous operation and
misuse result in a risk to:
➤the life and limb of the operator or third parties,
➤the machine and other property of the owner,
➤theefcientfunctionofthemachine.
It is fundamentally prohibited to implement all methods of work that have
anegativeinuenceonthesafetyoftheoperatingpersonnelandthemachine.
All persons involved in the installation, commissioning, operation, care, repair
and maintenance of the machine must have read and understood the operating
instructions beforehand - in particular the “Safety” chapter.
Your safety depends on it!
Werecommendthatthemachineownerhavethisconrmedinwriting.
2.1 Explanation of symbols
Safety information warns of potential accident risks and describes the mea-
sures required for accident prevention. In the operating instructions from
WIWA, safety information is highlighted and labelled as follows:
DANGER
Signals a risk of accidents that are very likely to result in serious injuries and
even death, if the safety information is not observed!
WARNING
Signals a risk of accidents that may result in serious injuries and even death,
if the safety information is not observed!
CAUTION
Signals a risk of accidents that may result in injuries, if the safety information
is not observed!
Signals important information for correct work with the machine. A failure to
observe this may result in damage to the machine or its environment.
A range of pictograms are used in the safety information for accident risks that
may result in injury, depending on the hazard source - examples:
General risk of accident

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Safety
Risk of explosion due to explosive atmosphere
Risk of explosion due to explosive substances
Risk of accident due to electricity or electrostatic charge
Risk of crushing due to moving machine parts
Risk of burning due to hot surfaces
Risk of freezing due to cold surfaces
Therstlineofthesafetyinstructionsindicatesthepersonalprotectiveequip-
ment that must be worn. This is also highlighted and labelled as follows:
Wear protective clothing
Signals an instruction to wear the prescribed protective clothing, in order to
prevent skin injuries due to spray material or gases.
Use eye protection
Signals an instruction to wear safety goggles, in order to prevent eye injuries
due to material spray, gases, vapours or dust.
Use hearing protection
Signals an instruction to wear hearing protection, in order to prevent damage
to hearing caused by noise.
Use respiratory protection
Signals an instruction to use respiratory protection, in order to prevent dam-
age to the respiratory tract caused by gases, vapours or dust.
Wear protective gloves
Signals an instruction to wear protective gloves with forearm protection,
in order to prevent a risk of burns due to heated material.
Wear safety shoes
Signals an instruction to wear safety shoes, in order to prevent foot injuries
duetofalling,topplingorrollingobjects,aswellasslippingonslipperyoors.
Signals references to directives, work instructions and operating instructions
that contain very important information and must be observed.

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Safety
“Poly” + “Iso” + “Cleaning agent” container
Identiesacontainerwithamaterialtobeprocessed,whichtheuserrequires
at the relevant passage in the manual.
“Empty” container
Identiesanemptycollectioncontainerwithwhichtheusercancollect
contaminated spray material.
2.2 Safety information
Always remember that the machine operates in a high pressure process and
can cause life-endangering injuries if handled incorrectly!
Always observe and follow all information in these operating instructions
and in the separate operating instructions for the individual machine parts or
the optionally available auxiliary devices.
2.2.1 Operating pressure
WARNING
Parts that are not designed for the maximum permissible operating pressure
may rupture and cause serious injuries.
➤It is essential to observe the prescribed maximum operating pressures
for all parts. With varying operating pressures, the lowest value always
applies as the maximum operating pressure for the complete machine.
➤Material hoses and hose connections must comply with the maximum
operating pressure including the required safety factor.
➤Material hoses must not exhibit leaks, kinks, signs of wear or bulges.
➤Hose connections must be tight.
2.2.2 Risks due to the spray jet
WARNING
The material exits the spray gun under very high pressure. The spray jet can
cause serious injuries through its cutting action, or by penetrating the skin or
eyes.
➤Never aim the spray gun at yourself, other persons or animals!
➤Neverholdthengerorhandinfrontofthespraygun!
➤Never reach into the spray jet!
WARNING
An unintended ejection of material from the spray gun can cause personal
injury and property damage.
➤Lock the spray gun with all interruptions to work!
➤Prior to each start-up, always check the spray gun lock!

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Safety
2.2.3 Risks due to electricity
WARNING
When using in an atmosphere containing solvents, the risk exists that
electrical cables will become brittle or porous and could cause dangerous
injuries due to electric shock.
➤Check electrical cables for externally visible damage before each
start-up.
➤Never patch electrical cables.
➤Havedamagedelectricalcablesreplacedimmediatelybyqualied
personnel with electrical training.
2.2.4 Risks due to electrostatic charging
WARNING
Thehighowspeedswiththeairlesssprayprocesscanresultinanelectrostatic
charge.
Staticchargescanresultinreandexplosions.
➤Ensure that the machine is correctly earthed outside of EX zones!
➤Also earth the object that is to be coated.
➤Always use open containers!
➤Never spray solvents or materials containing solvents into nar-
row-mouthed cans or barrels with a bung opening!
➤Set the container down on an earthed surface.
➤Use electrically conductive containers.
➤Always ensure contact between the spray gun and the container wall.
➤Only use electrically conductive material hoses.
All original material hoses from WIWA are conductive and designed
for our machines.
WARNING
If the machine becomes contaminated with material during operation,
an electrostatic charge may be generated with the increasing coating thick-
ness.Staticchargescanresultinreandexplosions.
➤Clean the machine of contaminants immediately.
➤Perform the cleaning work outside of EX zones.
2.2.5 Risks due to hot or cold surfaces
CAUTION
When using material heaters, the machine surfaces may become hot. A risk
of burns exists.
➤When processing heated materials always wear protective gloves
with forearm protection.

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Safety
CAUTION
Air motors become very cold during operation. Localised freezing can arise
with contact.
➤Prior to all work on the machine, heat air motors up to a temperature
above 10 °C.
➤Wear suitable protective gloves!
2.2.6 Explosion protection
WARNING
Machines that are not explosion-protected must not be used in operating
facilities that fall under the explosion protection ordinance!
Explosion-protectedmachinescanbeidentiedbythecorresponding
mark on the type plate and/or the ATEX declaration of conformity provided.
Explosion-protectedmachinesfulltherequirementsofdirective94/9/EC
for the device group, device category and temperature class cited on the type
plate or in the declaration of conformity.
The owner is responsible for designating the zoning according to the stipulated
guidelines of 94/9/EC, Annex II, No. 2.1-2.3 in accordance with the provisions
of the responsible regulatory body. The owner is required to check and ensure
that all technical data and labelling comply with the applicable stipulations
according to ATEX.
Please note that some parts have their own type plate with separate labelling
according to ATEX. In this case, the lowest explosion protection of all labels
displayed applies to the entire machine. For applications, whereby a failure of
the machine could lead to dangers to personnel, the owner is required to imple-
ment appropriate safety measures.
If agitators, heaters or other electrically operated accessories are attached,
the explosion protection must be checked. Plugs for heaters, agitators, etc.
that do not have explosion protection may only be plugged in outside of areas
that fall under the explosion protection ordinance, also if the accessory itself is
explosion protected.
WARNING
Heating solvents can lead to an explosion. The consequences may be seri-
ous physical injuries and property damage.
➤Observetheashpointandignitiontemperatureofsolvents.
➤SwitchallMaterialuidheatersoffwhencarryingoutthefollowingwork:
Cleaning, pressure testing, decommissioning, maintenance and repair.
➤Only perform cleaning work when the machine has cooled down.

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Safety
2.2.7 Health risks
CAUTION
Depending on the materials being processed, solvent vapours may arise,
which could lead to damage to health and property.
➤Makesuretheworkplaceissufcientlyventilatedandaired.
➤Always observe the processing instructions of the material manufacturer.
When handling paint, solvents, oils, greases and other chemical substanc-
es, observe the safety and metering instructions of the manufacturer and
the generally applicable regulations.
Only use suitable skin protection, skin cleansing and skincare products
for cleansing the skin.
In systems that are closed or under pressure, dangerous chemical reactions
may arise, if parts produced from aluminium or galvanised parts come into
contact with 1.1.1 - trichloroethane, methylene chloride or other solvents that
contain halogenated chlorinated hydrocarbons (CFCs). If you wish to process
materials that contain the aforementioned substances, we recommend that you
contact the material manufacturer in order to clarify their suitability for use.
A range of machines in rust and acid-resistant designs is available for these
types of materials.
2.3 Information signs on the machine
The information signs displayed on the machine,
such as for example the safety information (see
Fig. 1), indicate possible hazard points and must
be observed.
They must not be removed from the machine.
Damaged and illegible information signs must
be replaced immediately.
Also read and observe the safety information
in the operating instructions!
Additional information signs are located
on the control cabinet (warning of electrical
voltage) and on the distributor (warning of hot
surface). Fig. 1: Safety information

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Safety
2.4 Safety equipment
WARNING
If safety equipment is missing or is not fully functional, the operating safety
of the machine is not guaranteed!
➤Put the machine out of operation immediately if you detect safety equip-
ment defects or any other faults on the machine.
➤Only put the machine back into operation once the faults have been fully
rectied.
The machine is equipped with the following safety equipment:
➤Safety valve,
➤Main switch / emergency off,
➤Excessive temperature switch,
➤Material pressure sensors,
➤Ground fault circuit interrupter.
Check the safety equipment on the machine:
➤Prior to starting up,
➤Always prior to starting work,
➤After all set-up work,
➤After all cleaning, maintenance and repair work.
Checklist on the pressureless machine:
5Seal on the safety valve damaged?
5Safety valve damaged?
5Function of the main switch faultless?
5Function of the compressed air valve on the spray gun faultless?
Checklist on the pressurised machine:
5Function of the safety valve OK?
When checking further safety equipment observe the operating instructions
for the optional accessories.
2.4.1 Safety valve
A safety valve is located on the air motor
of the proportioning pump on the machine.
The safety valve prevents the maximum
permissible
air intake pressure from being exceeded. If the air
intake pressure exceeds the permanently set
threshold value, the safety valve blows off.
In order to check the function of a safety valve,
briefly increase the air intake pressure on
the system components monitored by the safety
valve to approx. 10% above the maximum
permissible value according to the type plate -
the safety valve must discharge.
Fig. 2: Safety valve

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Safety
WARNING
If the maximum permissible air intake pressure is exceeded, parts may rup-
ture. The consequences may be personal injuries and property damage.
➤Never operate the system without safety valves or with defective safety
valves!
➤If it is necessary to replace a safety valve, please refer to the machine
card for the order number.
➤With new safety valves, please ensure that these are set to the maxi-
mum permissible air intake pressure of the machine (see type plate or
machine card) and sealed.
Changing the mixing ratio changes the pressure transmission and therefore
also the maximum permissible air intake pressure.
In this case the existing safety valve must be replaced following agreement
with WIWA.
2.4.2 Main switch / emergency off
In an emergency, the electrical system and
the compressed air supply is switched off
immediately using the main switch on the control
cabinet (Fig. 3).
The compressed air supply to the spray gun is
not interrupted!
Material pressure can still be present!
0
Off
on
off
Fig. 3: Main switch
2.4.3 Excessive temperature switch
Whenthemaximumpermittedtemperatureinthematerialuidheateris
exceeded, these elements switch the machine off. This fault is signalled
onthecontrolcabinet.Afterthematerialuidheaterhascooledoffandthefault
has been acknowledged, the machine can be put back into operation.
2.4.4 Material pressure sensors
Both pressure sensors were set to the maximum permitted operating pressure
at the factory. When this value is exceeded, the machine including the heater
switches off completely. This fault is signalled on the control cabinet. Only after
the pressure has been relieved at the affected component is trouble-free
operation possible again.
2.4.5 Ground fault circuit interrupter
If the maximum permitted leakage current is exceeded at the hose assembly,
the ground fault circuit interrupter fuse is tripped. The machine switches itself
off. Only after the error has been corrected is trouble-free operation possible
again.

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Safety
2.5 Operating and maintenance personnel
2.5.1 Obligations of the machine owner
The machine owner:
➤is responsible for training the operating and maintenance personnel,
➤must instruct the operating and maintenance personnel on correct handling
of the machine, and on wearing the correct work clothing and protective
equipment,
➤must make work aids (such as lifting gear for transporting the machine or
tank) available to the operating and maintenance personnel,
➤must make the user manual accessible to the operating and maintenance
personnel and must ensure that this remains constantly available,
➤must ensure that the operating and maintenance personnel have read and
understood the user manual.
Only then are they permitted to put the machine into operation.
2.5.2 Personnel qualications
Differentiation is made between 2 groups of personnel, depending on their
qualications:
➤Instructedoperatorhasreceivedveriedinstructionfromthemachineown-
er regarding the tasks entrusted to him and the possible risks in the event
of incorrect conduct.
➤Trained personnel are capable - due to instruction provided by the machine
manufacturer - of carrying out maintenance and repair work on the ma-
chine, independently recognising possible dangers and avoiding risks.
2.5.3 Authorised operator
Activity Qualication
Set-up and operation Instructed operator
Cleaning Instructed operator
Maintenance Trained personnel
Repair Trained personnel
Young persons under the age of 16 are not permitted to operate this ma-
chine.
2.5.4 Personal protective equipment
Wear protective clothing
Always wear the protective clothing stipulated for your working environment
(e.g. antistatic protective clothing in potentially explosive areas) and also
observe the recommendations in the safety datasheet of the material
manufacturer.

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Safety
Use eye protection
Wear safety goggles, in order to prevent eye injuries due to material spray,
gases, vapours or dust.
Use hearing protection
Suitable noise protection equipment must be made available to
the operating personnel. The machine owner is responsible for compliance
with the accident prevention regulation "Noise" (BGV B3). It is therefore
necessary to pay particular attention to the conditions at the installation site
– for example noise pollution can increase if the machine is installed in or
on hollow bodies.
Use respiratory protection
Although the airless spray process minimises the material mist with the right
pressure setting and correct method of work, we recommend that you wear
a respirator.
Wear protective gloves
Wear antistatic protective gloves. When processing heated materials,
protective gloves must be additionally equipped with forearm protection
in order to prevent burns.
Wear safety shoes
Wear antistatic safety shoes, in order to prevent foot injuries due to falling,
topplingorrollingobjects,aswellasslippingonslipperyoors.
2.6 Guarantee information
Observe our general terms and conditions of business (T&Cs) at
www.wiwa.de.
2.6.1 Spare parts
➤When repairing and maintaining the machine, only use original spare parts
from WIWA.
➤If spare parts are used, that have not been produced or supplied by WIWA
then the guarantee is voided and all liability shall be excluded.
2.6.2 Accessories
➤If you use original accessories from WIWA, their suitability for use in our
machines is guaranteed.
➤If you use third-party accessories then these must be suitable for the ma-
chine - in particular with respect to the operating pressure, the current
connection data and the connection variables. WIWA shall not be liable for
any damage or injuries arising due to these parts.
➤It is essential to observe the safety provisions applicable to the accesso-
ries.Youcanndthesesafetyprovisionsintheseparateoperatinginstruc-
tions for the accessories.

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Safety
2.7 Behaviour in an emergency
2.7.1 Bring the machine to a standstill and relieve the pressure
In an emergency you must bring the machine to a standstill immediately and
relieve the pressure.
1. Switch the machine off on the EMERGENCY OFF switch.
2. Relieve the pressure in the machine.
3. Replace defective parts immediately or have them replaced.
2.7.2 Leaks
WARNING
In case of leaks, material may escape under very high pressure and cause
serious physical injuries and property damage.
➤Bring the machine to an immediate standstill and relieve the pressure.
➤Tighten threaded connections and replace defective parts (must be per-
formed by trained personnel).
➤Do not seal leaks at connections and on high pressure hoses with
the hand or by wrapping.
➤Do not patch material hoses!
➤Check hoses and threaded connections for leak-tightness when starting
the machine up again.
2.7.3 Injuries
In case of injuries caused by processing material or solvents, always have
themanufacturer’sdatasheetreadytoshowthedoctor(supplierormanufactur-
er address, their telephone number, material designation and material number).

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Machine description
3 Machine description
The DUOMIX PU 460 is a 2-component coating machine for industrial use. Seam-
less and smooth coatings and linings can be applied using this machine.
Duetothexedmixingratioofthepump,theexactdosingofbothcomponents
is ensured at all times. Every mixing ratio from 1:1 to 10:1 can be realised with
a simple exchange of the material pumps.
Yourmachinehasbeendesignedaccordingtoyourspecicrequirements
(material to be processed, mixing ratio, output, etc.).
The technical data for your machine can be found on the machine card
enclosed, or on the type plate.
3.1 Intended use
The DUOMIX PU 460 is suitable for processing solvent-free 2-component plastics
(PU foam, polyurethane and polyurea).
This machine can be used in the production of new parts for the construction
of tubes, shafts, and sewer ducts and pipeline construction as well as
in the area of renovation of existing infrastructures, e.g. swimming pools,
sewagetreatmentplants,biogasplants,gravellling,washingfacilitiesand
many more.
Intended use also includes:
➤observing the technical documentation and
➤complying with the operating, maintenance and servicing guidelines.
3.2 Erroneous use
Any use other than that stipulated in the technical documentation is deemed
to be erroneous use and may result in personal injury or property damage.
Erroneous use applies in particular if
➤impermissible materials are processed,
➤unauthorisedmodicationsorchangesareimplemented,
➤safetyequipmentismodied,removedorbypassed,
➤unsuitable spare or accessory parts are used (see chap. 2.6.1 & 2.6.2),
➤machines that are not marked as EX machines are used in potentially
explosive areas,
➤the machine is operated outside of the operating limits (see type plate).

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Machine description
3.3 Machine design
1 2 3
12
15
14
13
11
10
8
7
5
9
64
Fig. 4: Vorder- und Rückansicht der DUOMIX PU 460 (hier mit Membranpumpen zur Materialzuführung)
No. Designation Additional information
1 Control cabinet Chap. 3.4 on page 21
2 ISO feed pump
3 POLY feed pump
4 Compartment for the operating instructions
5 Crane eyelet
6 Toolbox
7 Maintenance unit Chap. 7.3 on page 55
8 ISO release agent container
9 Parking brake
10 Transport receptacle for the feed pumps
11 Proportioning pump Chap. 3.7 on page 23
12 POLY release agent container
13 POLYmaterialuidheater
14 ISOmaterialuidheater
15 Intermediate piece Chap. 3.9 on page 24