Trotec TWP 9005 E User guide

Page 1
TWP 4005 E / TWP 7505 E / TWP 9005 E
EN
OPERATING MANUAL
SUBMERGED CLEAR WATER PUMP, NEAR-GROUND SUCTION
TRT-BA-TWP4005E-TWP7505E-TWP9005E-TC211020TTRT02-005-EN
Page 2

Table of contents

Notes regarding the operating manual.................................2
Safety.....................................................................................2
You can download the current version of the operating manual
and the EU declaration of conformity via the following link:
Information about the device................................................6
Transport and storage...........................................................7
Assembly and installation.....................................................7
Operation .............................................................................10
Errors and faults..................................................................11
Maintenance........................................................................12
Technical annex...................................................................13
Disposal ...............................................................................15

Notes regarding the operating manual

Symbols

Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
TWP 4005 E
http://hub.trotec.com/?id=40406
TWP 7505 E
https://hub.trotec.com/?id=42885
TWP 9005 E
https://hub.trotec.com/?id=42886
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information (e.g.
material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the
operating manual must be observed.

Safety

Read this manual carefully before starting or using the
device. Always store the manual in the immediate vicinity
of the device or its site of use.
Warning
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future
reference.
This appliance can be used by children aged
from 8years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given
supervision or instruction concerning use of the
appliance in a safe way and understand the hazards
involved.
Children shall not play with the appliance. Cleaning and
user maintenance shall not be made by children
without supervision.
2EN
Page 3
General safety
Do not use the device in potentially explosive rooms or
areas and do not install it there.
Do not use the device in aggressive atmosphere.
Check accessories and connection parts for possible
damage prior to every use of the device. Do not use any
defective devices or device parts.
Before carrying out maintenance, care or repair work on
the device, remove the mains plug from the mains socket.
Hold onto the mains plug while doing so.
When positioning the device, observe the minimum
distances from walls and other objects as well as the
storage and operating conditions specified in the Technical
annex.
Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
General safety warnings – Electrical safety
The device is to be supplied with a rated residual current
of no more than 30mA by means of an RCD (Residual
Current protective Device).
Ensure that all electric cables outside of the device are
protected from damage (e.g. caused by animals). Never
use the device if electric cables or the power connection
are damaged!
The mains connection must correspond to the
specifications in the Technical annex.
Insert the mains plug into a properly fused mains socket.
Switch the device off and disconnect the power cable from
the mains socket when the device is not in use.
Do not under any circumstances use the device if you
detect damages on the mains plug or power cable.
If the connection line of this device is damaged, the device
must be sent for recycling in accordance with the
specifications provided in the Disposal chapter.
Defective power cables pose a serious health risk!
Should there be a risk of flooding, install the plug
connections in a flood-proof area. There is a risk of
electric shock!
Make sure that the mains voltage corresponds to the
specifications on the nameplate.
Have all electrical installations carried out by an expert
according to the national regulations and the device-
specific requirements.
Do not use the power cable to drag the device.
Hold onto the mains plug while pulling the power cable out
of the mains socket.
Protect the power supply cable against heat, oil and sharp
edges. Make sure that the power supply cable is not
crushed, kinked or subjected to other mechanical stresses.
Only use splash-proof extension cables intended for
outdoor use whilst observing the device's power input.
Before using cable drums, always unroll the cable
completely. Check the cable for damage. The use of
extension cables which are not approved for outdoor use
can result in injuries due to electric shock.
Before performing any work on the device, in case of leaks
in the water system, before taking work breaks or when
not in use, remove the mains plug from the mains socket.
General safety warnings – Personal safety
Never use the device with persons or animals in the water
or pumping medium or if they could access it. There is a
risk of electric shock!
Never insert any objects or limbs into the device.
This appliance is not a toy. Keep away from children and
animals. Do not leave the device unattended during
operation.
Device-specific safety warnings for submerged
pumps
Do not leave the device running unattended to ensure an
early detection of when the device runs dry or switches off
automatically. This would damage the device. Regularly
check the float for proper functioning.
Please bear in mind, that the device is not suitable for
continuous operation (e.g. for watercourses in garden
ponds). Check the device for proper functioning on a
regular basis.
Keep in mind, that lubricants are used within the device.
These might potentially cause damages or contaminations
if emitted. Do not use the device for drinking water or in
garden ponds with either a fish population or valuable
plants.
The device is not to be carried by holding it at the power
supply cable or hose. Do not fasten it there either.
Do not place any objects on the device – not even to
weight it down. The device will sink to the ground due to
its own weight.
After the set-up of the device, its mains plug must be
readily accessible during operation.
Wear sturdy shoes to protect yourself against electric
shock.
Provide appropriate frost protection.
EN3
Page 4
Before taking the device into operation, have the following
checked by an expert:
–earthing, neutral conductor and RCD must be
functioning properly and correspond to the national
regulations,
–electrical plug connections must be protected from
moisture.

Intended use

The device is only suited for draining, conveying and pumping
over the following media:
clear water
non-corrosive suds (e.g. leaking washing machine)
slightly chlorinated water
When doing so, the water must not contain any suspended
matter exceeding a maximum particle size of 5mm.
The device is fully submersible (watertight encapsulation) and
can be immersed up to 7m into the pumping medium.
The water temperature must not exceed 35°C.
The device may temporarily be used for e.g.:
pumping out flooded basements
emptying tanks and containers
emptying pools provided that no persons are in the water
when it is pumped out
water withdrawal from wells and shafts

Foreseeable misuse

The device is not suitable for continuous operation
(e.g. as recirculation pump for ponds).
The device is not suitable for use as a filter pump in
swimming pools and the like.
The device is not suitable as permanent, automatic
overflow protection of e.g. wells or fountains or for the
regulation of the groundwater level. Use a stationary waste
water pumping system for building and property drainage
for these purposes.
The device is not suitable for increasing the pressure of
existing water supply networks.
The device is not suitable for pumping potable water.
The device must not be used for aggressive, abrasive,
caustic, corrosive, combustible or explosive pumping
media, e.g.:
–brine
–sandy water
–food
–cleaning agents
–fuels (e.g. petrol, diesel)
–oils
–greases
–petroleum
–nitro-cellulose thinner
–waste water from lavatories and urinal installations
The device must not be used at freezing temperatures.
Any unauthorised modifications, alterations or structural
changes to the device are forbidden.
Any use other than the intended use is regarded as a
reasonably foreseeable misuse.

Personnel qualifications

People who use this device must:
be aware of the dangers that occur when working with
electric devices in damp areas.
have read and understood the operating manual, especially
the Safety chapter.
4EN
Page 5

Safety signs and labels on the device

Residual risks

Note
Do not remove any safety signs, stickers or labels from
the device. Keep all safety signs, stickers and labels in
legible condition.
The following safety signs and labels are attached to the device:
Warning of electrical voltage
Information marked with this symbol indicates dangers
to the life and health of persons due to electrical
voltage.
General warning sign
This symbol indicates that you must be aware of the
dangers that can occur when working with the device.
Device may start up without warning
This symbol indicates that the device may start up
without warning when it is switched on.
Do not use damaged power cables or mains plugs
This symbol indicates that the device must no longer be
operated if the power cable is damaged.
Staying in water prohibited
This symbol indicates that the device must not be
operated with persons or animals in the water.
Do not use at freezing temperatures
This symbol indicates that the device must be protected
from frost.
Keep out of the reach of children – not a toy
This symbol indicates that the device is not a toy and is
thus not suitable for children.
Do not pull the mains plug by the power cable
This symbol indicates that you must not pull the mains
plug out of the socket by the power cable.
Warning of electrical voltage
Work on the electrical components must only be
carried out by an authorised specialist company!
Warning of electrical voltage
Before any work on the device, remove the mains plug
from the mains socket!
Do not touch the mains plug with wet or damp hands.
Hold onto the mains plug while pulling the power cable
out of the mains socket.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.

Behaviour in the event of an emergency

1.In an emergency, disconnect the device from the mains
feed-in: Hold onto the mains plug while pulling the power
cable out of the mains socket.
2.Do not reconnect a defective device to the mains.
Pull the mains plug
This symbol indicates that the mains plug must be
removed from the socket when the device is not in use.
Not suitable for pumping potable water
This symbol indicates that the device is not suitable for
pumping potable water.
Submerge pump at a slight angle

Overheating protection

The device is provided with a thermal protection circuit which is
activated by overheating of the device and then switches the
device off.
Switch the device off and let it cool down. Investigate the cause
of overheating. Should the problem persist, please contact the
customer service.
This symbol indicates that the pump must be
submerged into the water at a slight angle to allow the
remaining air to escape.
EN5
Page 6

Information about the device

1
2
3
4
5
6
7
8
10
9
Ø 25 mm
1''
1 ½''
Ø 32 mm
11

Device description

The submerged clear water pump is suited for draining,
conveying and pumping over clear water with the contained
suspended matter not exceeding a maximum particle size
of 5mm.
The device comes with near-ground suction and can extract
clear water up to a residual height of 3mm.
A float ensures the automatic switch-on and switch-off at a
respectively defined height. Additionally, the switch-on/-off
height can be finely adjusted within the specified range by
means of a locking device, see technical data.
The water temperature must not exceed 35°C.
Info
The illustrations in this operating manual feature the
device TWP4005E by way of example. However, the
depicted operating steps and explanations also apply to
the devices TWP7505E and TWP9005E unless
otherwise mentioned.

Device depiction

No.Designation
1Transport handle / attachment for nylon cord
2Power cable
3Float switch locking device
4Float switch
5Air intake opening
6Connection with 1½"internal thread
7Reducer
8Elbow
9Backflow preventer
10Retainer (for backflow preventer)
11Seal ring
6EN
Page 7

Transport and storage

Assembly and installation

Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.

Transport

Before transporting the device, observe the following:
Hold onto the mains plug while pulling the power cable out
of the mains socket.
Do not use the power cable to drag the device.
Only carry the device by the transport handle.
Do not carry the device by holding it at the power cable or
hose.

Storage

When the device is not being used, observe the following
storage conditions:
Dry and protected from frost and heat
In an upright position where it is protected from dust and
direct sunlight
With a cover to protect it from invasive dust, if necessary
Place no further devices or objects on top of the device to
prevent it from being damaged.
If you do not use the device for an extended period of time, it
must be cleaned thoroughly after its last application and before
recommissioning. Deposits and residues could lead to start-up
difficulties.
For restart, please proceed according to the Start-up chapter.

Scope of delivery

1x Submerged clear water pump
1x Reducer for inner diameters 25mm and 32mm as well
as for 1''internal threads
1x Backflow preventer with seal (preassembled)
1x Retainer for backflow preventer
1x Seal ring
1x Elbow
1x Nylon cord (12m)
1x Manual

Unpacking the device

1.Open the cardboard box and take the device out.
2.Completely remove the packaging.
3.Fully unwind the power cable. Make sure that the power
cable is not damaged and that you do not damage it during
unwinding.

Start-up

Connecting the pipe or hose line
The device may be operated using either a hose line or a pipe.
Ex factory, the device is delivered with a 1½" internal thread.
Please observe the following information regarding water
discharge:
Please note that making use of the reducer(7) might
decrease the device performance. The reducer(7) should
be shortened to the used diameter so as not to decrease
the device performance unnecessarily.
Please note that the device cannot be moved as flexibly
when using a solid pipe.
Please note that the maximum particle size is to be
reduced in proportion to the hose or pipe diameter.
Please note that the conveying capacity declines with an
increasing length of the water discharge line.
Hose line
Info
If required, you can cut the reducer(7) off at the
desired diameter.
At delivery the reducer(7) is already assembled with
backflow preventer(9) and retainer(10).
1.Screw the elbow(8) onto the connection with 1½"internal
thread(6).
2.Screw the retainer(10) including backflow preventer(9)
onto the elbow(8). Make sure that the backflow
preventer(9) is positioned correctly.
3.Put the seal ring(11) onto the retainer(10) including
backflow preventer(9). The profiled side rests on the
retainer(10).
EN7
Page 8
4.Screw the reducer(7) onto the retainer(10) with backflow
6
8
9
10
7
11
preventer(9).
5.When using a hose without thread:
Slide an appropriate hose clamp onto the hose.
6.Push the hose (inner diameter 25mm or 32mm) onto the
reducer(7) all the way to the stop.
8.When using a hose with internal thread (1''):
Screw the hose connection onto the reducer(7).
9.Alternatively, you can also screw a hose with internal
threading (1½") directly onto the elbow(8).
Pipe
1.If possible, screw the pipe directly into the connection with
1½"internal thread(6) or use a suitable adapter.
7.Affix the hose by means of the hose clamp.
8EN
Page 9
Adjusting the float switch
4
3
7 m
The device comes equipped with a float switch(4) which
switches the device on or off automatically according to the
water level. Check the float switch(4) for proper functioning at
regular intervals.
Switching pointWater level
TWP4005E
Height for switch-onApprox. 420mm
Height for switch-offApprox. 180mm
TWP7505E / TWP9005E
Height for switch-onApprox. 600mm
Height for switch-offApprox. 180mm
The pumping height can be regulated by means of the float
switch(4) and its position in the float switch locking device(3).
Please observe the following information regarding the float
switch(4):
Make sure that the float switch(4) always has enough
clearance and is not permanently activated. This could
prevent the automatic switch-off causing the device to run
dry. This would damage the pump.
Make sure that the float switch(4) is able to move freely
and does not suffer from a limited mobility caused by
obstacles.
Observe a sufficient distance between float switch(4) and
float switch locking device(3), for this could prevent the
automatic switch-off causing the device to run dry.
Make sure that the position of float switch(4) is adjusted in
a way, that it does not lie flat on the ground. This could
prevent the automatic switch-off causing the device to run
dry.
1.If required, lock the float switch(4) in the desired position
by pushing the cable into the float switch locking device(3)
at the side of the pump.
Installing the device
Please observe the following information regarding the device
set-up and before switching the device on:
The float switch must be able to move freely. The shaft
into which the device is lowered must not restrict the
mobility of the float switch in any way.
Do not leave the device running unattended.
Make sure that the device is firmly placed on the ground or
safely suspended.
When using the device in bodies of water with natural,
muddy ground, hook or set the device up at a slightly
elevation position, e.g. on bricks.
Check whether the hose or pipe was attached properly.
Make sure that the power cable is not under tensile load
and has enough clearance.
Make sure that the mains connection corresponds to the
specifications provided in the technical data.
Check the mains socket for its proper condition. The mains
socket's fusing must be sufficient.
Make it impossible for moisture to reach mains plug or
socket. There is a risk of electric shock!
Warning of electrical voltage
Electric shock from damaged power supply cable.
Make sure not to hold or suspend the device by the
power supply cable under any circumstances.
Note
At the bottom of ponds and other waterbodies deposits
may have accumulated over time. To prevent the
device from being damaged, do not lower it all the way
to the ground unless you are certain that the water is
clean, in other words that the size of the dirt particles
in the water does not exceed 5mm.
1.Fasten the supplied nylon cord to the transport handle(1)
at the top of the device.
EN9
Page 10
2.Lower the device into the water at a slight angle to allow
any remaining air to escape.
3.If you want the device to be positioned on the ground,
ensure that the latter is even.
4.Attach the nylon cord to an easily accessible position, so
you can pull the device back out after pumping has been
completed.

Operation

Switching the device on
Once you have completely installed the device as described in
the Start-up chapter, you can switch it on.
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
1.Plug the mains plug into a sufficiently fused mains socket.
ð The device will be switched on when the float switch is
situated above the adjusted or the maximum switch-on
height.
ð The device will be switched off as soon as the float
switch reaches the set or the minimum switch-off
height.
Info
The device comes equipped with a backflow
preventer(9). It prevents the water from flowing back
from the line through the device at the end of the
pumping process.
Manual operation
You can also use the device in manual operation.
In manual operation it is possible to siphon off the media to a
residual height of 3mm.
Please note that for manual operation the starting water level
must amount to at least 80mm, but must not exceed the
maximum of 180mm.
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
Note
Running dry can cause damage to the device.
Switch the device off before it can run dry.
1.Hold onto the mains plug while pulling the power cable out
of the mains socket.
2.If necessary, pull the device out by means of the nylon
cord.
10EN
Page 11
3.Lock the float switch(4) in the following position:
4
ð With the float switch affixed in this position, the device
is switched on permanently.
4.Lower the device into the water at a slight angle to allow
any remaining air to escape. Make sure that the position of
the float switch(4) does not change.
5.Plug the mains plug into a sufficiently fused mains socket.
ð The device switches on.
6.Oversee the pumping process.
7.When the device starts to suck in air, disconnect the power
cable from the mains socket by holding onto the mains
plug.
Info
If the device switches off again after only a brief period
of operation, the float switch might have come loose.
Fix the float switch again as depicted.
Shutdown
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
1.Hold onto the mains plug while pulling the power cable out
of the mains socket.
2.Pull the device out by means of the nylon cord.
3.Disconnect the connection line.
4.Clean the device according to the Maintenance chapter.
5.Store the device according to the Storage chapter.

Errors and faults

Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
Warning of electrical voltage
Tasks which require the housing to be opened
must only be carried out by authorised specialist
companies or by Trotec.
Switch the device off.
Hold onto the mains plug while pulling the power cable out
of the mains socket.
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
The device does not start:
Check the power connection.
Check the on-site fusing.
Check the power cable and mains plug for damages. If you
notice damages, do not try to take the device back into
operation. To avoid safety hazards, do not perform any
repairs. Dispose of the device as described in the Disposal
chapter.
Check whether the float switch is located above the
automatic switch-on position.
The device might have overheated and the thermal
protection circuit is activated.
If so, wait for approx. 10minutes before restarting the
device. If the device is not starting, have the electrics
checked by a specialist company or by Trotec.
The water temperature is above 35°C and the thermal
protection circuit is activated.
Check whether there are any foreign objects in the air
intake opening(5), the reducer(7) and/ or the hose or
pipe.
The device is running, but not pumping any water:
Check the inside of the device for any remaining air. Lower
the device into the water at a slight angle and wait for the
air to escape completely.
Check whether the minimum water level has been
reached, see technical data. In order to start pumping, the
device requires a minimum water level.
Check whether the hoses are blocked and whether the
water contains any suspended matter with a particle size
of more than 5mm, which could clog up the device.
Check whether the used hose diameter is too small.
Check whether the hose line is kinked or blocked. Remove
kinks and/ or blockages.
Check whether the reducer(7), the backflow preventer(9)
and/ or the elbow(8) are blocked.
EN11
Page 12
The device is not switching off automatically:
The float switch is hindered from lowering. Check whether
the float switch can move freely. Remove any blockages or
ensure sufficient freedom of movement for the float
switch.
The device switches off after a brief runtime:
Check whether the water temperature is too high. The
device might have overheated due to a too high water
temperature and the thermal protection circuit is activated.
Check the power connection.
Check the power cable and mains plug for damage.
Check the on-site fusing.
Check whether the hoses are blocked and whether the
water contains any suspended matter with a particle size
of more than 5mm, which could clog up the device. The
device might have overheated due to the blockage and the
thermal protection circuit is activated.
Insufficient or decreasing conveying capacity:
Check whether the hoses are blocked and whether the
water contains any suspended matter with a particle size
of more than 5mm, which could clog up the device.
Check the hose diameter and the delivery head. An
excessive delivery head paired with a small hose diameter
can cause a reduction of the conveying capacity.
Check whether the hose line is kinked or blocked. Remove
kinks and/ or blockages.

Maintenance

Activities required before starting maintenance

Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
Switch the device off.
Hold onto the mains plug while pulling the power cable out
of the mains socket.

Notes on maintenance

Inside the device, there are no parts that need to be maintained
or lubricated by the user.

Safety signs and labels on the device

Check the safety signs and labels attached to the device at
regular intervals. Replace illegible safety signs!

Cleaning

Clean the device with a soft, damp and lint-free cloth.
Protect electrical components from moisture. Do not use
any aggressive cleaning agents such as cleaning sprays,
solvents, alcohol-based or abrasive cleaners to dampen
the cloth.
Rinse the reducer(7) as well as the other connections
using clear water.
Rinse the air intake opening(5) with clear water.
Note
Wait for at least 3 minutes after maintenance and
repair work. Only then switch the device back on.
Your device still does not operate correctly after these
checks?
Please contact the customer service. If necessary, bring the
device to an authorised specialist electrical company or to
Trotec for repair.
12EN
Page 13

Technical annex

7 m
7 m
7 m

Technical data

ParameterValue
ModelTWP4005ETWP7505ETWP9005E
Article number4.610.000.0054.610.000.0074.610.000.009
Max. feed rate7000 l/h13000 l/h14000 l/h
Max. pump height7.5m10 m11.5 m
Max. submersion depth
Max. water temperature35°C35°C35°C
Power supply230 V - 240 V ~ 50 Hz230 V - 240 V ~ 50 Hz230 V - 240 V ~ 50 Hz
Power consumption400 W750 W900 W
Protection typeIPX8IPX8IPX8
Minimum operating depth80 mm80 mm80 mm
Max. water level after suction3 mm3 mm3 mm
Connection typeCEE 7/4CEE 7/4CEE 7/4
Cable length10 m10 m10 m
Protection classIII
Weight3.6 kg4 kg5 kg
Dimensions
(lengthx widthx height)
160x 160x 290(mm)160x 160x 335(mm)160x 160x 335(mm)
Max. particle size5 mm5 mm5 mm
Height for switch-on420 mm600 mm600 mm
Height for switch-off180 mm180 mm180 mm
Hose connection, inner diameter25 mm; 32 mm25 mm; 32 mm25 mm; 32 mm
Threaded connection1"; 1½"1"; 1¼"; 1 ½"1"; 1¼"; 1 ½"
EN13
Page 14
Schematic representation
max. 35 °C
18 cm
max.
7,5 m
max. 7 m
42 cm
max. 35 °C
18 cm
max.
10 m
max. 7 m
60 cm
max. 35 °C
18 cm
max.
11,5 m
max. 7 m
60 cm
9.0006.0003.000
0
3
6
9
m
l/h
9.000
0
3
6
9
3.0006.00012.000
m
l/h
15.0009.000
0
3
6
9
3.0006.00012.000
12
m
l/h
TWP4005E
TWP7505E
Performance chart (delivery head/ flow rate)
TWP4005E
TWP7505E
TWP9005E
TWP9005E
14EN
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Disposal

The icon with the crossed-out waste bin on waste
electrical or electronic equipment stipulates that this equipment
must not be disposed of with the household waste at the end of
its life. You will find collection points for free return of waste
electrical and electronic equipment in your vicinity. The
addresses can be obtained from your municipality or local
administration. You can also find out about other return options
that apply for many EU countries on the website
https://hub.trotec.com/?id=45090. Otherwise, please contact an
official recycling centre for electronic and electrical equipment
authorised for your country.
The separate collection of waste electrical and electronic
equipment aims to enable the re-use, recycling and other forms
of recovery of waste equipment as well as to prevent negative
effects for the environment and human health caused by the
disposal of hazardous substances potentially contained in the
equipment.
EN15
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Trotec GmbH
Grebbener Str. 7
D-52525 Heinsberg
+49 2452 962-400
+49 2452 962-200
info@trotec.com
www.trotec.com
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