widos 25000 mobile User manual

Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone ++49 7152 9939 - 0
W. Dommer Söhne GmbH D-71254 Ditzingen-Heimerdingen Fax ++49 7152 9939 - 40
website: www.widos.de email: [e-mail]
Headquarters: D-71254 Ditzingen-Heimerdingen Country court Stuttgart HRB 200973 Managing director: Jürgen Dommer
Working Instructions
Translation
Heating element butt welding machine
WIDOS 25000 mobile
Keep for further use!

Kunststoffschweißtechnik
Product identification
07.02.13 Working Instructions WIDOS 25000 mobile Page 2 of 116
Model: Heating element butt welding machine
Type: WIDOS 25000 mobile
Serial number, year of construction: see type label
Customer Entries
Inventory-No.:
Place of working:
Order of spare parts and after sales service:
Address of manufacturer WIDOS
W. Dommer Söhne GmbH
Einsteinstrasse 5
D-71254 Ditzingen-Heimerdingen
Phone: ++49 7152 / 99 39 - 0
Fax: ++49 7152 / 99 39 - 40
[email protected]
www.widos.de
Address of the subsidiary companies:
WIDOS
WIDOS GmbH W. Dommer Söhne AG
An der Wiesenmühle 15 St. Gallerstr. 93
D-09224 Grüna / Sachsen CH – 9201 Gossau
Phone: ++49 371 / 8 15 73 - 0 Phone: [phone]
Fax: ++49 371 / 8 15 73 - 20

Kunststoffschweißtechnik
Introduction
07.02.13 Working Instructions WIDOS 25000 mobile Page 3 of 116
Purpose of the document
These working instructions give you information about all important questions which refer to
the construction and the safe working of your machine.
Just as we are, you are obliged to engage in these working instructions, as well.
Not only to run your machine economically but also to avoid damages and injuries.
Should questions arise, contact our service team in the factory or in our subsidiary companies.
We will help you with pleasure.
According to our interest to continuously improve our products and working instructions, we
kindly ask you to inform us about problems and defects which occur in exercise.
Thank you.
Structure of the working instructions
This manual is arranged in chapters, which belong to the different using phases of the
machine.
Due to this structure, the searched information can be easily found.
2/7/2013 WIDOS
W. Dommer Söhne GmbH
Einsteinstraße 5
D-71254 Ditzingen-Heimerdingen
All rights reserved.
Reprinting only allowed with permission of the corporation.
Any changes are subject to technical innovations.

Kunststoffschweißtechnik
Contents
07.02.13 Working Instructions WIDOS 25000 mobile Page 4 of 116
1.DESCRIPTION OF THE PRODUCT................................................................................ 7
1.1.Usage and purpose-oriented use........................................................................................7
1.2.Safety measures ...................................................................................................................7
1.3.Conformity.............................................................................................................................7
1.4.Machine overview .................................................................................................................8
1.5.Designation of the product..................................................................................................9
1.5.1.Technical data ....................................................................................................................9
1.5.1.1.WIDOS 25000 mobile General data........................................................................9
1.5.1.2.Basic frame................................................................................................................9
1.5.1.3.Hydraulic aggregate.................................................................................................10
1.5.1.4.Heating element.......................................................................................................10
1.5.1.5.Pipe cutter................................................................................................................10
1.5.1.6.Vacuum device AF 14 (optional)..............................................................................10
1.6.Equipment (optional)..........................................................................................................11
1.7.Wear parts, tools and accessories....................................................................................11
2.SAFETY RULES............................................................................................................ 12
2.1.Explanation of the symbols and indications....................................................................12
2.2.Obligations of the owner....................................................................................................13
2.3.Obligations of the worker ..................................................................................................13
2.4.Measures of organization ..................................................................................................13
2.5.Information about safety precautions ..............................................................................13
2.6.Instructions for the staff ....................................................................................................13
2.7.Maintenance and inspection, repair..................................................................................14
2.8.Dangers while handling the machine ...............................................................................14
2.9.Dangers caused by electric energy ..................................................................................14
2.10.Specific dangers.................................................................................................................15
2.10.1.Danger of stumbling over electric / hydraulic wires..........................................................15
2.10.2.Dangers caused by the hydraulics...................................................................................15
2.10.3.Danger of combustion by heating element and welding area..........................................15
2.10.4.Danger of sqeezing at clamping tools and guide rails......................................................16
2.10.5.Danger of cutting and catching clothes by the cutter.......................................................16
2.10.6.Tilting danger of the machine...........................................................................................16
2.10.7.Risk of injury by noise.......................................................................................................17
2.10.8.Danger of injury by cutting chips......................................................................................17
2.10.9.Danger of injury or damage by entering...........................................................................17
2.11.Structural modifications on the machine.........................................................................17
2.12.Warranty and liability..........................................................................................................17
3.FUNCTIONAL DESCRIPTION ...................................................................................... 18
4.OPERATING AND INDICATING ELEMENTS .............................................................. 19
4.1.Basic machine with carriage .............................................................................................19
4.2.Basic machine.....................................................................................................................20

Kunststoffschweißtechnik
Contents
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4.2.1.Reducer inserts and assembling aid (optional)................................................................21
4.3.Hydraulic aggregate and hydraulic blocks ......................................................................23
4.4.Heating element ..................................................................................................................25
4.4.1.How to adjust the travel speed of the heating element....................................................26
4.4.2.Heating element zones.....................................................................................................26
4.5.Pipe cutter ...........................................................................................................................27
4.6.Front leveling leg ................................................................................................................29
4.7.Rear leveling leg .................................................................................................................30
4.8.How to remove the carriage...............................................................................................30
4.9.How to fix clamping tools ..................................................................................................31
4.10.Stub end holder (optional).................................................................................................32
4.10.1.How to put the stub end holder onto the transport rack...................................................33
4.11.Pipe jack (optional).............................................................................................................34
4.12.Vacuum device (optional) ..................................................................................................35
4.13.Switch cabinet.....................................................................................................................36
4.13.1.Fuses in the switch cabinet..............................................................................................37
4.13.1.1.Additional keyboard for diagnosis test.................................................................38
5.STARTING AND OPERATING...................................................................................... 39
5.1.Safety indications ...............................................................................................................39
5.2.Remote control....................................................................................................................40
5.2.1.Meaning of control levers 1 - 6 within mode select 1 - 6..................................................41
5.2.2.Emergency stop switch.....................................................................................................42
5.2.2.1.Emergency stop switch with key..............................................................................42
5.2.3.Accumulator for operator console ....................................................................................42
5.3.How to switch on the machine..........................................................................................43
5.3.1.Lab menu..........................................................................................................................43
5.3.2.SD – card and drive..........................................................................................................45
5.3.3.Read-out WICON with USB card reader (optional)..........................................................45
5.3.3.1.Data format of WICON.TXT on the SD-card ...........................................................46
6.WELDING PROCESS.................................................................................................... 47
6.1.How to insert and clamp the pipes ...................................................................................47
6.2.How to plane the pipe ends...............................................................................................48
6.3.How to check pipe mismatch ............................................................................................49
6.4.Drag pressure measurement.............................................................................................49
6.5.Aligning................................................................................................................................50
6.6.Heating.................................................................................................................................50
6.7.Change-over........................................................................................................................50
6.8.Cooling / Joining.................................................................................................................51
6.9.End of welding ....................................................................................................................51
7.DIAGNOSIS PROGRAM ............................................................................................... 52

Kunststoffschweißtechnik
Contents
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8.MAINTENANCE, CARE AND REPAIR ......................................................................... 54
8.1.Maintenance and inspection, repair..................................................................................54
8.2.Storage.................................................................................................................................55
8.3.Clamping elements.............................................................................................................55
8.4.How to clean the machine..................................................................................................55
8.5.How to check the hydraulic oil level for welding.............................................................55
8.6.Used hydraulic oil...............................................................................................................55
8.7.How to vent the hydraulic cylinders.................................................................................56
8.8.Protect machine parts against corrosion.........................................................................56
8.9.Cutter....................................................................................................................................57
8.10.How to lubricate the guidings for the leveling legs ........................................................57
8.11.Vacuum device (optional) ..................................................................................................58
8.12.Disposal...............................................................................................................................58
9.TRANSPORT................................................................................................................. 59
9.1.How to detach the flexible clamping rings.......................................................................59
9.2.How to fix the cutter in the machine.................................................................................61
9.3.How to swing in the heating element ...............................................................................61
9.4.How to remove the carriage...............................................................................................62
9.5.How to swing in the front leveling legs............................................................................62
9.6.How to swing in the rear leveling leg ...............................................................................63
10.ELECTRIC DIAGRAMS................................................................................................. 64
11.DECLARATION OF CONFORMITY............................................................................ 120

Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone ++49 7152 9939 - 0
W. Dommer Söhne GmbH D-71254 Ditzingen-Heimerdingen Fax ++49 7152 9939 - 40
website: www.widos.de email: [e-mail]
07.02.13 Working Instructions WIDOS 25000 mobile Page 7 of 116
1. Description of the product
This chapter gives important basic information about the product and its prescribed use.
All technical details of the machine are put together as a general arrangement.
1.1. Usage and purpose-oriented use
The WIDOS 25000 mobile has been designed for the heating element butt welding of pipes
and fittings with a diameter range from OD 1600 mm (optional) up to OD 2500 mm.
It is a machine for construction sites and particularly designed for the usage on-site, as well as
in the workshop.
The carriage is removable for welding; the machine is leveled by four leveling legs.
All use going beyond is not purpose-oriented.
The manufacturer is not responsible for damages caused by misuse.
The risk is held only by the user.
Also part of the purpose oriented use is
respecting all the indications of the working instructions and
performing the inspection and maintenance work.
1.2. Safety measures
In case of wrong use, wrong operation or wrong maintenance, the machine itself or products
standing nearby can be damaged or destroyed.
Persons being in the endangered area may be injured.
Therefore these working instructions have to be thoroughly read and the corresponding safety
regulations must be necessarily adhered to.
1.3. Conformity
The machine corresponds in its construction to the valid recommendations of the
European Community as well as to the according European standard specifications.
The development, manufacturing and mounting of the machine were made very
carefully.

Kunststoffschweißtechnik
Description of the product Chapter 1
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1.4. Machine overview
Rear leveling leg
Front leveling leg, flat
Left clamping tools
Switch cabinet
Pi
p
e cutte
r
Heating element
Hydraulic pump
Right clamping tools
Remote control
Pipe clampers
Front leveling leg
Machine illumination
(floodlight)
Main cylinder for welding
Slewing cylinder for opening /
closing the clamping tools
Abdominal belt
Cylinder for transverse
motion of the pipes
Cylinder for transverse
motion of the pipes
Carriage

Kunststoffschweißtechnik
Description of the product Chapter 1
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1.5. Designation of the product
The product is designated by type labels which are attached at the crane, at the aggregate, at
the heating element, at the planer and at the basic machine.
They contain the type, the serial number and the year of construction of the machine.
1.5.1. Technical data
All important technical data of each single component are displayed.
They allow rapid information about the working capacity and the structure.
1.5.1.1. WIDOS 25000 mobile General data
Pipe diameter range: OD 1600 mm (optional) – OD 2500 mm
Material which can be welded: PP, PE 80, PE 100
Weight: appr. 27 t, complete including accessories
Emissions -Noise occurs over 80 dB (A); when working with
the machine it is obligatory to wear ear protection!
- When using the named pipe materials and when
welding below 260 °C no toxicant damp arises
Ambient conditions in the welding
area: -take care for cleanness (no dust at the welding
area)
-If secured by an appropriate measurement that
allowed conditions for welding are indicated, it is
possible to work in any outside temperature
condition as far as the welder is not constrained in
its manual skill.
-avoid humidity, if necessary use a welding tent
-avoid strong sun rays influence
-protect from wind, shut pipe ends
Feeding CEE 125 A; 83 kW; 400 V; 50 Hz
1.5.1.2. Basic frame
Material frame: Structural steel
Material reduction inserts: Steel
Ø cylinder / Ø piston rod (4 pieces): 100 mm / 60 mm
Stroke length of cylinder: 1400 mm
Max. force (F=P*A): 201,06 kN (at p= 100 bar)
502,65 kN (at p = 250 bar)
Length (wide) appr.: 7450 mm including carriage
7145 mm without carriage
Height appr.: 4955 mm including carriage and open clamping ring
4400 mm without carriage and open clamping ring
Depth appr.: 8255 with open clamping rings

Kunststoffschweißtechnik
Description of the product Chapter 1
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1.5.1.3. Hydraulic aggregate
Power: 22 kW
Voltage: 400 V (±10%)
Current: 39,85 A (±10%)
Frequency: 50 Hz
Hydraulic oil tank: appr. 175 L
Speed: 1470 rpm
Insulation system IP 54
Max. working pressure of pump: appr. 250 bar
Working pressure: 0-250 bar adjustable
1.5.1.4. Heating element
Power: 57,6 kW
Voltage: 400V (+-10%)
Current: 252 A (+-10%)
Frequency: 50 Hz
Outside-Ø: 2600 mm
Inside-Ø: 1600 mm
Surface: anti-stick coated with PTFE plastic film
1.5.1.5. Pipe cutter
Hydraulic motor: OMR 80
Speed: appr. 21 rpm
Inlet pressure: 175 bar (factory-set)
1.5.1.6. Vacuum device AF 14 (optional)
Power: 2,2 kW
Voltage: 400V (+-10%)
Current: 5 A (+-10%)
Frequency: 50 Hz

Kunststoffschweißtechnik
Description of the product Chapter 1
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1.6. Equipment (optional)
1 set Reduction insert OD 2100 mm in clamping tool OD 2500
1 set Reduction insert OD 2000 mm in clamping tool OD 2500
1 set Reduction insert OD 1600 mm in reduction insert OD 2000
1 Assembling aid for reduction insert
16 Bolt for reduction insert
1 Stub end holder complete with clamping elements
1 Vacuum device AF 14 including chip tank
2 Floodlight Lumen including illuminant (0853218), mobile
1.7. Wear parts, tools and accessories
Following tools and accessories are part of the delivery:
2 Q-Cut Insert (151.2-45-80)
6 Q-Cut infeed plate 4G (151.2-800-4E) with clamping screw (3212012-259)
50 l Hydraulic oil
10 Heating cartridge Ø 16 x 550 mm / 800 W / 400 V / Al 1,5 m
6 Temperature sensor PT 1000 (H09086)
2 Heating element relay
PTFE – fiber glass 0,25 mm
1 each Allen key, tilted size 14 / 19
1 Allen key with T-grip size 5
1 each Spanner wrench size 30 / 36
1 Socket wrench size 36
1 Torx-Screw driver T15
1 Cordless impact wrench 180 AFT-W 1,5
1 Nut for cordless impact wrench size 30
1 Wire rope with hook (J9994)
1 Manual for vacuum device AF14 (Company Felder, optional)

Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone ++49 7152 9939 - 0
W. Dommer Söhne GmbH D-71254 Ditzingen-Heimerdingen Fax ++49 7152 9939 - 40
website: www.widos.de email: [e-mail]
07.02.13 Working Instructions WIDOS 25000 mobil Page 12 of 116
2. Safety rules
The base for the safe handling and the fault-free operation of this machine is the knowledge of
the basic safety indications and rules.
These working instructions contain the most important indications to run the machine safely.
The safety indications are to be followed by all persons working on the machine.
2.1. Explanation of the symbols and indications
In the working instructions, following denominations and signs are used for dangers:
This symbol means a possibly danger for the life and the health of persons.
The disrespect of these indications may have heavy consequences for the
health.
This symbol means a possible dangerous situation.
The disrespect of these indications may cause slight injuries or damages on
goods.
This symbol means a possible dangerous situation due to hot surfaces.
The disrespect of these indications may conduct to heavy burns, respectively
to self-ignition or even fire.
This symbol means a possible dangerous situation by moving parts of the
machine
The disrespect of these indications may cause heavy crushing of parts of the
body resp. damages of parts of the machine.
This symbol means a possible risk of injury by noise exceeding 80 dB (A).
Ear protection is obligatory
This symbol means a possible danger of injury by cutting chips.
It is obligatory to wear safety goggles.
This symbol gives important indications for the proper use of the machine.
The disrespect of these indications may conduct to malfunctions and damages
on the machine or on goods in the surrounding.
This symbol indicates a possible risk of injuring to persons or damage to the
machine.
Do not enter areas which are marked by this symbol.
Under this symbol you get user tips and particularly useful information.
It is a help for using all the functions on your machine in an optimal way and
helps you to make the job easier.
The regulations for the prevention of accidents are valid (UVV).

Kunststoffschweißtechnik
Safety rules Chapter 2
07.02.13 Working Instructions WIDOS 25000 mobile Page 13 of 116
2.2. Obligations of the owner
The owner is obliged only to let persons work at the machine, who
know about basic safety and accident prevention rules and are instructed in the handling of
the machine, as well as who
have read and understood the safety chapter of this manual and certify this by their
signature.
The safety-conscious working of the staff has to be checked in regular intervals.
2.3. Obligations of the worker
All persons who are to work at the machine are obliged before working:
to follow the basic safety and accident protection rules.
to have read and understood the safety chapter and the warnings in this manual and to
confirm by their signature that they have well understood them.
to inform themselves about the functions of the machine before using it.
2.4. Measures of organization
All equipment required for personal safety is to be provided by the owner.
All available safety equipment is to be inspected regularly.
2.5. Information about safety precautions
The working instructions have to be permanently kept at the place of use of the machine.
They are to be at the operator's disposal at any time and without effort.
In addition to the manual, the common valid and the local accident protection rules and
regulations for the environmental protection must be available and followed.
All safety and danger indications on the machine have to be in a clear readable condition.
Every time the machine changes hands or is being rent to third persons, the working
instructions are to be sent along with and their importance is to be emphasized.
2.6. Instructions for the staff
Only skilled and trained persons are allowed to work at the machine.
It must be clearly defined who is responsible for transport, mounting and dismounting,
starting the operation, setting and tooling, operation, maintenance and inspection, repair
and dismounting.
A person who is being trained may only work at the machine under supervision of an
experienced person.

Kunststoffschweißtechnik
Safety rules Chapter 2
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2.7. Maintenance and inspection, repair
All maintenance and repair work have to be basically performed with the
machine in off position.
During this the machine has to be secured against unauthorized switching on.
Prescribed maintenance and inspection work should be performed in time.
The DVS gives the advice of inspection work after 1 year.
For machines with a specially high usage percentage the testing cycle should be
shortened.
The work should be performed at the WIDOS GmbH company or by an
authorized partner.
2.8. Dangers while handling the machine
The machine WIDOS 25000 mobile has been constructed according to the latest technical
standard and the acknowledged technical safety rules.
However, dangers for the operator or other persons standing nearby may occur. Also material
damages are possible.
The machine may only be used
according to the purpose-oriented usage
in safety technical impeccable status
Disturbances which may affect the safety of the machine must be cleared immediately.
2.9. Dangers caused by electric energy
Only skilled persons are allowed to work at electrical appliances!
The electrical equipment of the machine has to be checked regularly.
Loose connections and damaged cables have to be replaced immediately.
If work at alive parts are necessary, a second person has to assist who can disconnect the
machine from the mains if necessary.
The machine has to be protected from rain and dropping water.
According to VDE 0100, the use on construction sites is only allowed with a power
distributor with a FI-safety switch.
Especially take care during the installation of the carriage, depending on the transport
condition etc. that the lines are stored on the shelves and cannot get jammed.

Kunststoffschweißtechnik
Safety rules Chapter 2
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2.10. Specific dangers
2.10.1. Danger of stumbling over electric / hydraulic wires
Make sure that no person has to step over the wires.
Do not bend or jam the wires and cables.
Lay the wires in such a way that the danger is kept to a minimum.
Especially take care during the installation of the carriage, depending on the
transport condition etc. that the lines are stored on the shelves and cannot
get jammed.
2.10.2. Dangers caused by the hydraulics
System parts and pressure hoses should be depressurized before the beginning
of any repair work. Even if the machine is switched off, pressure may be in the
hydraulic accumulator!
There is a danger of injuring the eyes by hydraulic oil squirting out.
Damaged hydraulic hoses have to be immediately replaced.
Make a visual inspection of the hydraulic hoses before each work beginning.
The hydraulic oil is inedible!
2.10.3. Danger of combustion by heating element and welding area
You can burn yourself, inflammable materials can be ignited.
The heating element temperature is heated up to more than 250 °C!
Do not leave the heating element unsupervised.
Do not touch the surfaces of the heating element.
Take care that you do not remove resp. fold the heat protection film.
Take enough safety distance to inflammable materials.
Do wear safety gloves.
Make sure that no person is in the driving range of the heating element.
When cleaning the hot heating element with detergents (e.g. with PE cleaner) there is the
danger of inflammation. For this reason, please take care that the inflammation point is
above the actual temperature of the heating element.
Do not bring any fire sources (e.g. cigarettes) close thereto.

Kunststoffschweißtechnik
Safety rules Chapter 2
07.02.13 Working Instructions WIDOS 25000 mobile Page 16 of 116
2.10.4. Danger of squeezing at clamping tools and guide rails
Considerable injuries by squeezing may result from:
- Shutting and opening the clamping tools.
- Driving-in cutter and heating element.
- Driving the machine back and forth, on the one hand between the inner clamping
rings, on the other hand between the outer clamping rings and the ejectors.
- Mounting the reducer inserts.
- Clamping the pipes.
Do not reach or tread between the inner clamping rings if the pipes have still not been
clamped.
Make use of a lifting device during the installation of the reducer inserts and do not reach
between reducer insert and clamping tool.
Do not hinder the opening and shutting slides.
2.10.5. Danger of cutting and catching clothes by the cutter
You can cut yourself or even get broken bones, the knives are very sharp!
Only wear clothes tight to the body.
Do not wear rings or jewellery during the work.
If necessary wear a hair-net.
Do not touch the knives.
Wear gloves while you replace the knives.
If you are working within the machine, protect the area of the knives at the
cutter (e.g. by plastic film/cardboard/cloths) in order that you cannot cut
yourself at the knives.
Make sure that nobody steps into the pipes while the cutter is working.
Never remove cutting chips while the cutter is working.
Make sure that nobody can activate the remote control while you are
driving the cutter back and forth by the cordless impact wrench!
2.10.6. Tilting danger of the machine
The machine may tilt / fall over unless it has been aligned and fixed by the
leveling legs!
Always drive the leveling legs out thus far until the machine is aligned and
fixed with or without carriage.
Never open the clamping tools unless the machine has been fixed by the
leveling legs.

Kunststoffschweißtechnik
Safety rules Chapter 2
07.02.13 Working Instructions WIDOS 25000 mobile Page 17 of 116
2.10.7. Risk of injury by noise
Noise exceeding 80 dB (A) may occur; during working it is obligatory to wear ear
protection!
2.10.8. Danger of injury by cutting chips
You may get injured by cutting chips flying around!
Necessarily wear protective goggles during cutting!
Never remove the cutting chips resp. oddments while the cutter is running.
2.10.9. Danger of injury or damage by entering
You may get injured resp. the machine may get damaged!
Do not enter any areas marked by this symbol.
Especially be careful while entering the machine; do not step onto lines or
flexible elements.
2.11. Structural modifications on the machine
No modifications, extensions or reconstructions may be made on the machine without
permission of the manufacturer.
Machine parts which are not in a perfect condition are to be replaced immediately.
Only use original WIDOS spare and wear parts.
In case of purchase orders please always state the machine number!
2.12. Warranty and liability
Fundamentally our "General Sales and Delivery Conditions" are valid.
They are at the owner's disposal latest when signing the contract.
Guarantee and liability demands referring to personal injuries or damages on objects are
excluded if they are caused by one or several of the following reasons:
not using the machine according to the prescriptions
inexpert transport, mounting, starting, operating, and maintenance of the machine
running the machine with defective or not orderly mounted safety appliances
ignoring the information given in this manual
structural modifications on the machine without permission
unsatisfactory checking of parts of the machine, which are worn out
repairs performed in an inexpert way
In case of catastrophes and force majeure

Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone ++49 7152 9939 - 0
W. Dommer Söhne GmbH D-71254 Ditzingen-Heimerdingen Fax ++49 7152 9939 - 40
website: www.widos.de email: [e-mail]
07.02.13 Working Instructions WIDOS 25000 mobile page 18 of 116
3. Functional description
Basically, the international and national process guidelines are to be
followed!
In order to weld, put the machine without carriage onto the floor and align and fix it by the
leveling legs.
The plastic pipes are clamped in the clamping devices.
Afterwards, cut the pipe ends plane and parallel by means of the cutter and check the pipe
mismatch.
The cleaned and heated heating element is inserted and the pipes are pressed against the
heating element under defined adjusting pressure. This process is called "adjusting".
After the prescribed bead height being reached, pressure is reduced, the heating time begins.
The function of this time is to heat up the pipe ends.
After expiration of the heating time, the slides are opened, the heating element is moved out of
machine in the basic position and the pipes are driven together again.
The time gap from moving out of the heating element until moving together the pipes is called
change over time.
The pipes are joined under prescribed welding pressure and then cool down under pressure
(cooling time).
The welded joint can be unclamped, the welding process is finished.
Heating element heats
the pipes up to welding
temperature
Finished welding with
internal and external
bead

Kunststoffschweißtechnik
WIDOS Einsteinstr. 5 Phone ++49 7152 9939 - 0
W. Dommer Söhne GmbH D-71254 Ditzingen-Heimerdingen Fax ++49 7152 9939 - 40
website: www.widos.de email: [e-mail]
07.02.13 Working Instructions WIDOS 25000 mobile page 19 of 116
4. Operating and indicating elements
4.1. Basic machine with carriage
No. Denomination Function
1 Basic machine For cutting and welding the pipes / workpieces
2 Rear leveling leg
(2 pieces) For aligning the machine with or without carriage
3 Carriage For transporting the machine, may be removed
4 Front leveling leg,
flat version For aligning the machine with or without carriage
5 Front leveling leg For aligning the machine with or without carriage
1
2
3
4
5

Kunststoffschweißtechnik
Operating and indicating elements Chapter 4
07.02.13 Working Instructions WIDOS 25000 mobile Page 20 of 116
4.2. Basic machine
No. Denomination Function
6 Left clamping ring - are opened / shut together
- are driven together to the right / left
7 Right clamping ring - are opened / shut together
- are driven together to the left / right
8 Pressure gauge,
analogue - attached to each clamping ring, showing the current clamping pressure
9 Switch cabinet - with main switch, emergency stop and power sockets for
illumination, power sockets for vacuum and SD card drive;
different interfaces and fuses
6 7
8
9
10
14
12
11
15
13
16
(10)
18
17