widos 26000 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 26000
Keep for further use!

Kunststoffschweißtechnik
Product identification
28.10.13 Working Instructions WIDOS 26000 Page 2 of 101
Model: Heating element butt welding machine
Type: WIDOS 26000
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
28.10.13 Working Instructions WIDOS 26000 Page 3 of 101
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.
10/28/2013 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
28.10.13 Working Instructions WIDOS 26000 Page 4 of 101
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..................................................................................................8
1.5.1. Technical data ....................................................................................................................8
1.5.1.1. WIDOS 26000 General data.....................................................................................9
1.5.1.2. Basic frame................................................................................................................9
1.5.1.3. Heating element.......................................................................................................10
1.5.1.4. Pipe cutter................................................................................................................10
1.5.1.5. Reception box..........................................................................................................10
1.6. Equipment (optional)..........................................................................................................10
1.7. Wear parts, tools and accessories....................................................................................11
1.8. Wear parts ...........................................................................................................................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 crushing at clamping tools and guide rails ......................................................16
2.10.5. Danger of cutting and catching clothes by the cutter.......................................................16
2.10.6. Risk of injury by noise.......................................................................................................17
2.10.7. Danger of injury by cutting chips......................................................................................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.....................................................................................................................19
4.1.1. Reducer inserts ................................................................................................................20
4.1.2. Puller.................................................................................................................................20

Kunststoffschweißtechnik
Contents
28.10.13 Working Instructions WIDOS 26000 Page 5 of 101
4.1.3. Hydraulic couplings for clamping cylinder and pipe cutter...............................................21
4.1.4. Hydraulic aggregate .........................................................................................................21
4.1.5. Switch cabinet ..................................................................................................................22
4.1.5.1. Control lamp for heating element zone 1 - 4 ...........................................................23
4.1.5.2. Control lamp: < >.................................................................................................23
4.1.5.3. Switch: < >.............................................................................................................23
4.1.5.4. Main switch ..............................................................................................................23
4.1.6. Emergency stop................................................................................................................24
4.1.7. Fuses in the switch cabinet ..............................................................................................24
4.1.8. Basic machine without fourth clamping ring.....................................................................25
4.2. Heating element ..................................................................................................................26
4.3. Pipe cutter ...........................................................................................................................27
4.3.1. How to work with the pipe cutter ......................................................................................28
4.4. Remote control....................................................................................................................29
4.4.1. Meaning of control levers 1 - 6 within mode select 1 - 6..................................................30
4.4.2. Accumulator for operator console ....................................................................................31
4.5. Support: ladder ...................................................................................................................31
4.6. Support: positioning tool for spindles .............................................................................32
5. STARTING AND OPERATING...................................................................................... 33
5.1. Safety indications ...............................................................................................................33
5.2. How to switch on the machine..........................................................................................34
5.2.1. Lab menu..........................................................................................................................34
6. WELDING PROCESS.................................................................................................... 36
6.1. How to insert and clamp the pipes ...................................................................................36
6.2. How to plane the pipe ends ...............................................................................................37
6.3. How to check pipe mismatch ............................................................................................38
6.4. Drag pressure measurement.............................................................................................38
6.5. Aligning................................................................................................................................39
6.6. Heating.................................................................................................................................39
6.7. Change-over........................................................................................................................39
6.8. Cooling / Joining.................................................................................................................40
6.9. End of welding ....................................................................................................................40
7. MAINTENANCE, CARE AND REPAIR ......................................................................... 41
7.1. Maintenance and inspection, repair..................................................................................41
7.2. Storage.................................................................................................................................42
7.3. Clamping elements.............................................................................................................42
7.4. How to clean the machine..................................................................................................42
7.5. How to check the hydraulic oil level for welding.............................................................42
7.6. Used hydraulic oil...............................................................................................................42
7.7. How to vent the hydraulic cylinders.................................................................................43

Kunststoffschweißtechnik
Contents
28.10.13 Working Instructions WIDOS 26000 Page 6 of 101
7.8. Protect machine parts against corrosion.........................................................................43
7.9. Cutter....................................................................................................................................44
7.10. Disposal...............................................................................................................................44
8. TRANSPORT................................................................................................................. 45
8.1. How to rebuild the basic machine for truck transport....................................................45
8.2. How to rebuild the basic machine for container transport ............................................46
8.3. Assembly of the basic machine ........................................................................................48
9. ELECTRIC AND HYDRAULIC DIAGRAMS.................................................................. 49
10. DECLARATION OF CONFORMITY............................................................................ 101

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]
28.10.13 Working Instructions WIDOS 26000 Page 7 of 101
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 26000 has been designed for the heating element butt welding of pipes and
fittings with a diameter range from OD 2200 mm (optional) up to OD 2600 mm.
It is a machine for construction sites and particularly designed for the usage on-site, as well as
in the workshop.
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
28.10.13 Working Instructions WIDOS 26000 Page 8 of 101
1.4. Machine overview
1.5. Designation of the product
The product is designated by type labels which are attached at the aggregate, at the heating
element, at the pipe cutter 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.
Basic machine Protection box Heating element
Pipe cutter
Abdominal belt
Remote control

Kunststoffschweißtechnik
Description of the product Chapter 1
28.10.13 Working Instructions WIDOS 26000 Page 9 of 101
1.5.1.1. WIDOS 26000 General data
Pipe diameter range: OD 2200 mm (optional) – OD 2600 mm
Material which can be
welded: PP, PE 80, PE 100
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; 108 kVA; 83 kW; 400 V; 50 Hz
1.5.1.2. Basic frame
Material frame: Structural steel
Material reduction inserts: Steel
Ø Welding cylinder / Ø piston rod: 100 mm / 60 mm
Stroke length of welding cylinder: 1000 mm
Max. force (F=P*A): 100,5 kN (at p= 100 bar)
241,2 kN (at p = 240 bar)
Ø Clamping cylinder / Ø piston rod: 100 mm / 60 mm
Stroke length of clamping cylinder: 200 mm
Dimensions (l x w x h): 3425 x 4400 x 3450 mm
Hydraulic pump :
Power: 22 kW
Voltage: 400 V (±10%)
Current: 40,5 A (±10%)
Frequency: 50 Hz
Hydraulic oil tank: appr. 175 L
Speed: 1470 rpm
Insulation system IP 54
Max. working pressure of pump: appr. 240 bar
Working pressure: 0-240 bar adjustable
Weights:
Basic frame without reduction inserts: appr. 8,5 t
2 clamping rings inclusive trusses: appr. 1,2 t
Reduction insert (OD 2200 mm): appr. 0,22 t / piece

Kunststoffschweißtechnik
Description of the product Chapter 1
28.10.13 Working Instructions WIDOS 26000 Page 10 of 101
1.5.1.3. Heating element
Power: 82,8 kW
Voltage: 400V (+-10%)
Current: 360 A (+-10%)
Frequency: 50 Hz
Outside-Ø: 2800 mm
Inside-Ø: 1500 mm
Surface: anti-stick coated with PTFE plastic film
Weight: appr. 1,5 t
1.5.1.4. Pipe cutter
Hydraulic motor: OMR 80
Speed: appr. 21 rpm
Inlet pressure: 175 bar (factory-set)
Weight: appr. 1,0 t
1.5.1.5. Reception box
Dimensions (l x w x h): 3450 x 1500 x 3050 mm
Weight: appr. 0,8 t
1.6. Equipment (optional)
1 set Reduction insert OD 2500 mm in clamping tool OD 2600 mm
1 set Reduction insert OD 2400 mm in clamping tool OD 2600 mm
1 set Reduction insert OD 2200 mm in reduction insert OD 2600 mm
16 Bolt for reduction insert

Kunststoffschweißtechnik
Description of the product Chapter 1
28.10.13 Working Instructions WIDOS 26000 Page 11 of 101
1.7. Wear parts, tools and accessories
Following tools and accessories are part of the delivery:
2 Positioning tool for spindle / clamping cylinder
1 Socket wrench size 90 (for clamping the clamping rings)
1 Torx-Screw driver T15
1 Cordless impact wrench 180 AFT-W 1,5
1 Nut for cordless impact wrench size 30
1 each Allen key, tilted size 6 / 10 / 14
1 Allen key with T-grip size 6
1 each Spanner wrench size 30 / 36
1 Wire rope with hook (J9994)
2 PTFE – fiber glass 0,25 mm
2 Stepladder
1.8. Wear parts
2 PTFE – fiber glass 0,25 mm 2295214
4 Cutting insert SCFT 090408FN-TIN on request
4 Countersunk screw M 3,5 x 8 T15 on request
1 Heating element CNC 2295200
1 Heating segment above 2295201
1 Heating segment below 2295202
72 Heating cartridge Ø 16 x 700 mm / 1150 W / 400 V / AL 1,5 m on request
4 Temperature probe PT1000 H09086
12 Semi conductor relay 100 A ES20010
Hydraulic oil HLPD 35 on request

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]
28.10.13 Working Instructions WIDOS 25000 mobil Page 12 of 101
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.
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
28.10.13 Working Instructions WIDOS 26000 Page 13 of 101
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
28.10.13 Working Instructions WIDOS 26000 Page 14 of 101
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 26000 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
28.10.13 Working Instructions WIDOS 26000 Page 15 of 101
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.
Put the heating element back into the heat-protected box after welding.
Make sure that nobody is standing below the heating element while inserting it into the
basic machine resp. while storing it back into the heat-protected box.
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
28.10.13 Working Instructions WIDOS 26000 Page 16 of 101
2.10.4. Danger of crushing at clamping tools and guide rails
Considerable injuries by squeezing may result from:
- Shutting and opening the clamping tools.
- Inserting of pipe 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 ring and the basic machine.
- Mounting the reducer inserts.
- Clamping the pipes.
Do not reach or tread between clamping ring and pipes when inserting the pipes
Do not reach or tread between the inner clamping rings or clamped pipes.
Make use of a lifting device during the installation of the reducer inserts and do not reach or
tread between reducer insert and clamping tool.
Do not hinder the opening and shutting slide.
Special attention is to be taken while swinging the clamping cylinders / spindles with the
pressure discs. Do not reach between clamping tool and pressure disc.
Special attention is to be taken while clamping the clamping cylinders; do not reach into the
clamping area resp. touch the piston rods.
Always swing in the clamping cylinders / spindles completely and make sure that the
pressure discs rest with their entire surfaces before you clamp the cylinders / spindles.
Make sure that nobody is standing in the transport area of reducer inserts, clamping tools
pipe cutter and heating element while transporting a component.
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 remove the cutting chips or replace 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!
Make sure that nobody can activate the remote control while you are driving the pipe cutter
back and forth with the cordless screwdriver!
Make sure that nobody can touch the pipe cutter at the blades while being transported from
machine to heat-protected box.

Kunststoffschweißtechnik
Safety rules Chapter 2
28.10.13 Working Instructions WIDOS 26000 Page 17 of 101
2.10.6. Risk of injury by noise
Noise exceeding 80 dB (A) may occur; during working it is obligatory to wear ear
protection!
2.10.7. 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.
2.11. 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]
28.10.13 Working Instructions WIDOS 26000 page 18 of 101
3. Functional description
Basically, the international and national process guidelines are to be
followed!
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 lifted out of
machine 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]
28.10.13 Working Instructions WIDOS 26000 page 19 of 101
4. Operating and indicating elements
4.1. Basic machine
No. Denomination Function
1 Right clamping rings,
movable - for inserting the pipe, - driven together to the left / right
2 Left clamping rings, fixed - for inserting the pipe
- the outer clamping ring can be removed
3 Clamping cylinder - for clamping the pipes – all clamping rings must be
clamped individually
4 Hydraulic cylinder - for driving the basic machine to and fro and for applying
the welding force
5 Hydraulic couplings - quick-action couplings for clamping cylinders 1 – 4, cutter
rotate and lock cutter
6 Switch cabinet - with main switch, emergency stop and different interfaces,
control lamps and fuses
7 Connecting cable - connection with local power supply (400 V / 60 Hz / 108
kVA)
8 Spindles with clamping
nuts - clamping the pipes manually
9 Support axis - inserting the pipe cutter
- hang up heating element
10 Puller - to separate the heating element from the pipe ends after
heating
11 Hydraulic aggregate - for applying the welding pressure and clamping pressure
- for all hydraulic motions
12 Hydraulic couplings - quick-action couplings, free couplings e.g. for pipe
brackets
3
2
1
5
6
8
9
7
11
12
10
4

Kunststoffschweißtechnik
Operating and indicating elements Chapter 4
28.10.13 Working Instructions WIDOS 26000 Page 20 of 101
4.1.1. Reducer inserts
Pipes with OD 2600 mm have to be clamped in the basic clamping devices.
For pipes with OD 2200 mm to OD 2500 mm, you have to use reduction inserts.
The front surfaces of the reducer inserts feature drill holes; you can mount the attached lifting
eyebolts here.
Insert the reducer insert flush into the lower clamping ring.
Put the upper clamping rings flush onto the reducer inserts.
Fix the parts each with the bolts for reducer
insert.
The bolt features an elastic pressure piece in
order to keep the bolt within the drill hole.
4.1.2. Puller
Take care that the heating element lies within the
throat of the puller.
If necessary you can shift the puller horizontally.
Lifting eyebolts
Bolt for reducer insert
Elastic pressure piece
Clamping ring
u
pp
er
p
art
Reducer insert
Bolt for reducer insert