Plastic Fabrication
PLASTIC WELDING

Extrusion andhot-air hand welders
The right choice for the specialist

leister.com

We know how.

2

Dear Leister customers
The selection of machines and equipment greatly influences the quality and success of your work.
That is why we offer solutions that you can always count on and with which you are guaranteed to
be able generate added value.
Our goal is to exceed your expectations. All of our devices and machines are designed and produced in Switzerland, because for us, quality and innovation are the highest priority. We have morethan 70 years of experience in the fields of plastic welding and industrial process heat applications, and are constantly expanding this. Through direct contact with you in your workshop, at theconstruction site and through social media, we collect the necessary input that we then incorporate into the next generation of devices. Our engineers and designers combine your ideas with thelatest technology to create unique products that meet your requirements. Here, we place particular importance on functionality, ergonomics and durability. That is why you can count on a reliable
welder in all locations and environments.
We maintain a global and close-knit service and distribution network which enables us to serve
you quickly and easily. Our expert distributors and own associations ensure that you can accessour services across the globe.
In the following pages, see for yourself how our extensive product range will be able to support
you in your work. You will also find a great deal of useful information on plastic welding in the brochure. Motivated by our principle, “Leister. We know how,” we are eager to share our experience
with you in order to make your work easier.
I hope you enjoy reading our brochure!
Reto Britschgi
Product Manager Plastic Fabrication

3

Plastic welding with Leister
With plastic welding, workpieces made of thermoplastic are joined inseparably to one another using a combinationof thermal energy and pressure. Central factors are welding speed and the length of the welding process. Plastic
welding is used in many areas: For the processing of tarpaulins and plastic sealing sheets, on the roof, in earthworks,
hydraulic engineering or tunnel construction, for floor coverings, in vehicle repairs and in equipment construction.

Know-how

Welding seam geometries galvanic tankA

A

Fillet weld
The fillet weld is one of the mostfrequently-use seam geometries. It
is produced by welding two workpieces that meet in a T-joint.

B

Interior corner seamInterior corner seams are generally
used on difficult-to-reach locations.
Free forms and spline-shaped weld
seam geometries are welded mostefficiently like this.

C

Corner seam appearance
The outer corner seam is a fillet
weld in which the weld seam runs
along the edge of the workpieces
which are standing together. Consequently, the weld is made along theouter longitudinal side (edge).

E4leister.com

Possibilities of welding seams

a = seam size s = material thickness α = milling angle

s

s

s

a

s

a

α

α

Fillet welding seama = s * 0.7

BCorner outside seam

X-seams = 10 – 40 mm = α 60°
s = 50 – 60 mm = α 50°

V-seams = 5 – 20 mm = α 60°
s = 25 – 30 mm = α 50°

Overlap seamCD

X-seamThe double-V seam is also known asan X-seam. It is a type of butt weld
and consists of a combination of two
V-seams on each of the two sides of
the components to be joined.

D

V-seamIn order to achieve the V-shaped
angle that is typical for the V-seam,
the workpieces are either beveled or
positioned at an appropriate angle toeach other.

D

Lap seam
Lap seams are mainly used forplastic sheets. Here, the sheets arearranged on top of each other andthe weld seam is laid on the upper
exposed material edge.

E

5

FUSION 2, compact and powerfulknow-how

Thermal joining of plastics
Plastic welding requires a correspondence between the threewelding parameters temperature, pressure and speed. In contrast to other joining methods, welding can achieve high resiliency
and a strong, homogeneous welding seam. Plastic compounds
are extremely robust and perfectly sealed when processed correctly. They can also be repaired without a loss of strength.

Hot gas welding with the torch separate
from filler rod (WF)
Hot gas welding with the torch separate from filler rod is used primarily for areas that are difficult to access and for short seams.
This welding process is preferred for processing amorphous
plastics, in particular PVC. Especially with manual welding, pay
special attention to maintaining uniform pressure and constant
speed.
During welding, press the wire by hand vertically onto the groove. The force applied depends on the base material chosen andthe dimension of the welding wire. Apply the heat flowing outof the tubular nozzle alternately to the welding wire and to thejoint in an oscillating motion in the direction of welding until theend of the seam is reached. When realized correctly with theright temperature and appropriate pressure, a welding seam isformed on both sides of the weld bead in the form of a uniform
double bead.

Welding filler

Welding nozzle

Pressure

Oscillation

Base material

Prewarming
Direction of work

High-speed hot gas welding (WZ)
High-speed hot gas welding requires a high-speed welding
nozzle that corresponds to the shape of the fill material. The
process is faster, more uniform, and consequently more efficientthan pendulum welding. Furthermore, larger cross-sectionalsurfaces of the welding wire can be processed in one pass. This
leads to less residual stress and thus to a lower welding effort.

6

Hold the welder with one hand, and with the other hand, press
the welding wire into the nozzle. The nozzle design divides the
hot gas, which in this way heats both the base material and thefill material. The latter is led through a preheating chamber andplasticized shortly before the two materials meet. The presser
flap on the end of the nozzle is responsible for the welding force.
You can finish the resulting weld seam using a suitable scraper
after the welding process.

Welding filler

Welding nozzle

Pressure

Pull welding nozzle
Prewarming

Base material
Direction of work

Hot gas extrusion welding (WE)
Hot gas extrusion welding is preferred over high-speed hot gas
welding for wall thicknesses from about 6 mm. With extrusion
welding, shorter working times, higher strength and lower internal stress is expected compared to manual welding. This leads
to higher process reliability and greater efficiency.
For this, you require a welding shoe corresponding to the welding geometry and a welding filler consisting of the same material as the base material, which is plasticized in the extruder.
First, put joining surfaces into the thermoplastic state using hot
air. Immediately press the extrudate onto the surfaces or into thejoint using the welding shoe. Depending on the working position,
you should apply different intensities of pressure. Welding speed
is determined by the quantity of extrudate and by the dimensionsof the weld seam. In addition, it must correspond to the prewarming of the base material.

Welding nozzle

Welding filler

Prewarming
Base material
Extruder screw
Pressureleister.com

Welding parameters for hand welding
Based on DVS 2207-3
Welding
Process

Free hand welding(WF)

Draw welding (WZ)

1)
2)
3)
4)
5)
6)

8

Materials

Abbreviations

High-density
PE-HD 4)polyethylene
Polypropylene,
PP-H; PP-B; PP-R
Types 1, 2, 3
Unplasticised
PVC-U
polyvinyl chloride
Chlorinated
PVC-C
polyvinyl chloride
Polyvinylidene
PVDF
fluoride
Acrylonitrile butadiene
ABS 6)
styrenePolycarbonate
PC 6)
Polyamide
PA 6)
Polybutylene terephtPBT 6)
halateLow-density
PE-LD 6)polyethylene
Polyurethane
PUR (Thermoplast) 6)
XENOY
XENOY PC/PBTB 6)
Plasticised
PVC-P 6)
polyvinyl chloride
Polyethylene terephthalaPETG 6)
te glycol-modified
High density polyethylene PE-HD
Polypropylene,
PP-H; PP-B; PP-R
Types 1, 2, 3
Unplasticised
PVC-U
polyvinyl chloride
Chlorinated
PVC-C
polyvinyl chloride
Polyvinylidene
PVDF
fluoride
Ethylene Chloro Tri Fluoro
E/CTFE 5)
Ethylene
Fluorinated ethylene
FEP
propylene
Tetrafluorethylen PerfluMFA
ormethylvinylether
Perfluoroalkoxy
PFAalkanes

Hot gastemperature 1)°C

Hot gas volume
flow 2)l/min

mm/minWelding force (N)with wire ø
3mm
4mm

300 … 320

40 … 50

70 … 90

8 … 10

20 … 25

305 … 315

40 … 50

60 … 85

8 … 10

20 … 25

330 … 350

40 … 50

110 … 170

8 … 10

20 … 25

340 … 360

40 … 50

55 … 85

15 … 20

20 … 25

350 … 370

40 … 50

45 … 50

15 … 20

25 … 30

350

N/A

N/A

N/A

N/A

350
400

N/A
N/A

N/A
N/A

N/A
N/A

N/A
N/A

350

N/A

N/A

N/A

N/A

270

N/A

N/A

N/A

N/A

300
350

N/A
N/A

N/A
N/A

N/A
N/A

N/A
N/A

350

N/A

N/A

N/A

N/A

200 … 215

N/A

N/A

N/A

N/A

300 … 340

45 … 55

250 … 350

15 … 20

25 … 35

300 … 340

45 … 55

250 … 350

15 … 20

25 … 35

350 … 370

45 … 55

250 … 350

15 … 20

25 … 35

370 … 390

45 … 55

180 … 220

15 … 25

30 … 35

365 … 385

45 … 55

200 … 250

15 … 25

30 … 35

350 … 380 5)

50 … 60 5)

220 … 250

10 … 15

N/A

380 … 390

50 … 60

60 … 80

10 … 15

N/A

395 … 405

50 … 60

60 … 80

10 … 15

N/A

400 … 410

50 … 60

70

10 … 15

N/A

Measured 5mm in the nozzle, in the centre of the nozzle opening.
Drawn-in cold air volume at the ambient pressure.
Depending on the welding filler material diameter and the welding groove geometry.
PE 63, PE 80, PE 100
Nitrogene recommended
LEISTER empiric parameters

Welding speed 3)

Please note:
The indicated welding parameter may vary depending on the ambient temperature and thematerial configuration.
Test welds need to be done and the parameter aligned accordingly! Leister takes noresponsibility for poor quality welding!

leister.com

Welding parameters for extrusion welding
Based on DVS 2207-4
Welding
Process

Extrusion welding
(WE)

1)
2)
3)
4)
5)
6)
7)

Material
temperature 1)°C

Hot gastemperature 2)°C

Hot gas volume
flow 3)l/min

Welding speed 5)

4)

210–230

250–300

150–400

200–350

PP-H; PP-B; PP-R

210–240

250–300

150–400

200–350

PVC-U

190–200

330–360

150–400

200–350

PVC-HI

170–180

280–340

150–400

200–350

PVC-C

195–210300–360

150–400

200–350

PVDF

240–260

280–350

150–400

200–350

PA 6
PC

280
270

315
315

150–400270

200–350
200–350

ABS

265

300

150

200–350

PS

245

280

150–400

200–350

200–230

200–290

150–400

200–350180

260–300

150–400

200–350

Materials
High-density
polyethylene
Polypropylene,
Types 1, 2, 3
Unplasticised
polyvinyl chloride
Impact resistant
polyvinyl chloride
Chlorinatedpolyvinyl chloride
Polyvinylidene
fluoride
Polyamide 6 6)
Polycarbonate 6)
Acrylonitrile butadienestyrene 6)
Polystirene 6)
Polypropylen Athylen
Propylen Terpolymer 6)
Polyurethane(Thermoplast) 6) 7)

Abbreviations
PE-HD

PP-EPDM
PUR

Measured with an insert thermometer at the exrudate outlet of the hand extruder.
Measured 5mm in the nozzle, in the centre of the nozzle opening.
Drawn-in cold air volume at the ambient pressure.
PE 63, PE 80, PE 100
Cold air intake volume at ambient pressure, depending on the output volume.
LEISTER empiric parameters
Welding rod has to be predryed

mm/minPlease note:
The indicated welding parameter may vary depending on the ambient temperature and thematerial configuration.
Test welds need to be done and the parameter aligned accordingly! Leister takes noresponsibility for poor quality welding!

9Know-how

Welding errors
In addition to a failure to adhere to the welding parameters, thefollowing errors can lead to cavities, vacuoles and poor weld
quality:• Excessively high temperature• Residual moisture in the welding filler• Excessively high air humidity• Wet hands• Excessively cold welding shoe
• Low-quality plastic

Base material and welding filler made of polyolefins can absorb
moisture. The thicker the seam, the more frequently these phenomena occur. For this reason, you should store materials ina dry place and in their original packaging. You should avoid
temperature differences between the welding parts to preventthe formation of condensation. Very thick welding seams must
be welded in several work steps.

Vacuoles are caused by the excessively fast cooling of large
weld seam cross-sections.
malleable, hot weld material

Formation of a solidedge layer

Cooling

Negativepressure is
produced

Rough surfaces on the seam can therefore be because...

Cooling• ...the welding shoe is too short.
• ...the welding shoe is too cold.
• ...the surface over which the welding shoe glides is toorough.

Bad example

10

Cavities in the seam

Good example

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Fields of application
Hot gas welding with the torch separate from filler rod, highspeed hot gas welding and hot gas extrusion welding are usedin many areas.
General tank construction
Plastic is preferred for producing receptacles and tanks. Depending on the storage medium, they have significant advantages
over metallic materials.
Galvanic
Galvanic processes are usually carried out using chemicals. The
baths must also be resistant to thermal and electrical influences.
Water management
Fresh water and service water infrastructures place high demands on hygiene and corrosion. Thermoplastics offer stablebehavior in this respect.

Aquaculture, greenhouse beds
Aquaculture and greenhouses are very demanding in terms of
microbes, fungi and chemical influences. Containers and pipes
must be leaktight and capable of being sterilized.
Pipeline construction
Polyethylene is the preferred material for unpressurized pipelines
and for jacket tubes for long-distance pipelines. It is very durable against mechanical stress and can be processed extremely
flexibly.
Plastic repair
Expertly performed repairs on thermoplastics restore 100% of
the original function.

Ventilation
Ventilation systems in industrial environments often transport
aggressive media. A long-term solution is only possible with theright plastic.
Maritime Industry
Boats, rafts and floating docks made of polyolefins are positively
buoyant by nature, extremely robust and resistant to salt water.

Storage tanks made of polyethylene

Galvanic bath made of polypropylene© Collini collini.eu

Working boats mad of polypropylene

11

WELDPLAST S2FUSION 3 C

WELDPLAST - Closed loop system

FUSION - Open loop system• Closed-loop control• Little welding experience required• Integrated display and temperature probe• Precise temperature independent of environmental factors or
quality of voltage source -> process reliability• DVS-compliant• Open-loop control• Requires more welding experience• Neither display nor temperature probe• Temperature depends on environmental factors and voltage
sourceWELDPLASTFUSION

open-loop
close-loop

Closed loop system

Open loop system

power electronic

heating element

thermocouple

potentiometer

power electronic

potentiometerheating element

controller
feedback loop

12

leister.com

The benefits of Leister at a glance:
Device components
Robust, corrosion-resistant components
High welding speeds and top performance
Durable heating elements
Ergonomic design
Intuitive to use
Made in Switzerland

Service
Everything available from a single source thanks to a wide
product range
Tight distribution network with short delivery times
Support and device demonstration by our field service
representatives
Complete quality check before delivery
Quick repair and service
Long spare parts guarantee when discontinued after 7 years

Plastic Fabrication
Overview of hand extruders
FUSION 1
WELDPLAST 600
WELDPLAST S4
WELDPLAST S2 / S2 PVC
WELDPLAST S1FUSION 3 / 3C
FUSION 2
WELDPLAST 200-i / 610-i
General accessories hand extruders

16
18 / 1920
21
22 / 23
24
25 / 26
27
28 / 29
30

Air purification system, Spain. Material: HD-PE
Hot-Air Hand Tools
TRIAC ST
TRIAC ATHOT JET SPENWELD A / PENWELD S
AIRSTREAM 100 / AIRSTREAM ST
ROBUST
DIODE SMINORLABOR S
General accessories
Welding rod

32 – 34
33 – 3435
36 / 37
38 / 3940
41 / 42
42
43
44
45

The Wave House, San Diego. Material: PVC

Electroplating tank, Turkey. Material: PP

15

The right tool for every application
LEISTER hand extruders differ in their method of process control, output volume and design. To achieve optimal
welding results, it is important to chose the right tool. Decisive selection criteria are the plastics to be processed,
the thickness of the welding material, the product requirements and the welder's expertise. The following two tables
serve as a selection guide. For more detailed information, please contact your LEISTER sales partner.

Product comparison
Digitally regulated extrusion welders

Device typeAir heated extrusion welders

WELDPLAST 600

WELDPLAST S4

WELDPLAST S2

WELDPLAST S1FUSION 3

FUSION 3C

FUSION 2

FUSION 1

Output (HDPE) kg / hr

3.9 – 6

1.5 – 4

0.6 – 2.3

0.2 – 0.8

1.8 – 3.6

1.8 – 3.6

1.3 – 1.8

0.2 – 0.8

Material

HD-PE, PP

HD-PE, PP

HD-PE, PP, PVC

PE, PP, PVC, etc.

HD-PE, PP

HD-PE, PP

HD-PE, PP

PE, PP

Wall thickness mm

20 – 40

15 – 25

10 – 20

5 – 1215 – 25

15 – 25

10 – 15

5 – 12mm

Welding rod

4–5

3–4/4–5

3–4

3–4

3–4/4–5

3–4/4–5

4

3–4

Weight kg

14

8.7

5.8

4.7

7.2

6.9

5.9

3.4

Length mm

821

560

450

435

690

588

450

435

Voltage V~

230

230

230

230 / 120

230

230

230

230

Screw extruder

yes

yes

yes

yes

yes

yes

yes

yes

yes

yes

yes

yes

no

no

no

no

Container construction
Pipeline construction
Landfills / civil engineering
Brushless blower
Remarks

1

1

1

1

2

2

2

3

Catalog page20

21

22 / 23

24

25 / 26

25 / 26

27

18 / 19very suitable
suitableunsuitable
				
				

1: Air and Plast temperatures electronically controlled with integrated display.
2: Hot air heated extruder temperature controlled manually.
3: Warm air heated extruder, air temperature electronically controlled with integrated display.

Overview of Extrusion Welders Output (kg / hr)
0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0
20 – 40

15 – 25
10 – 20
5 –12

16

6.0

WELDPLAST 600

WELDPLAST S4

WELDPLAST S2

WELDPLAST S1

10 – 15
5 – 12

5.5

15 – 25FUSION 3

15 – 25FUSION 3C

Wall thickness (ideal) mm
Min
Max

FUSION 2

FUSION 1

leister.com

17

Ingeniously simple – FUSION 1
Your satisfaction is our goal. Which is why we are developing welding devices to meet your requests and requirements. And with the usual LEISTER quality, of course. The reduced design of the FUSION 1 offers increased
maneuverability when welding. Flexibility guarantees an optimally mountable handle. Ingeniously simple extrusion
welding – FUSION 1.

Digitally regulated extrusion welder

FUSION 1
1

Rod shape:
Reduced design for increased maneuverability in small spaces

1

2

Double-sided wire intake:
For more flexibility when welding

3

LED light:
To illuminate the welding area

4

Handle:Can be mounted for one-handed
welding

2

3

18

4

leister.com

FUSION 1 – More flexibility during welding thanks to its slim design

Digitally regulated extrusion welder

FUSION 1

Accessories FUSION 1• Controlled: Automatically controlled air temperature• Suspension device: Effortlessly weld longer by hanging up
the device• Compact and slimline: Thanks to integrated air guide163.793

Welding shoe CL14 IA

172.570

Welding shoe small CL8 IA

163.778

Welding shoe K5/6 IA

163.780

Welding shoe K8/10 IA

163.779

Welding shoe K12 IA

163.782

Angled welding shoe AK-10 70°

163.784

Angled welding shoe AK-10 30°

163.785

Angled welding shoe AV-10 30°

163.786

Welding shoe Rohling IA

162.665

Insulation sleeve

Technical data
Voltage
Power
Materials

V~
W

Welding rod
Output 3 HD-PE
Output 4 HD-PE

mm
kg / hkg / hSize (L × B × H)

mm

Weight

kg

230
1200
PE, PP
3–4
0.2 – 0.5
0.3 – 0.8435 × 92 × 133(236 with handle)
3.4

Conformity marking
Protection class II
Article No.:
162.799 FUSION 1, 120 V / 1450 W, US plug
162.800 FUSION 1, 230 V / 1200 W, EU plug
163.165 FUSION 1, 230 V / 1200 W, CEE 3/16
163.163 FUSION 1, 230 V / 1200 W, CH plug
163.164 FUSION 1, 230 V / 1200 W, AU plug
166.367 FUSION 1, 220 V / 1100 W, KR plug
Included with purchase: FUSION 1, case, welding shoe, Allen key, instruction
manual, handle

General accessories

30

19

WELDPLAST S6:
Powerful hand extruder.
The powerful WELDPLAST 600 hand extruder is Leister’s most powerful extruder. Thanks to its high output
rate, it’s a convincing choice for welding large tanks andcontainers.

The WELDPLAST S6 is guided easily with the practical control
wheel grip

Digitally regulated extrusion welder

WELDPLAST 600

Accessories WELDPLAST 600• 6 kg output per hour
• Highest possible preheating capacity• Adjustable control wheel• Maintenance-free hot-air blower• Multifunctional display

146.239146.240

Welding shoe complete
54 × 40 × 52 mm blank welding shoe
74 × 50 × 58 mm blank welding shoe

146.241146.706
146.242145.89925 mm overlap
30 mm overlap
35 mm overlap
40 mm overlap

146.245146.246146.247

20 mm V-seam
25 mm V-seam
30 mm V-seam

146.232
146.233
146.234

20 mm fillet weld seam (a = 14 mm*)
25 mm fillet weld seam (a = 17.5 mm*)
30 mm fillet weld seam (a = 21 mm*)

146.644146.646146.652

Corner outside seam 10 mm
Corner outside seam 12 mm
Corner outside seam 15 mm

146.230
146.218

Corner seam
Corner seam

14 mm
20 mm

*a = Welding seam thickness
117.055

35 mm preheating nozzle, large

136.859

50 mm preheat nozzle, XL Large

Technical Data
Voltage
Power
Material
Welding rod
OutputSize (L × W × H)
WeightConformity markProtection class I

V~
W

230
3680
PE / PP

170.495

Insulating cuff WELDPLAST 600/605

mm
kg / hmmkg

4 or 5
3.9 – 6.0
809 × 140 × 273
12.2

173.307

Guide handle

Article No.:
170.461 WELDPLAST 600, 230 V / 3680 W, industrial plug

Included with purchase: WELDPLAST 600, overlap welding shoe, storage case

General accessories

2030

leister.com

WELDPLAST S4: The workmate.
The WELDPLAST S4 is the first extruder of its kind witha brushless, maintenance-free motor for generating preheated air. Output of up to four kilograms per hour ismade possible thanks to the S4's powerful drive system.

The powerful WELDPLAST S4 in use

Digitally regulated extrusion welder

WELDPLAST S4

Accessories WELDPLAST S4• Compact housing design reduces noise and guarantees
optimal cooling for the electronics and drive.
• Microprocessor regulates the welding process and monitors
the tool• Menu with function programs• Dual-sided, twist-free wire intake• Maintenance-free blower

Technical Data
Voltage
Power
Material
Welding rod
OutputSize (L × W × H)
WeightConformity markProtection class I

V~Wmm
kg / h
mm
kg

230
3680
PE / PP
3 – 4 / 4 – 5 mm
1.5 – 4.0
560 × 110 × 300
8.7

Article No.:116.948 WELDPLAST S4, 230 V / 3680 W, 3 – 4 mm, Euro plug,blank welding shoe
146.813 WELDPLAST S4, 230 V / 3680 W, 4 – 5 mm, Euro plug,
welding shoe K 15
Included with purchase: WELDPLAST S4, preheat nozzle large, medium and small,storage case146.239146.240

Welding shoe complete
54 × 40 × 52 mm blank welding shoe
74 × 50 × 58 mm blank welding shoe

146.241146.706
146.242145.89925 mm overlap
30 mm overlap
35 mm overlap
40 mm overlap

146.243
146.244146.245146.246146.247

12 mm V-seam
15 mm V-seam
20 mm V-seam
25 mm V-seam
30 mm V-seam

146.525
146.231146.232
146.233
146.234

12 mm fillet weld seam (a = 8.5 mm*)
15 mm fillet weld seam (a = 10 mm*)
20 mm fillet weld seam (a = 14 mm*)
25 mm fillet weld seam (a = 17.5 mm*)
30 mm fillet weld seam (a = 21 mm*)

146.642146.644146.646146.652

Corner outside seam 8 mm
Corner outside seam 10 mm
Corner outside seam 12 mm
Corner outside seam 15 mm

146.230
146.218

Corner seam
Corner seam

14 mm
20 mm

* a = Welding seam thickness
144.904

Angled adapter 45°

145.704

Angled adapter 90°
Caution: You must use welding shoes withan integrated air guide for this.

117.064

Side hot-air guide

117.065

Top hot-air guide

117.053
117.518
141.177

Preheat nozzle
20 mm, small
25 mm, medium
35 mm, large

149.723

Insulation sleeve WELDPLAST S4

General accessories

30

21

WELDPLAST S2 / S2 PVC: The masterpieces.
WELDPLAST S2 and S2 PVC are masterpieces of modern technology. While externally they fulfill the highest
requirements of functionality and design, their interior satisfies the highest expectations concerning the material tobe processed. The WELSDPLAST S2 PVC has integrated corrosion protection and has been especially designed
to satisfy the high requirements of PVC extrusion welding. Their perfect seam quality makes both – WELDPLAST
S2 and S2 PVC – reliable partners for today and tomorrow.
Digitally regulated extrusion welder

Digitally regulated extrusion welder

WELDPLAST S2

WELDPLAST S2 PVC• Maintenance-free blower• Perfect weld seam quality• Multifunctional display• Ergonomic and handy• Successfully operated worldwide• Optimized for PVC-U• Perfect weld seam quality• PVC specific extrusion menu
• Corrosion protection• Standby mode

Technical Data
Voltage
Power

Technical Data
V~
W

Material
Welding rod
Output 3 mm
Output 4 mm
Size (L × W × H)
WeightConformity markProtection class I

mm
kg / hkg / h
mm
kg

230
3000
PE / PP
Other materials on request
3 oder 4
PE: 0.6 – 1.3 | PP: 0.5 – 1.2
PE: 1.0 – 2.0 | PP: 0.9 – 2.0
450 × 98 × 260
5.8

Voltage
Power

V~
W

Material
Welding rod
Output 3 mm
Output 4 mm
Size (L × W × H)
WeightConformity markProtection class I

mm
kg / hkg / h
mm
kg

230
3000
PVC-U, PE, PP
Other materials on request
3 oder 4
PVC-U: 0.9 – 1.7 | PE: 0.6 – 1.3
PVC-U: 1.5 – 2.7 | PE: 1.0 – 2.3
450 × 98 × 260
5.8

Article No.:
127.215 WELDPLAST S2, 230 V / 3000 W, EU plug
140.707 WELDPLAST S2, 230 V / 3000 W, CN plug
146.341 WELDPLAST S2, 200 V / 2400 W, w/o plug
156.131 WELDPLAST S2, 230 V / 3000 W, CEE 3/16
176.839 WELDPLAST S2, 230 V / 3000 W, CH plug

Article No.:
135.724 WELDPLAST S2 PVC, 230 V / 3000 W, EU plug
140.708 WELDPLAST S2 PVC, 230 V / 3000 W, CN plug
146.342 WELDPLAST S2 PVC, 200 V / 2400 W, w/o plug
156.804 WELDPLAST S2 PVC, 230 V / 3000 W, CEE 3/16
169.929 WELDPLAST S2 PVC, 220 V / 2750 W, KR plug

Included with purchase: storage case

Included with purchase: storage case22

leister.com

The handy WELDPLAST S2 in action

Even inside radiuses are easy to weld

Accessories WELDPLAST S2

Accessories WELDPLAST S2 PVC

145.945145.946

Welding shoe complete
45 × 30 × 54 mm blank welding shoe
74 × 50 × 58 mm blank welding shoe

146.239146.240

Welding shoe complete
54 × 40 × 52 mm blank welding shoe
74 × 50 × 58 mm blank welding shoe

145.896145.947145.89725 mm overlap
30 mm overlap
35 mm overlap

146.241146.706
146.24225 mm overlap
30mm overlap
35 mm overlap

145.912145.915145.907145.903145.909145.9165 / 6 mm V-seam
8 /10 mm V-seam
12 mm V-seam
15 mm V-seam
20 mm V-seam
25 mm V-seam

146.248146.249
146.243
146.2445 / 6 mm V-seam
8 / 10 mm V-seam
12 mm V-seam
15 mm V-seam

145.943
145.944145.815145.812145.940145.8165 / 6 mm fillet weld (a = 4.2 mm*)
8 / 10 mm fillet weld (a = 7 mm*)
12 mm fillet weld (a = 8.5 mm*)
15 mm fillet weld (a = 10 mm*)
20 mm fillet weld (a = 14 mm*)
25 mm fillet weld (a = 17.5 mm*)146.235
146.236146.525
146.231

5 /6 mm fillet weld seam (a = 4.2 mm*)
8 /10 mm fillet weld seam (a = 7 mm*)
12 mm fillet weld seam (a = 8.5 mm*)
15 mm fillet weld seam (a = 10 mm*)

146.643
146.645
146.649
146.651

Corner outside seam 8 mm
Corner outside seam 10 mm
Corner outside seam 12 mm
Corner outside seam 15 mm

146.642146.644146.646146.652

Corner outside seam 8 mm
Corner outside seam 10 mm
Corner outside seam 12 mm
Corner outside seam 15 mm

146.230
146.218

Corner seam
Corner seam

145.811145.488

Corner seam
Corner seam

14 mm
20 mm

14 mm
20 mm

* a = Welding seam thickness
133.850

Top hot-air guide* a = Welding seam thickness
139.460

45° angled adapter

139.461

90° angled adapter

154.002

Insulation sleeve WELDPLAST S2

161.119

Support clamp WELDPLAST S2With the WELDPLAST S2
perfect welds are possible

The 45° angled adapter
for the WELDPLAST S2
facilitates welding in difficult
positions. (accessory)
General accessories

30

23

WELDPLAST S1: Outstandingly
compact.
With the new WELDPLAST S1 compact extruder, you
can achieve perfect seam quality.
Nozzle welding made easy with the WELDPLAST S1Digitally regulated extrusion welder

WELDPLAST S1

Accessories WELDPLAST S1• Functional, ergonomic design with comfort grip areas• Extremely high output power of 0.8 kg/h (HD-PE)• Integrated LED lighting and hanging point• Can work with all typical kinds of plastic• Multifunction panel with predefined welding parameters• BL blower, adjustable air volume

149.430

Welding shoe complete
Blank

149.402148.627
149.401

Fillet weld 5 / 6Fillet weld 8 / 10
Fillet weld 12149.388
149.383
149.385

V-seam 3 / 4
V-seam 5 / 6
V-seam 8 / 10

149.364

CornerFor additional welding shoes, see
Weldplast S2 PVC

152.720

Nozzle extension

153.143

Angled adapter 45°

153.236

Angled adapter 90°

149.600

Top hot-air guide149.456

Hot-air tube, position 6h

149.467

Hot-air tube, position 9h/3h(standard)

154.107

Air nozzle set

154.002

Insulation sleeve WELDPLAST S1/S2

Technical Data
Voltage
Power

V~
W

Material
Welding rod
OutputSize (L × W × H)

mm
kg / hmm

Integrated welding profiles
WeightConformity markProtection class I

kg

230 / 120 / 100
1600 / 1800 / 1500
HD-PE, LD-PE, PP, PVC-U
PVC-C, PVDF, ECTFE, PA
3–4
0.2 – 0.8 (PVC up to 1.15 kg /h)
435 × 91 × 264
HD-PE, PP, PVC-U,PVC-C, PVDF
10 free profile storage spaces
4.7

Article No.:148.396 WELDPLAST S1, 230 V / 1600 W, 3 – 4 mm, EU plug
148.395 WELDPLAST S1, 120 V / 1800 W, 3 – 4 mm, w/o plug
148.394 WELDPLAST S1, 100 V / 1500 W, 3 – 4 mm, EU plug
156.140 WELDPLAST S1, 230 V / 1600 W, UK plug
169.928 WELDPLAST S1, 220 V / 1500 W, KR plug
177.272 WELDPLAST S1, 230 V / 1600 W, CEE 3/16

14 mm

14 mm

14 mm (standard)

Included with purchase: WELDPLAST S1, 4 pre-heating nozzles
14 mm, welding shoe K10, storage case
General accessories

24

30

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FUSION 3: Long and slim.

FUSION 3C: Short and handy.

With its long and narrow shape, the FUSION 3 enables

The somewhat shorter FUSION 3C provides an

comfortable work, even on the floor.

astounding output volume of up to 3.6 kilograms perhour.

Air heated extrusion welder

Air heated extrusion welder

FUSION 3

FUSION 3C• High-quality welding performance• Compact and handy• Motor start-up protection prevents cold start• Simple operation• Dual-sided twist-free wire intake• 360° rotating welding shoe

• High-quality welding performance• Compact and handy• Motor start-up protection prevents cold start• Simple operation• Dual-sided, twist-free wire intake• 360° rotating welding shoe
Technical Data

Technical Data
Welding rod
Output PE
Output PP
Voltage
Power
Material
Size (L × W × H)
WeightConformity markProtection class IImm
kg / hkg / hV~
W
mm
kg

Version 3 – 4
Version 4 – 5
3
4
4
5
2.0 - 2.5 2.7 – 3.6 2.1 – 2.6 2.7 – 3.6
1.8 – 2.3 2.5 – 3.4 1.8 – 2.4 2.5 – 3.4
230
3500
PE / PP
670 × 90 × 180
7.2

Article No.:118.300 FUSION 3, 230 V / 3500 W,
144.615 FUSION 3, 230 V / 3500 W,
140.020 FUSION 3, 230 V / 3500 W,
143.835 FUSION 3, 230 V / 3500 W,

3 – 4 mm, EU plug4 – 5 mm, EU plug3 – 4 mm, CEE 3/16
4 – 5 mm, CEE 3/16

Included with purchase: FUSION 3, storage case

Welding rod
Output PE
Output PP
Voltage
Power
Material
Size (L × W × H)
WeightConformity markProtection class IImm
kg / hkg / hV~
W
mm
kg

Version 3 – 4
Version 4 – 5
3
4
4
5
2.0 - 2.5 2.7 – 3.6 2.1 – 2.6 2.7 – 3.6
1.8 – 2.3 2.5 – 3.4 1.8 – 2.4 2.5 – 3.4
2303200
PE / PP588 x 98 x 225
6.9Article No.:
123.866 FUSION 3C, 230 V / 3200 W, 3 – 4 mm, EU plug
144.826 FUSION 3C, 230 V / 3200 W, 4 – 5 mm, EU plug
173.794 FUSION 3C, 230 V / 3200 W, 3 – 4 mm, without shoe, industrial plug
140.028 FUSION 3C, 230 V / 3200 W, 3 – 4 mm, CEE 3/16
143.837 FUSION 3C, 230 V / 3200 W, 4 – 5 mm, CEE 3/16
166.365 FUSION 3C, 220 V / 3000 W, 3 – 4 mm, KR plug
176.838 FUSION 3C, 230 V / 3200 W, 3 – 4 mm, CH plug
Included with purchase: FUSION 3C, storage case25

Perfectly stored in the case

FUSION 3C during the welding of a fillet weld

Accessories FUSION 3 / 3C
145.945145.946

Welding shoe complete
45 × 30 × 54 mm blank welding shoe
74 × 50 × 58 mm blank welding shoe

145.896145.947145.89725 mm overlap
30 mm overlap
35 mm overlap

145.912145.915145.907145.903145.909145.9165 / 6 V-seam
8 / 10 mm V-seam
12 mm V-seam
15 mm V-seam
20 mm V-seam
25 mm V-seam

145.943
145.944145.815145.812145.940145.8165 / 6 mm fillet weld (a = 4.2 mm*)
8 /10 mm fillet weld (a = 7 mm*)
12 mm fillet weld (a = 8.5 mm*)
15 mm fillet weld (a = 10 mm*)
20 mm fillet weld (a = 14 mm*)
25 mm fillet weld (a = 17.5 mm*)

146.643
146.645
146.649
146.651

Corner outside seam 8 mm
Corner outside seam 10 mm
Corner outside seam 12 mm
Corner outside seam 15 mm

145.811145.488

Corner seam
Corner seam

The insulation sleeve protects the machine from heat loss,
as well as protects the operator from direct contact with theextruder.

14 mm
20 mm

* a = Welding seam thickness
148.81745° angled adapter

148.81690° angled adapter

149.421

Insulation sleeve FUSION 3

149.420

Insulation sleeve FUSION 3C* a = Welding seam thickness

General accessories

26

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leister.com

FUSION 2:
The small powerhouse.
The FUSION 2 convinces with its ergonomic design.
The simple operation and first-class welding quality
have helped it to become the breakthrough product.

In operation during container construction in China

Air heated extrusion welder

FUSION 2

Accessories FUSION 2• At 450 mm, it is the shortest in its performance class!
• Motor start-up protection prevents cold start• Simple operation• Dual-sided, twist-free wire intake• 360° rotating welding shoe
• Integrated electronics for stepless adjustment of thepreheating temperature and output quantity

145.945145.946

Welding shoe complete
45 × 30 × 54 mm blank welding shoe
74 × 50 × 58 mm blank welding shoe

145.896145.947145.89725 mm overlap
30 mm overlap
35 mm overlap

145.912145.915145.907145.9035 / 6 V-seam
8 / 10 mm V-seam
12 mm V-seam
15 mm V-seam

145.943
145.944145.815145.8125 / 6 mm fillet weld (a = 4.2 mm*)
8 / 10 mm fillet weld (a = 7 mm*)
12 mm fillet weld (a = 8.5 mm*)
15 mm fillet weld (a = 10 mm*)

146.643
146.645
146.649
146.651

Corner outside seam 8 mm
Corner outside seam 10 mm
Corner outside seam 12 mm
Corner outside seam 15 mm

145.811145.488

Corner seam
Corner seam

14 mm
20 mm

* a = Welding seam thickness
147.602

45° angled adapter

147.601

90° angled adapter

166.524

Insulation sleeve FUSION 2

Technical Data
Voltage
Power
Material
Air temperature
Plastification temperature
Welding rod
Output PE
Size (L × W × H)
WeightConformity markProtection class II

V~
W
°C
°C
mm
kg / hmmkg

230 / 1202800
PE / PP
up to 340
up to 300
4
1.3 – 1.8
450 × 98 × 225
5.9

Article No.:119.200 FUSION 2, 230 V / 2800 W, EU plug
150.102 FUSION 2, 120 V / 2800 W, CEE 3/16
139.197 FUSION 2, 230 V / 2800 W, CEE 3/16
166.366 FUSION 2, 220 V / 2600 W, KR plug
176.837 FUSION 2, 230 V / 2800 W, CH plug
Included with purchase: FUSION 2, blank welding shoe, storage case

General accessories

30

27

Automated, modular, customized – WELDPLAST 200-i / 610-i
LEISTER offers you two modules for automated extrusion welding and 3D printing. WELDPLAST 200-i and 610-i
are set up to allow both simple and fully automated expansion and can be mounted on robots or integrated intomachines. This modular design allows you to bring your projects to fruition without making any compromises.

Built-in extruder module

WELDPLAST 200-i / 610-i
Customized
Depending on requirements – choose
between extruder modules which canbe extended to meet specific needs

The drive and communication components of both
extruder modules, which can be freely chosen by theuser, can be tailored fully to meet individual needs.
By incorporating additional sensors, the process canbe controlled and monitored as required.

Modular
Select an extruder module and simply
add the relevant hot air and communication components

Electrical and mechanical adaptation points are
already set up so that the modules for various
processes such as those requiring preheated air canbe integrated.

Controlled
Monitor and control all parameterssuch as temperatures and emissions

State-of-the-art industrial interfaces or similarinterfaces can be installed to aid communication.

28

leister.com

WELDPLAST 200-i  /  610-i – robotic extrusion welding and 3D
printing designed for automated continuous operation

Built-in extruder module

WELDPLAST 200-i

WELDPLAST 200-i / 610-i

163.322WELDPLAST 200-i, 230V

163.575

Connection kit 200-i/610-i

164.414

Air heater kit 200-i

139.869
140.455
140.459

LHS 21S CLASSIC, 230V/1kW
LHS 21S PREMIUM, 230V/1kW
LHS 21S SYSTEM, 230V/1kW• Automated: Designed for automated continuous operation• Up to date: All components are compliant with current
industry standards

WELDPLAST 610-i
Technical data

WELDPLAST 200-i

WELDPLAST 610-i

Voltage

V~

230

230

Heating power

W

600

1600

Welding additive

mm

3–4

4–5

Material output ø 3 mm

kg / h0.1–1.4

Material output ø 4 mm

kg/h

0.1–2.0

Material output ø 5 mm

kg/h

Welding materials

Dimensions full disassembly(L × W × H)

mm

172.580

WELDPLAST 610-i, 230V

163.575

Connection kit 200-i/610-i

164.415

Air heater kit 610-i

139.872140.457
140.461

LHS 21L CLASSIC, 230V/3.3kW
LHS 21L PREMIUM, 230V/3.3kW
LHS 21L SYSTEM, 230V/3.3kW

0.1–4.0
0.1–8.4

HDPE, LDPE, LLDPE,
PVC-U, ABS, PVC-C,
PU, PC, PS

HDPE, LDPE,
LLDPE, PP

660 × 191 × 220

876 × 191 × 210

Protection class I
Included with purchase: Extrusion module, CAD data, parts list, operating manual,suggested electrical diagram

29

Check the weld seam dimension easily

General accessories hand extruder
131.451

Tool rest
WELDPLAST S2 / S2 PVC / FUSION 2FUSION 3C

148.923

WELDPLAST S1

160.454

WELDPLAST S4 / WELDPLAST S6 /FUSION 3

136.231Pre-heat reflector
WELDPLAST S1/S2 / S2 PVC / S4 / S6
FUSION 2 / 3 / 3C

134.361

Air filter WELDPLAST S1 / S2 / S2
PVC (included with purchase)

143.776

Textile dust filter WELDPLAST S1 / S2
PVC (in combination with Air filter)(not included with purchase)

135.082

Air filter FUSION 2 / 3C

155.829

Air filter WELDPLAST S2

153.009

Corner Press Tool

113.268
123.561149.265
149.529
149.530151.026

Heating element
230 V / 2200 W, WELDPLAST S4 /S2 / S2 PVC
230 V / 1100 + 1100 W, FUSION 3
230 V / 1750 W, FUSION 2 / 3C
230 V / 1000 W, WELDPLAST S1
120 V / 1100 W, WELDPLAST S1
100 V / 1050 W, WELDPLAST S1
120 V / 1750 W, FUSION 2

144.095

Welding rod de-reeler

109.984

169.851
123.173119.540

Storage case(included with purchase)
WELDPLAST 600
WELDPLAST S4 / FUSION 3
WELDPLAST S2 / S2 PVC / S1 /FUSION 2/ 3C

PLASTFIX lends the weld seam the necessary holding pressure.

30

152.676

Welding Gauge

154.259

Scraper blade

154.026

Contour scraper

136.961

Temperature measuring device G1200

136.962

Insertion probe type K,
3 × 100 mm

136.963

Insertion probe type K,
1.5 × 100 mm

142.570

Tool case 229 × 199 × 55
suitable for article 136.961

leister.com

31

TRIAC ST: Design meets experience
The new TRIAC ST from Leister is primarily used for welding and plastic fabrication. During its development, a deliberate choice was made to do without extra technical features. Instead it is distinguished by comfort, being reliableversatile, robust and user friendly, like its predecessor the TRIAC S. A prominent feature here is the two-component
handle, which is not only attractive, but also gives the user perfect grip. The low weight of less than 1 kg/2.18 lbs
ensures a perfect weight balance.

Product advantage
Ergonomic handling:
The 2-component handle and perfecttool balance ensure ideal grip andoptimum working even under the
toughest conditions.

1

Perfect weight:
Weighing less than 1 kg, the
TRIAC ST is even lighter than its
predecessor.
2

Always keeps a cool head:
There is an actively cooled protective
tube for greater work safety.

3

Welding power:
Thanks to the optimized,
highly robust motor, TRIAC ST
guarantees high welding power.

1

3
4
5

2

4

Reliability:
A new temperature manager and ahigh dust resistance provide the heating elements with a long service life.

5

Swiss thoroughness:
The air filters, located on either side,can easily be removed and cleaned.
This ensures optimum air flow andmaximum power output.
Optimum protection:
The filters offer active protection
against moisture and dust.

32

leister.com

TRIAC AT: Robust and intelligent.
The TRIAC AT is an intelligent hot-air hand tool for welding and shrinking plastics that is suitable for on-site use. It
is designed for the needs of even the most demanding professional. Every tool undergoes stringent quality checks
prior to leaving the factory in Switzerland. This high-quality hot-air hand tool is equipped for all situations. Its universal areas of application are virtually unlimited. The TRIAC AT will continue to prove its merit in any weather condition
and is just as effective outside as it is indoors – all during continuous operation.
Hot-air hand toolHot-air hand tool

TRIAC ST

TRIAC AT

version forscrew-on nozzle• Suitable for the work site
• Functional design: two-component handle grip andoptimum center of gravity ensure good ergonomics• Quick clean air filters• Automatic carbon stop and heating element protection
provide auto­matic protective measures• Suitable for the work site
• Closed loop controlled temperature• Open loop controlled air volume• Intelligent «e-Drive» operating unit
• Ergonomic handling• Modern design
Technical data

Technical data
VoltageFrequency
Power
Temperature
Air volume (20°C)
Dynamic pressure

version forscrew-on nozzle

V~
Hz
W
°C
l/min
Pa
mm
dB(A)
mm
kg

120 / 230
50 / 60
1600 / 1600
40 – 700240 (500 at max. temp)
3000
31.5
67
338 × 90, handle 56<1 (without power cord)Nozzle holder
Emission
Size (L × )WeightConformity mark
Approval markProtection class II
Article No.:141.308 TRIAC ST, 120 V / 1600 W for push-fit nozzles with UK-plug
141.309 TRIAC ST, 230 V / 1600 W for push-fit nozzles with UK-plug
141.311 TRIAC ST, 230 V / 1600 W for push-fit nozzles with CH plug141.227 TRIAC ST, 230 V / 1600 W for push-fit nozzles with Euro plug
144.013 TRIAC ST, 230 V / 1600 W for screw-on nozzles with Euro plug
153.891 TRIAC ST, 220 V / 1600 W for push-fit nozzles with KR-plug

VoltageFrequency
Power
Temperature
Air volume (20°C)
Dynamic pressure

V~
Hz
W
°C
l/min
Pa
mm
dB(A)
mm
kg

120 / 230
50 / 60
1600 / 1600
40 – 620
160 – 240 (500 at max. temp)
1600 – 3000
31.5
67
338 × 90, handle 56
1 (without power cord)Nozzle holder
Emission
Size (L × )WeightConformity mark
Approval markProtection class II
Article No.:141.319 TRIAC AT, 120 V / 1600 W, with UK-plug
141.320 TRIAC AT, 230 V / 1600 W, with UK-plug
141.314 TRIAC AT, 230 V / 1600 W, with Euro-plug
141.322 TRIAC AT, 230 V / 1600 W, with CH-plug
142.737 TRIAC AT, 230 V / 1600 W for screw-on nozzles with Euro plug
148.005 TRIAC AT, 220 V / 1600 W, for push-fit nozzles with KR-plug

33

Quick welding

Draw welding with combination nozzle

Accessories TRIAC ST / TRIAC AT
100.303

5 mm, tubular nozzle, push-fit

105.575

5 × 100 mm, tubular nozzle,
push-fit
5 × 150 mm, extension nozzle,
push-fit

106.982105.576

106.996

tubular nozzle

105.622105.432

D

105.433

107.139106.988

Tacking nozzle, screw-on

126.552

4 mm drawing nozzle, screw-on
for fluor plastics

113.666

3 mm drawing nozzle
with tacking tip, screw-on
4 mm drawing nozzle
with tacking tip, screw-on
3 mm drawing nozzle
without tacking tip, screw-on
4 mm drawing nozzle
without tacking tip, screw-on

5 mm, 90° curved

Tacking nozzle,
push-fit on 5 mm tubular nozzle

113.399D

105.431113.874

3 mm speed weld nozzle,
with small air-slide,push-fit on 5 mm tubular nozzle
4 mm speed weld nozzle,
with small air-slide,push-fit on 5 mm tubular nozzle
5 mm speed weld nozzle,
with small air-slide,push-fit on 5 mm tubular nozzle

113.876

106.987

Drawing nozzle triangular-shaped
With tacking tip, screw-on 5.7 mm,
profile A
Without tacking tip, screw-on
5.7 mm, profile A
Without tacking tip, screw-on
7 mm, profile B
Without tacking tip 7 × 5.5 mm

143.833

Nozzle adapter for screw-on nozzles

143.332

Protection tube for screw-on nozzles(for TRIAC ST until april 2017)
Protection tube for screw-on nozzles(for TRIAC ST from mai 2017)
Protection tube for screw-on nozzles(for TRIAC AT)

113.670A

113.877B

106.986

C

4.5 × 12 mm speed weld nozzle
for fillet weld, push-fit on 5 mm
tubular nozzle
8 mm speed weld nozzle for tapewelding, push-fit on 5 mm tubular
nozzleA

Speed weld nozzle, push-fit on
5 mm tubular nozzle

144.134

5.7 mm, profie A
7 mm, profile B

141.375

107.137

156.092B

106.992
106.993B

106.989106.990106.991
156.470

5 mm, tubular nozzle, screw-on

3 mm
4 mm
5 mm

142.717

Connection adapter M14 fornozzle with plug

21 mm

Heating element for
TRIAC ST / TRIAC AT, 230 V / 1550 W
TRIAC ST / TRIAC AT, 120 V / 1550 W

Speed weld nozzle bend 5 mm,
push-fit on 5 mm tubular nozzle
142.718

34

leister.com

HOT JET S: Small and powerful.
As the most compact hot-air hand tool from Leister, the
HOT JET S’ low weight of 600 grams (including cordand slim handle) ensures high-powered, fatigue-freewelding.

Popular for repair work: HOT JET S

Hot-air hand tool

Accessories HOT JET SHOT JET S

107.1445 mm tubular nozzle, push-fit

106.996

Tacking nozzle,
push-fit on 5 mm tubular nozzle

106.989­ 3 mm speed welding nozzle,
push-fit on 5 mm tubular nozzle

D• The smallest Leister hot-air hand tool
• Stepless, electronically controlled temperature• Stepless, electronically controlled air flow
• Low noise• Flexible, integrated tool standA

106.990

4 mm speed welding nozzle,
push-fit on 5 mm tubular nozzle

106.991

5 mm speed welding nozzle,
push-fit on 5 mm tubular nozzle

156.470

Speed weld nozzle bend 5 mm,
push-fit on 5 mm tubular nozzle

106.992

5.7 mm, A profilee speed welding
nozzle, push-fit

106.993

7 mm, B profilee speed welding
nozzle, push-fit

107.1378 mm speed welding nozzle for tapewelding,
push-fit on 5 mm tubular nozzle

143.831

Nozzle adapter for screw-on nozzles

100.818

230 V / 435 W heating element

B

Technical data
VoltageFrequency
Power
Temperature
Air volume (20°C)
Pressure static
Nozzle holder
Emission
Size (L × )WeightConformity mark
Approval markProtection class II

V~
Hz
W
°C
l/min
Pa
mm
dB(A)
mm
kg

120 / 230
50 / 60
460 / 460
40 – 600
40 – 110 (200 at max. temp)
230 – 1600
21.3
59
235 × 70, handle 40
0.4 (without power cord)

C

Article No.:
100.648 HOT JET S, 230 V / 460 W, with Euro plug
100.862 HOT JET S, 120 V / 460 W, without plug
100.854 HOT JET S, 230 V / 460 W, with AUS plug
140.030 HOT JET S, 220V/ 460W for push-fit nozzles with KR-plug

35

The PENWELD A external-air welder is suitable for
precise plastic welding in apparatus and tank construction. The work light integrated in the handle keeps thewelding zone under control even in dark sections.
PENWELD A illuminated plastic welding

External air hand tool

PENWELD A

Integrated LED work light• Rotating connection for flexibility when working• Specific hose characteristics for better usability• Service friendly junction box• Choice between application-optimized variations• Constant welding thanks to precise temperature
Technical data
VoltageFrequency
Power
Temperature

V~
Hz
W
°C

Temperature setting stepless
Display
Outdoor use
Nozzle connection ( )Size (L × )Conformity markProtection class II

mm

120 V; 230
50 / 60
1000 – 1550
60 – 600
Yes
Yes
Yes
31.5 mm; M14
254.0 – 282.0 × 54, handle

37

Intuitively operable

Article No.:173.367 PENWELD 305-A, 230 V / 1000 W, 3 m, M14, EU plug
173.368 PENWELD 305-A, 120 V / 1000 W, 3 m, M14, US plug
173.369 PENWELD 305-A, 230 V / 1000 W, 3 m, M14, CH plug
173.370 PENWELD 305-A, 230 V / 1000 W, 8 m, M14, EU plug
173.371 PENWELD 305-A, 230 V / 1000 W, 8 m, M14, CH plug
173.376 PENWELD 500-A, 230 V / 1550 W, 3 m, EU plug
173.377 PENWELD 500-A, 120 V / 1550 W, 3 m, US plug
175.598 PENWELD 505-A, 230 V / 1550 W, 8 m, M14, EU plug
177.344 PENWELD 500-A, 230 V / 1550 W, 3 m, CN plug
177.346 PENWELD 505-A, 230 V / 1550 W, 8 m, M14, CN plug

Logically designed

36leister.com

The handy, robust PENWELD S external-air welder isintentionally simple in design to enable intuitive operation and withstand heavy loads. Different device variants
cover individual needs.

External air hand tool

PENWELD S

Accessories PENWELD S
105.622106.988

Tacking nozzle, screw-on

113.666

3 mm round drawing nozzle
with tacking tip, screw-on
4 mm round drawing nozzle,
with tacking tip, screw-on

113.399

D• Robust and simple construction• Short and light for longer working periods• Recessed rotary knob against accidental adjustment• High quality, sturdy hose

113.876113.874

113.670A
B

5 mm tubular nozzle, 15° screw-on

113.877
106.986106.987
126.552

3 mm round drawing nozzle
without tacking tip, screw-on
4 mm round drawing nozzle,
without tacking tip, screw-on
Triangular drawing nozzle
with tacking tip, screw-on,
5.7 mm, profile A
without tacking tip, screw-on
5.7 mm, profile A
without tacking tip, screw-on
7 mm, profile B
without tacking tip, screw-on
7 × 5.5 mm
4 mm drawing nozzle, screw-on
for fluor plastics

Technical data
VoltageFrequency
Power
Temperature

V~
Hz
W
°C

Temperature setting stepless
Display
Outdoor use
Nozzle connection ( )Size (L × )Conformity markProtection class II

mm

120 V; 230
50 / 60
1000 – 1550
60 – 600
Yes
No
Yes
31.5 mm; M14
254.0 – 275.0 × 54, handle

Article No.:173.372 PENWELD 305-S, 230 V / 1000 W, 3 m, M14, EU plug
173.373 PENWELD 305-S, 230 V / 1000 W, 3 m, M14, CH plug
173.374 PENWELD 305-S, 120 V / 1000 W, 3 m, M14, US plug
173.375 PENWELD 305-S, 230 V / 1000 W, 8 m, M14, EU plug
173.378 PENWELD 500-S, 230 V / 1550 W, 3 m, EU plug
173.379 PENWELD 500-S, 120 V / 1550 W, 3 m, US plug
177.345 PENWELD 500-S, 230 V / 1550 W, 3 m, CN plug

127.726
127.727

Angular adapter for screw-on nozzles,
screw-on30°
45°

170.881

Tool stand PENWELD

172.330
172.333

One-touch fitting G3/8"
One-touch fitting G1/2"

172.331

Coupler plug

37

14 mm

37

AIRSTREAM 100:
Mobile with strong air supply.
The mobile AIRSTREAM 100 blower supplies the rightamount of air for Leister’s DIODE, PENWELD and
LABOR heat guns. A suitable adapter is included in thescope of delivery to easily connect the heat guns.

Air compressor for mobile use

BlowerAIRSTREAM 100

Accessories AIRSTREAM 100
172.330

One-touch fitting G3/8"

172.331

Coupler plug

14 mm

• Mobile• Generates clean, filtered air• Low maintenance and long service life
• Separate device switch to handle tool with ease
• Safely stored thanks to the tool rack

Technical Data
VoltagePower
Frequency
Air volume
Emission
Size (L × B × H)
WeightConformity markProtection class I

V~
W
Hz
L/min
dB(A)
mm
kg

230
72
50
80 (Total)< 48
440 × 228 × 227
7.2

Article-No.:
171.350 AIRSTREAM 100, 230 V / 72 W, CH-plug
171.351 AIRSTREAM 100, 230 V / 72 W, EU-plug

38

leister.com

AIRSTREAM ST: The quiet and efficient air supply unit.
With its plug & play functionality, all you need to do isplug in the AIRSTREAM ST for a constant supply of clean, dry air – for welding constructions with the highest
AIRSTREAM ST, the quiet air supply unit

cleanliness requirements.

BlowerAIRSTREAM ST

Accessories AIRSTREAM ST• Quiet operating mode
• Cool-Down-Mode• Low energy consumption• Two hand tools can be connected• Compatible mit PENWELD, DIODE and LABOR• Flow meter• Brushless technology

159.535

Roller set

159.481

Air hose connection set

172.331

Coupler plug ø14mm

172.333

One-touch fitting G1/2»

Technical Data
VoltagePower
Frequency
Air volume
Emission
Size (L × B × H)
WeightConformity markProtection class I

V~
W
Hz
L/min
dB(A)
mm
kg

230
215
50
200 (Total)< 48
600 × 250 × 362
24

Article-No.:
158.822 AIRSTREAM ST, 230 V / 215 W, EU-plug
161.052 AIRSTREAM ST, 230 V / 215 W, CH-plug

Easy parallel operation.

39

ROBUST: The powerhouse.
Versatile and operable at high ambient temperatures of
up to 60 °C. Despite its small size, the ROBUST is a real
powerhouse. This blower can simultaneously supply air
for up to three hot-air hand tools.

ROBUST blower, serving as the external air supply

BlowerAccessories ROBUSTROBUST

107.354

Stainless steel filter,
push-fit on air intake

107.281

38 mm hose connection adapter,3 output each 14 mm

113.859

14 mm air hose

101.03114 mm hose clip for air hose• High-performance, compact design• Sound-suppression• Can be integrated at any position• Can be used as an external air supply up to
max. 3 DIODE S or max. 3 LABOR S(with 107.281 hose adapter)
Technische Daten
FrequencyPower
Air volume (20 °C )Static pressure
Max. ambient temperature
Max. air inlet temperature
Noise emission level
Protection (IEC  60529)
Outside diameter air inlet
Outside diameter air outlet
WeightConformity markProtection class l

Hz
W
l/min
kPa
°C
°C
dB(A)
mm
mm
kg

50
250
1200
8.0
60
60
62
IP 54
38
38
8.0

60
250
1300
10.5
60
60
62
IP 54
38
38
8.0

Artikel-Nr.:Voltage V~
Without cord
3 m cord / Euro plug

40

50 Hz
1 × 120 1 × 230 3 × 230 / 400
60 Hz
3 × 440 – 480
Article No.: 103.434
103.429
Article No.:103.432

leister.com

External air hand tool

Hand tool and blower

DIODE S

DIODE S with MINOR• Operated with MINOR or ROBUST blower or withcompressed air• Cooled heating element tube
• Suitable for field applications when used in combination witha MINOR blower

MINOR blower and DIODE S• Ideal for assembly work

Technical data

Technical data
VoltagePower
Temperature
Size (L × )

V~
W
°C
mm

Weightkg

120 / 230
1600
20 – 600
265 × 57, handle 40
1.15 kg(with 3 m cord / 3 m air hose)

VoltagePower
Temperature
Size (L × )

V~
W
°C
mm

Weightkg

120 / 230
1600
20 – 600
265 × 57, handle 40
2.5 kg(with 3 m cord / 1.5 m air hose)

Conformity markProtection class II

Conformity markProtection class II

Article No.:101.279 DIODE S, 230 V / 2000 W, EU plug
101.280 DIODE S, 230 V / 2000 W, M14, EU plug
101.281 DIODE S, 230 V / 1600 W, EU plug
101.282 DIODE S, 230 V / 1600 W, M14, EU plug
101.291 DIODE S, 120 V / 1600 W, US plug
101.292 DIODE S, 120 V / 1600 W, M14, US plug
101.293 DIODE S, 120 V / 1600 W, CEE 3/16
177.270 DIODE S, 230 V / 1600 W, M14, CN plug

Article No.:
101.441 DIODE S / MINOR, 230 V / 1700 W, 1.5 m, EU plug
101.447 DIODE S / MINOR, 120 V / 1700 W, US plug
101.449 DIODE S / MINOR, 100 V / 1500 W, JP plug
108.870 DIODE S / MINOR, 230 V / 1700 W, 1.5 m, M14, EU plug136.241 DIODE S / MINOR, 230 V / 1700 W, CN plug
Additional versions available upon request

Additional versions available upon request

41

MINOR: The mobile air supplier.
Don’t be deceived by the MINOR’s small size and low
weight. This blower delivers sufficient air to enable
quality work with the DIODE S or LABOR S.
The MINOR blower as an air suppy for the DIODE S

Accessories DIODE S

BlowerWith push-fit nozzle

MINOR
100.303106.992
106.993106.989106.990106.991
156.470A
B

5 mm tubular nozzle, for versions
with nozzles, push-fit

Speed welding nozzle,
push-fit on 5 mm tubular nozzle
5.7 mm, profilee A
7 mm, profilee B
3 mm
4 mm
5 mm
5 mm bent

106.996

Tacking nozzle,
push-fit on 5 mm tubular nozzle

143.833

Nozzle adapter for screw-on nozzles

100.689
100.702

Heating element DIODE S, 230 V / 1550 W
Heating element DIODE S, 120 V / 1600 W

105.6225 mm tubular nozzle, screw-on• Lightweight and compact• Powerful• Serves as a mobile air supply for the DIODE S and LABOR S• Suitable for work on construction sites

With screw-on nozzle

106.988

Tacking nozzle, screw-on

113.666

3 mm round drawing nozzle
with tacking tip, screw-on
4 mm round drawing nozzle,
with tacking tip, screw-on
3 mm round drawing nozzle
without tacking tip, screw-on
4 mm round drawing nozzle,
without tacking tip, screw-on

113.399113.876
D

113.874
113.670

Triangular drawing nozzle, with tacking
tip, screw-on, 5.7 mm

113.877

Without tacking tip, screw-on 5.7 mm,
profile A
Without tacking tip, screw-on 7 mm,
profile B
7 × 5.5 mm

AB

106.986106.987
126.552

141.37542

4 mm drawing nozzle, screw-on,
for fluor plastics

Technical data
VoltagePower
Air volume (20°C)
Pressure static
Air outlet (external)Size (L × )WeightConformity markProtection class II

V~
W
l/min
Pa
mm
mm
kg

230
100
400
4000 (40 mbar)
14.5
250 × 95, handle 64
1.15 (with 3 m cord)

Article No.:108.747 MINOR, 230 V / 100 W, with Euro plug
109.988 MINOR, 120V / 100W, with UK plug

Additional versions available upon request

Connection adapter M14 for21.3 mm nozzle with plug

leister.com

LABOR S: Small and handy.
Developed for laboratory use but also eminently suitable for small welding tasks where access is difficult.
LABOR S, used in combination with MINOR as anexternal air supply

External Air Hand tool

LABOR S

Accessories LABOR S

AB• Temperature adjustment via rotary knob
• Very small and handy device• Ideal for draw welding and tacking• Air supply with ROBUST blower, MINOR (p. 27) or withcompressed air• Ideal for mobile use when coupled with MINOR blower

Technical data

107.1445 mm tubular nozzle, push-fit

106.992
106.993106.989106.990106.991
156.470

Speed weld nozzle, push-fit on
5 mm tubular nozzle
5.7 mm, profilee A
7 mm, profilee B
3 mm
4 mm
5 mm
5mm bent

106.996

Tacking nozzle,
push-fit on 5 mm tubular nozzle

143.831

Nozzle adapter for screw-on nozzles

107.1462 mm soldering nozzle

107.151

4 mm soldering nozzle

107.148

3 × 1.5 mm soldering nozzle, oval

105.6225 mm tubular nozzle, screw-on

106.988

Tacking nozzle, screw-on

113.666

3 mm round drawing nozzle
with tacking tip, screw-on
4 mm round drawing nozzle,
with tacking tip, screw-on
3 mm round drawing nozzle
without tacking tip, screw-on
4 mm round drawing nozzle,
without tacking tip, screw-on

113.399

VoltagePower
Temperature
Size (L × )

V~
W
°C
mm

Weightkg

230
800 / 900
20 – 600
180, handle 32
0.15 (without air hose andwithout cordl)

Conformity mark
Approval markProtection class II

113.876
D

113.874A

113.670B

113.877
106.986106.987

Article No.:101.716 LABOR S with connection box, 230 V / 800 W
with Euro plug, air hose 3 m
101.754 LABOR with MINOR blower, 230 V / 900 W
with Euro plug, air hose 1.5 m
Additional versions available upon request

Triangular drawing nozzle, with tacking
tip, screw-on, 5.7 mm
Without tacking tip, screw-on 5.7 mm,
profile A
Without tacking tip, screw-on 7 mm,
profile B
7 × 5.5 mm

126.552

4 mm drawing nozzle, screw-on,
for fluor plastics

101.581230 V / 800 W heating element

43Remove the oxide layer from the welding rod

With the contour scraper, perfect weld seam pre- andpost-processing is achieved

Hot-air hand tools

General accessories
106.976

28 mm pressure roller (PTFE)

106.972

Brass pressure roller with ball bearings

152.676

Weld seam template

157.544

Leister Universal scissors 260 mm
with special shaft grinding

154.259137.855

Leister cutter with four spare blades

138.902

Hooked blade for LEISTER-cutter(10 dispenser with 10 pcs=100 pcs)

138.539

Straight-edge blade for LEISTER-cutter(10 dispenser with 10 pcs = 100 pcs)

151.382

Kehlfix

153.009

Plastfix

160.353

Cable cord roller 25 m, with 1 × CEE
400V and 2 × EU socket 230V

161.152

Cable cord roller 25 m, with 1 × CEE
400 V and 2 × T23 CH socket 230 V

161.207

Cable cord roller 25 m, with 1 × CEE
400 V and 2 × Typ E with ground pin
socket 230 V
Cable cord roller 45 m, 4 × 230 V,
EU socket

164.048

Scraper blade

160.015

Cable extension cord 15 m PUR 5 x
2.5 mm2, with CEE 400V plug

159.239

Cable extension cord 15 m PUR 3 x
2.5 mm2, with EU plug 230V

136.961

Temperature measuring device G1200

136.962

Insertion probe type K,
3 × 100 mm

154.026

Contour scraper

106.997

6 mm rotary burr for drilling machine, for car repairs

116.798

Brass brush

142.647

Brass brush

3 mm

136.963

Insertion probe type K,
1.5 × 100 mm

107.348

Tool rest for TRIAC AT, TRIAC ST,
LABOR S

142.570

Tool case 229 × 199 × 55
suitable for article 136.961

More at the new accessories catalog at leister.com/accessories

44

leister.com

104.283 HDPE welding rod

A

104.294 HDPE welding rod

kg

ColourProfileWelding accessories PE

Articlekg

ProfileArticleColour

Welding rods

Welding accessories div.

3

104.297 PA welding rod

A

3

A

3

104.313 PC welding rod / ABS / ALPHA (Honda)

A3

104.284 HDPE welding rod

B5

104.308 PUR welding rod

A3

104.299 HDPE welding rod

B5

106.654 Xenoy welding bandC2

106.650 HDPE welding bandC1

104.304 PVDF welding rod

A3

104.300 LDPE welding rod

A3

104.303 POM welding rod

A3

161.612 HDPE welding rod

D2

112.185 PC/PBTX Xenoy welding rod

A3

116.918 HDPE welding rod

D

2

Test bundles

104.287 PP welding rod

A

3

Test bundle bodywork welding rods, each consisting of
profile A pieces of 37 cm single marked
107.036
6× HDPE, 6× PP, 6× PA, 6× ABS, 6× PCABS / APLHA Honda,
6× PC / PBTP / Xenoy

Welding accessories PP
104.301 PP welding rod

A3

106.642 PPs welding rod, flame resistantA3

104.288 PP welding rod

B5

126.356 PP welding bandC2

161.611 PP welding rod

D2

104.296 PVC-U welding rod

A3

104.278 PVC-U welding rod

A3

106.641 PVC-U welding rod

A3

104.280 PVC-U welding rod

B5

104.279 PVC-U welding rod

B5

109.925 PVC-U welding rod

D4

104.302 PVC-P welding rod (soft)A3

104.295 ABS welding rod

A3

113.587 ABS welding rod

A3

107.027 ABS welding band

C

1

A

Test bundles standard each consisting of
profile A pieces of 37 cm single marked
107.037 5× PVC-U, 5× PVC-P, 5× PP, 5× ABS, 5× HDPE, 3× PC, 3× PA,
3× POM, 3× LDPE, 3× PC / ABS / ALPHA Honda /PBTP / Xenoy

Welding accessories PVC

A

Test bundle welding band each consisting of
107.040 profile C pieces of 37 cm single marked
9× HDPE, 8× 2 mm white, 9× PP, 8× 2 mm natural, 9× ABS,
8× 2 mm white / PBTP / Xenoy grey
C

Welding accessories ABS

Profile sizes
Profile A

Profile B

5.7
3.7

5

7

Profile C

Profile D

8

42

Dimensions in mm

45Legal Information
Contents
We take the greatest care in presenting correct, complete andup-to-date information. However, we can assume no responsibility whatsoever for the information offered in this catalog. We
reserve the right to modify or update all information at any time
without prior notice.
Copyrights and trademarks
All text, images, graphics as well as their arrangement are
subject to copyright protection and other laws on the protectionof intellectual property. The reproduction, alteration, transmission or publication of this catalog in part or in its entirety, except
for personal, non-commercial use, is prohibited in all possible
forms.
All the marks featured in this catalog (protected all brandmarks, logos and business names) are the property of Leister
Technologies AG or third parties and may not be used, permanently downloaded, copied or distributed without prior writtenconsent.
Specifications
Specifications are subject to change at any time without priornotice.
© Copyright by Leister.

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«Leister – the synonym for quality,
innovation and technology. »« With strong technical and application competence
Leister provides standard products and custom
engineered solutions to all major industries.»«Recognized as the world-wide leader indeveloping and producing quality products.

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network are committed to be strong and reliable
partners, giving you the opportunity to move yourbusiness forward.

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with representation in over 100 countries we are
local world wide and close to our customers.

»leister.com

Leister Technologies AG
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fax:+41 41 662 74 16
leister@leister.com
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