- The document provides technical specifications for various welding machines and hand tools from Leister for welding geomembrane liners, including wedge welders, hot air welders, and combination welders. - The machines and tools allow for welding of various materials like PE, PVC, and PP in thicknesses ranging from 0.5mm to 5mm and come in sizes suitable for both civil engineering and tunnel construction applications. - Key features highlighted include digital control and display of welding parameters, adjustable welding pressure and speed, and optional data recording for quality control.

1. ®
Civil Engineering and Tunnel Construction
• Worldwide the smallest and lightest compact
machine without control box
• High welding capacity thanks to special wedge with
optimum heat transfer
• Fully developed drive technology for heavy loading
• Digital display of temperature, pressure and speed
• Optional memory card for data recording
COMET
Type COMET
Voltage V~ 120, 230
Frequency Hz 50/60
Temperature °C max. 420 steplessly controlled
Welding pressure N max. 1000 steplessly adjustable
Drive m/min. 0.8–3.2 steplessly controlled
Memory card optional
Size L×W×H mm 285 × 230 × 230
Weight kg 7.5
Technical Data
COMET wedge welding machine used for welding
geomembrane liners in a landfill.
Wedge welder, combiwedge machines and hand tools from LEISTER for welding and
prefabrication of geomembrane liners for civil engineering and tunnel construction.
Materials: PE-HD, PE-LD, PE-C, PVC-P, PP, PFA, ECB, EVA,TPO
Approval mark:
Wedge Welding Machines
Power consumption 1500W
Wedge
70 mm
Copper
70 mm
Steel
Type of Material
PE-HD, PE-C, PP
PE-LD
PVC-P
1.5 – 2.0 mm
2.0 – 3.0 mm
2.0 – 3.0 mm
Thickness
Recommended
Power consumption 1200W
Wedge
50 mm
Copper
50 mm
Steel
Type of Material
PE-HD, PE-C, PP
PE-LD
PVC-P
0.5 – 1.5 mm
1.0 – 2.0 mm
1.0 – 2.0 mm
Thickness
Recommended
Power consumption 700W
Wedge
20 mm
Steel
Type of Material
PE-HD, PVC-P,
PE-LD
0.5 – 1.0 mm
Thickness
Recommended

2. ®
2
ASTRO COSMO
Type ASTRO
Digital display of temperature, speed and voltage
Voltage V~ 120, 230
Power consumption W 1800
Frequency Hz 50 /60
Temperature °C max. 420 steplessly controlled
Welding pressure N max. 1500 steplessly adjustable
Drive m/min. 0.5– 5.0 steplessly controlled
Overlap width mm max. 180
Material thickness mm 1.5 – 3.0
Size L×W×H mm 430× 270× 310
Weight kg 23
Technical Data
Type COSMO
Digital display of temperature and speed
Voltage V~ 230
Power consumption W 2000
Frequency Hz 50 /60
Temperature °C max. 420 steplessly controlled
Welding pressure N max. 1500 steplessly adjustable
Drive m/min. 0.5–5.0 steplessly controlled
Overlap width mm max. 180
Material thickness mm 1.5 – 3.0
Size L×W×H mm 600 × 380 × 450
Weight kg 32.0
Approval mark:
Type COSMO with process control and recording
Digital display of temperature, pressure,
speed and seam thickness reduction.
Voltage V~ 230
Power consumption W 2000
Frequency Hz 50/60
Temperature °C max. 450 steplessly controlled
Welding pressure N max. 2500 steplessly adjustable
Drive m/min. 0.5 –5.0 steplessly controlled
Overlap width mm max. 180
Material thickness mm 1.5 – 3.0
Recording Memory card or printer
Size L×W×H mm 600 × 380 × 450
Weight kg 32.0
Approval mark:
Technical Data
ASTRO hot-wedge welder achieves perfect welding seams
with highest welding speed (up to 5 m/min.)
COSMO wedge welder being used to weld a 2.5 mm
PE-HD geomembrane liner.
• Highest welding speed with best quality
• Welding pressure steeplessly adjustable
• Designed for field application
• One hand - two functions
¯
®®NEW

3. ®
3
TWINNY T TWINNY S
Type TWINNY T
Voltage V~ 100, 120, 200, 230
Power consumption W 1600, 1900, 2200, 2300
Frequency Hz 50/ 60
Temperature °C max. 560 steplessly
Welding pressure N max. 1000 steplessly
Drive m/min. 0.8– 3.2 steplessly
Air flow l/min. Step 2: 150
Step 3: 190
Air pressure stat. Pa Step 2: 1500 (15 mbar)
Step 3: 2100 (21 mbar)
Emission level LpA (dB) 71
Memory card optional
Size L×W×H mm 340 × 340 × 270
Weight kg 7.9 civil engineering
6.9 tunnel construction
Approval mark:
Technical Data
TWINNY T with test channel welding 1.5 mm PE-HD
liners in a landfill.
TWINNY S with combi-wedge short welding in a tunnel.
Tunnel construction
– Guide handle and travelling wheels
Civil Engineering
– Guide handle, travelling wheel
Prefabrication model on request
Combiwedge – Welding machines
Welding speed
2 – 3.5 m/min. depending on formulati-
on and thickness of the geomembrane
liner as well as ambient temperature.
Welding pressure (recommended)
PVC-P, ECB 300 – 500 N
PE-HD, PP 600 – 1000 N
Short Combiwedge
for material thickness of 0.3
mm or more for thin and
flexible films. With or with-
out test channel
Long Combiwedge
for material thickness of 0.8
mm or more for films and
geomembrane liners. With
or without test channel
Type TWINNY S
Voltage V~ 100, 120, 200, 230
Power consumption W 1600, 1900, 2200, 2300/2900
Frequency Hz 50/ 60
Temperature °C max. 600 steplessly
Welding pressure N max. 1000 / max. 500
Drive m/min. 0.2– 2.5 / 0.8– 4
Air flow l/min. Step 2: 150
Step 3: 190
Air pressure stat. Pa Step 2: 1500 (15 mbar)
Step 3: 2100 (21 mbar)
Emission level LpA (dB) 71
Size L×W×H mm 350 × 390 × 270
Weight kg 6.9 civil engineering
6.5 tunnel construction
Approval mark: CCA certified
Technical Data
• High-tech version
• Display of welding parameters

4. ®
4
TWINMAT
Type TWINMAT
Digital display of temperature and speed
Voltage V~ 230, 400
Power consumption W 4600, 5800
Frequency Hz 50 / 60
Temperature °C 20 – 600 steplessly controlled
Air flow l/min. max. 500
Drive m/min. 0.5 – 5.0 steplessly controlled
Overlap width mm max. 180
Material thickness mm 1.5 – 5.0
Welding pressure N max. 2500 steplessly adjustable
Operating temperature °C –5 to 45
Air pressure stat. Pa 5000 (50 mbar)
Size L×W×H mm 600 × 690 × 450
Weight kg 32.0
Approval mark: CCA certified
Type TWINMAT with process control and recording
Digital display of temperature, pressure,
speed and seam thickness reduction
Voltage V~ 230, 400
Power consumption W 4600, 5800
Frequency Hz 50 / 60
Temperature °C 20 – 620 steplessly controlled
Air flow l/min. max. 500
Drive m/min. 0.5 – 5.0 steplessly controlled
Overlap width mm max. 180
Material thickness mm 1.5 – 5.0
Welding pressure N max. 2500 steplessly adjustable
Operating temperature °C –5 to 45
Air pressure stat. Pa 5000 (50 mbar)
Recording Memory card or printer
Size L×W×H mm 600 × 690 × 450
Weight kg 32.0
Approval mark: CCA certified
Technical Data
TWINMAT combi-wedge welding machine achieves
perfect welding seams even in humid conditions.
WELDMAX
WELDMAX handextruder being used to repair a
PE-HD geomembrane.
Type WELDMAX
Voltage V~ 120, 200, 230
Power consumption W 1800, 2200, 2200
Frequency Hz 50/60
Air-Temperature °C max. 400, steplessly controlled
Air flow l/min 300
Plasticizer-Temperature °C 270, steplessly controlled
Output kg/h 0.7
Welding rod mm ø 4 ± 0.2 (according to DVS 2211)
Size mm 443 × 94 × 255, handle ø 57
Weight kg 3.8
Approval mark: CCA certified
Technical Data
• Compact hand extruder with integrated hot air
blower, plasticizer unit, electronic control and
feeder for welding rod in one housing
• Steepless temperature controls for plasticiser
unit and preheated air
• Universal extruder for PE-HD, PP and PPS with-
out change-over
• Continuous and stepless feeding of welding rod
• High efficiency, no multiple welding
Mini-Handextruder

5. ®
5
Hand welding tools
TRIAC PID
The welding tool for quality assurance
TRIAC S
The reliable hot air tool
Type TRIAC PID
Voltage V~ 42, 100, 120, 200, 230
Power consumption W 1000,1400,1600,1400,1600
Frequency Hz 50/60
Temperature °C 50 – 600, steplessly controlled
Air flow l/min. max. 230
Pressure stat. Pa ca. 3000 (30 mbar),
after 24 h operating time
Emission level LpA (dB) 65
Size mm 100 × 340, handle ø 56
Weight kg 1.4 with 3 m cord
Approval mark: CCA certified
Technical Data
Type TRIAC S
Voltage V~ 42, 100, 120, 200, 230
Power consumption W 1000, 1400, 1600, 1400, 1600
Frequency Hz 50/60
Temperature °C 20 – 700, steplessly controlled
Air flow l/min. max. 230
Pressure stat. Pa ca. 3000 (30 mbar),
after 24 h operating time
Emission level LpA (dB) 65
Size mm 100 × 330, handle ø 56
Weight kg 1.3 with 3m cord
Approval mark: CCA certified
Technical Data
TRIAC PID overlap welding a PE-LD geomembrane. TRIAC S with wide slot nozzle and pressure roller during
the tacking process, before extrusion welding.
• Reproducible welding thanks to light weight and
smaller diameter handle
• Stepless electronic temperature control, therefore
independent of voltage fluctuations and varying
ambient temperature (PID control)
• Effortless welding seams thanks to digital temperature
display of SET and ACTUAL value
• Adaptor tube with heat protection
• Electronic heating element protection and
automatic shut-off of the motor at minimal
carbon level
• Multiple replace of carbon brushes possible,
therefore suitable for continuous operation

6. ®
6
EXAMO
For shearing, peeling and tensile tests
Technical Data
Type EXAMO 300 F EXAMO 600F
Power consumption V~ 120, 230 120, 230
Current W 200 200
Max. tensile load N 4000 3000
Load messure range N 0 – 4000 0 – 3000
Min. jaw spacing mm 5 5
Max. jaw spacing mm 300 600
Max. Range mm 300 600
Testing speed mm/min. 10 – 300 10 – 300
Max. sample thickness mm 7 7
Max. sample width mm 40 (60 optional) 40 (60 optional)
Memory-Card optional optional
Dimension of
storage case L×W×H mm 750 × 270 × 190 1050 × 270 × 190
Weight kg 14 17.5
Digital display – Max. tensile load, FPeak
– Elongation % at FPeak
–Tearing force, FTear
– Elongation % at FTear
–Test speed
– Position
Approval mark:
Tensiometer
Type MINOR
Air supply for max. one Diode PID/Diode S
Voltage V~ 42, 120, 230
Power consumption W 100, 100, 100
Frequency Hz 50/60
Air flow l/min. 400
Pressure stat. Pa 4000, (40 mbar), 50/60 Hz
Emission level LpA(dB) 67
Size mm 250 × 95, handle ø 64
Weight kg 1.15 with cord
Approval mark:
Type DIODE PID / DIODE S
Voltage V~ 42, 100, 120, 230
Power consumption W 900, 1400, 1600, 1600
Frequency Hz 50/60
Temperature °C 20 – 600, steplessly controlled (Diode PID)
steplessly adjustable (Diode S)
Air flow l/min. min. 40
Air pressure Pa max. 105
(1000 mbar)
Size mm 265 × 57, handle ø 40
Weight g 425, 1150, with 3 m cord and
3 m air hose
Approval mark: CCA certified
Technical Data
DIODE PID with MINOR blower
The perfect combination
DIODE PID and MINOR
overlap welding a PVC
membrane in a tunnel.
• handy, robust and light
• designed for field application
• digital display of process values
• Geotextile version available

7. ®
7
LEISTER is the only tool manufacturer to offer all possible types of welding systems worldwide!
Welding
system
Description Tool Diagram
Hot Wedge
Energy transfer
through surface
contact
Automatic machine
Energy transfer
through surface
contact and hot air
Automatic machine
Contactless energy
transfer
Hand tool
Surface welding joint Hand tool
Advantages
Higher welding speed
Preheating, drying and
cleaning of base material
enhanced welding quality
through limited stress
cracking
Gentle temperature transfer
No multiple welding
Combination
hot air with
wedge
(Combi-
wedge)
Hot Air
Extrusion
Hot wedge welding
Hot air welding
Combiwedge welding
Drive/Pressure
roller
Overlapp welding
Overlapp welding
Upper liner
Hot wedge
Lower liner
Liner
Guide roller
Welding direction
Welding direction
Hot air
Liner
Hot air
Welding direction
Plasticizing unit
Welding shoe
Extrudate
Hot air nozzle
Blower
Heating element
Pressure roller
Drive/
Pressure roller
Welding
direction
Material
plasticizing
with hot air
Pre-heating
with contact
heat
Pre-heating, drying
cleaning of the material
with hot air
Hot air
Pinch roller
Welding nozzle
Hot air outlet
Hot air stream
Upper liner
Lower liner3 2 1
Lap welding
• Simultaneous digital display of SET and ACTUAL value of
– Welding temperature
– Welding speed
– Welding pressure
– Seam thickness reduction
– Voltage
• Microcontroller for control of welding temperature and
speed. SET values remain constant regardless of
– Voltage fluctuations
– Ground surface variations
– Changes in ambient temperatures
• Humid and tropics-proved LCD display with background
illumination for underground working
• Waterproof special heat cartridges
• Waterproof keyboard
• Stepless welding pressure adjustment without
tools
• Swivel-head guarantees equalizing of pressure to
the drive/pressure rollers. Perfect welding of
T-joints without any problems
• Large overlap width makes laying and welding
easy
• Easy operation and user friendly handling ensure
problem-free processing
• Designed for field application
• Field tested
Technical highlights of LEISTER welding machines

8. ®
LEAFLET STT/10.2001
Order Illustration
Number not to scale
107.135
106.992
106.993
5,7
3,7
7
5
107.132
107.123
106.975
106.976 Pressure roller 28mm (PTFE)
110.052
110.051
106.950
5,7
7
5
3,7
Endless profiled welding rod 5.7 × 3.7mm, 7 × 5mm in PVC-U (grey), PVC-P (transparent),
PE-HD (black), PE-LD (black), PP (beige)
Speed welding nozzle 5.7mm push-fit on Tubular nozzel ø 5mm
Speed welding nozzle 7mm push-fit on Tubular nozzel ø 5mm
Test kit with injector needle
Test kit for welding fittings
Wide slot nozzle 40mm, PTFE coated push-fit on Triac PID/Triac S, Diode PID/Diode S
Wide slot nozzle 40mm push-fit on Triac PID/Triac S, Diode PID/Diode S
Wide slot nozzle 20mm, push-fit on Triac PID/Triac S, Diode PID/Diode S
Welding fitting PE
One arm pressure roller 40mm with ball bearings (silicon)
100.303 Tubular nozzle ø 5mm push-fit on Triac PID/Triac S, Diode PID/Diode S
Accessories, Civil Engineering and Tunnel Construction
ISO 9001:2000LEISTER Process Technologies
Riedstrasse
CH-6060 Sarnen/Schweiz
Tel. + 41- 41 662 74 74
Fax + 41- 41 662 74 16
www.leister.com e-mail leister@leister.com
112.628
112.626
112.627
112.625
112.630
Welding shoe complete, for fillet weld 10mm Weldmax
Welding shoe complete, for overlap 20mm Weldmax
Welding shoe complete, for fillet weld 8mm Weldmax
Welding shoe complete, for fillet weld 6mm Weldmax
Welding shoe complete, for fillet weld 5mm Weldmax
112.624 Welding shoe complete, for V-seam 10mm Weldmax
112.623 Welding shoe complete, for V-seam 8mm Weldmax
112.621 Welding shoe complete, for V-seam 6mm Weldmax
112.629 Welding shoe complete, for V-seam 5mm Weldmax
112.830
112.852
Welding shoe complete blank Weldmax
Storage case for Weldmax
Technical data are subject to change without notice
114.104 Shipping case for Astro