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technissis.gr > Products > Leister > Civil Engineering > Reservoirs and Fisheries
Welding of geomembranes for reservoirs and fish farms
Versatile and sustainable

COMET

Leaktightness is an extremely high priority when it comes to sealing systems for distribution reservoirs and fish farm tanks. For the most part, such sealing systems consist of HD-PE, PP, PVC or TPO material. Welding must ensure that the material remains totally leaktight in the long term. Reliable tools, but ones which also enable welding to be carried out quickly and, therefore, economically, are needed here to safeguard the safety of the sealing system. The small, easy to handle COMET and TWINNY tools adapt to the surface topography perfectly and weld the plastic geomembranes safely, making them leaktight for the long term. Vertical and horizontal work can be performed on walls too with the lightweight and flexible TRIAC DRIVE AT semi-automatic welding machine. Leister offers a wide range of hand extruders and hand welding tools, together with matching accessories, for welding connections and details.

  • Lap welding of plastic geomembranes on various surfaces
  • Welding of connections and details
Leister has the solution
Leister offers various hot-wedge and combi-wedge machines for welding HD-PE, PP, PVC or TPO materials. A broad spectrum of hand extruders and hand welding tools completes the range.
  • Machines for the efficient welding of lap seams with or without a test channel
  • Hand extruders for the welding of connections and details
  • Wide range of hand welding tools and accessories

Hot-air hand tools
TRIAC AT
The TRIAC AT is an intelligent hot-air hand tool for welding and shrinking plastics that is suitable for on-site use.
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TRIAC ST
Handiness, reliability and versatility are the key arguments in favor of the TRIAC ST.
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Extrusion Welders
FUSION 2
The FUSION 2 convinces with its ergonomic design. The simple operation and first-class welding quality have helped it to become the break...
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FUSION 3
With its long and narrow shape, the FUSION 3 enables comfortable work, even on the floor.
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FUSION 3C
The somewhat shorter FUSION 3C provides an astounding output volume of up to 3.6 kilograms per hour.
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WELDPLAST S2
The WELDPLAST S2 is a compact, ergonomically designed workhorse. The handy size extruder puts out two kilograms per hour without difficulty.
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WELDPLAST S2 PVC
The WELSDPLAST S2 PVC has integrated corrosion protection and has been especially designed to satisfy the high requirements of PVC extrus...
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Hot-wedge Welders
ASTRO USB
He welds up to five meters per minute and allows for the consistent recording of all relevant welding parameters.
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COMET
The small powerhouse COMET is specially designed for the demands of landfills sites, mines and tunnels.
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COMET USB
COMET USB's memory system is designed for use on construction sites. Because this compact hot-wedge welding machine records all relevant ...
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GEOSTAR G5
The super-fast flexible all-rounder with many accessories welds practically every type of plastic while itself weighing only 16.4 kg.
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GEOSTAR G7
The workhorse. Undefeated champion in its weight class (17.7 kg). With extra amounts of driving force and large welding wedge (130 x 50 mm).
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Combi-wedge Welders
TWINNY S
This lightweight tool TWINNY S is optimized for overhead welding and is ideal for thin materials used in civil engineering and tunnel con...
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TWINNY T
The TWINNY T is excellent for welding PVC and other thin or soft membranes.
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TWINNY T USB
TWINNY T USB makes data storage and is excellent for welding PVC and other thin or soft membranes
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Semiautomatic hot-air tools
TRIAC DRIVE AT
The TRIAC DRIVE AT are up to three times faster than manual welding. The unique, semiautomatic welding tool.
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Testing instruments
Test needle
Air pressure test manometer used in civil engineering for proving the tightness of double welding seams
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EXAMO USB
EXAMO USB performs tests at the construction site quick, reliable and uncomplicated.
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VACUUM PUMP
Pump to generate a vacuum in the VACUUM BOX
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VACUUM BELL
Testing bell for proving the tightness of double overlap welding seams in civil engineering
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