GEO/Civil Engineering 

  • Optimal for tunnel constructionThe lightweight TWINNY S with combi wedge is optimized for overhead welding in tunnel construction. Welding thin membranes and liners is a breeze with this lightweight welding machine.

  • The TWINNY T5 automatic welding machine is suitable for welding various geomembranes made of HDPE and LDPE. Additionally, foils made of PVC, TPO, FPO, PP and SPE can also be welded without any problems. The plastic welding tool can be used in construction of tunnels, swimming pools, fish farms, mining and landfill.The welder is practical and user...

  • Leister's TWINNY T7 is the new edition of the well-rounded TWINNY T automatic welder. It is ideal for welding thick and thin geomembranes, made of HDPE, LDPE, TPO, FPO, PP, as well as PVC and CSPE. The speed, temperature, welding pressure and air volume of this combi-wedge automatic welder can be documented with Leister Quality System (LQS), via the...

  • The COMET 500 hot-wedge welding machine from Leister offers practical convenience to reliably weld thick and thin geomembranes made of thermoplastics such as PE, HDPE and LDPE. It reaches speeds up to 8 m/min - without the need for a gearbox conversion. The required welding pressure can be set on the COMET 500 by means of a force module with an adjustment...

  • The COMET 700 automatic hot-wedge welding machine from Leister offers everything that civil engineering users want when overlap welding thick and thin geomembranes made of PE, HDPE and LDPE. Thanks to the proven Leister Quality System (LQS), Wi-Fi and GPS, the COMET 700 documents the welding parameters and coordinates, which allows the quality of the weld...

  • Leister’s GEOSTAR G5 is a maintenance-friendly, hot-wedge welding machine, optimized for underground engineering. The GEOSTAR G5 automatic welder has a sophisticated design, consisting of a robust, aluminum frame that withstands challenging circumstances. The integrated clamp and handle lock guarantees simple, ergonomic, single-handed operation on the job...

  • The GEOSTAR G7 is a maintenance-friendly, easy-to-use hot-wedge welding machine. It is optimized for underground engineering, landfills and mines. The sophisticated frame made of solid cast aluminum is advantageous. Furthermore, the integrated clamping and handle locking mechanism guarantees simple, single-hand operation. At welding speeds up to 12 m/min...

  • The WGW 300 hot-wedge welding machine from Weldy, a Leister brand, welds thermoplastic geomembranes made of HDPE (0.8 to 2.5 mm), LDPE, TPO, FPO, PVC* (0.8 to 3.0 mm), etc. effortlessly and reliably. The geomembranes are typically used in landfills and mines, as well as for aquaculture, fish farms, irrigation systems, etc. and are permanently welded...

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