Development and manufacturing of plastic welding machines, extruders, air heaters and blowers for professional plastic welding.
BAK Technology AG
Kerns (OW), Switzerland · Additional production and development facilities in Germany and AustriaNew on Amplifa
About BAK Technology AG
BAK Technology AG is a Swiss manufacturer of plastic welding machines, hand welding extruders, air heaters and hot air blowers headquartered in Kerns, Obwalden. The company develops and produces machines for welding thermoplastics on construction sites as well as in production, including wedge welding machines, hot air welding machines, hand-held devices, semi-automatic welding machines, industrial extruders and tensile testing and inspection devices. The machines are used to process thermoplastic materials such as PE-LD, PE-HD, PP, TPO, PVC, ECB and EVA, for example geomembranes in civil engineering, tunnel and pond construction, roofing membranes, tarpaulins and floor coverings. Air heaters serve for integration into production processes, for instance for activating adhesives, shrinking and drying in the packaging industry. Distribution takes place worldwide via distribution partners in over 50 countries; the product range includes accessories, filaments and the myBAK app with GPS location tracking of the machines. Since 2024, BAK Technology AG has belonged to the ROTHENBERGER Group; production and development facilities are located in Switzerland, Germany and Austria.
- Site
- Kerns (OW), Switzerland
- Processes
- Plastic welding (hot air welding), Wedge welding (wedge welding machine ProtOn WEDGE), Hot air welding (roof welding machine LarOn 21), Hand welding (hot air hand welding device RiOn 2), Extrusion welding (hand welding extruder), Industrial extrusion, Plastics processing / geomembrane welding (civil engineering, tunnel, roof, tarpaulins, flooring), Testing (tensile testing devices, testing devices, spark testing device)
- Materials
- PE-LD, PE-HD (HDPE), PP, ECB, EVA, TPO, PVC (coated fabric), Bitumen
- Certificates
- CE conformity (machines)
- Founded
- 1997
- Industries
- Roofing, Civil engineering/geomembranes, Tunnel construction, Tarpaulin processing (truck/advertising tarpaulins), Plastics processing, Packaging industry
- 01
Development and design
- 02
Production of the machines
- 03
Quality inspection (tensile testing and inspection devices)
- 04
Distribution via distribution partners worldwide
- 05
Consulting on machine selection
- 06
Accessories, filaments and digital services (myBAK app)
Materials and Processes
PE-HD (HDPE)
Thermoplastic geomembranes for civil engineering, tunnel and landfill construction, welded with wedge welding machines and extruders.
PE-LD
Soft polyethylene for geomembranes in civil engineering.
PP
Polypropylene for geomembranes, sheets and containers in extrusion and wedge welding.
TPO
Thermoplastic polyolefins for roofing membranes and geomembranes.
PVC (coated fabric)
Coated tarpaulin fabric for truck and advertising tarpaulins as well as roofing membranes.
ECB
Thermoplastic bitumen composite for geomembranes in construction.
EVA
Ethylene-vinyl acetate for thermoplastic geomembranes.
Bitumen
Bitumen roofing membranes, welded with the conversion kit on the roof welding machine LarOn 21.
ABS (filament)
3D printing filament in the accessories range for plastic welding applications.
PA, PP, PVA, TPS, TPU (filaments)
Various thermoplastic filaments for extrusion welding and repairs.
Locations
Kerns (OW)
CHHeadquarters with production and office building (extension building 2017)
- Materials
- PE-LD, PE-HD, PP, ECB, EVA, TPO, PVC, Bitumen
- Wedge welding machine ProtOn WEDGE (in-house production)
- Hot air roof welding machine LarOn 21 (in-house production)
- Hot air hand welding device RiOn 2 (in-house production)
Machines and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic welding (hot air welding)Joining | – | – | – | – | thermoplastics |
| Wedge welding (wedge welding machine ProtOn WEDGE)Joining | – | – | – | – | PE-LD, PE-HD, PP, ECB, EVA, TPO |
| Hot air welding (roof welding machine LarOn 21)Joining | – | – | – | – | all thermoplastic roofing materials, TPO, PVC, bitumen (with conversion kit) |
| Hand welding (hot air hand welding device RiOn 2)Joining | – | – | – | – | thermoplastics |
| Extrusion welding (hand welding extruder)Joining | – | – | – | – | HDPE, PP |
| Industrial extrusionJoining | – | – | – | – | thermoplastics |
| Plastics processing / geomembrane welding (civil engineering, tunnel, roof, tarpaulins, flooring)Joining | – | – | – | – | HDPE, TPO, PVC, PE |
| Testing (tensile testing devices, testing devices, spark testing device)Testing | – | – | – | – | plastic geomembranes |
| Heating/activating adhesives, shrinking, drying (air heaters/blowers)Surface | – | – | – | – | plastics |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Wedge welding machine | BAK Technology AG ProtOn WEDGE | – | Seam dimensions 15-15-15 mm, dimensions 370 x 435 x 280 mm, max. 420°C, max. 2.5 m/min, max. 1200 | – | Kerns, Switzerland |
| Hot air roof welding machine | BAK Technology AG LarOn 21 | – | Speed 0.5-21 m/min, temperature 20-620°C, dimensions 610 x 410 x 320 mm, 42 kg with | – | Kerns, Switzerland |
| Hot air hand welding device | BAK Technology AG RiOn 2 | – | Temperature 20-650°C, air volume 250 l/min, dimensions 100 x 360 mm, 1.2 kg with cable | – | Kerns, Switzerland |
| Hand welding extruder | BAK Technology AG ExOn C3, ExOn 1, ExOn 2, ExOn 5, ExOn 6, HS28 | – | – | – | – |
| Air heater | BAK Technology AG Type S36, L62, PH62, PH92, XS20, XS21, S21, S32, M50, M50L, XL92, PN10, Hot | – | – | – | – |
| Hot air blower | BAK Technology AG SorOn, Compact, HotOn | – | – | – | – |
| Semi-automatic welding machine | BAK Technology AG MicOn, MicOn Edge | – | – | – | – |
| Tensile testing device | BAK Technology AG TestOn, TestOn Quick | – | – | – | – |
| Battery-powered hand welding device | BAK Technology AG LiiOn, Akku MAXI | – | Akku MAXI: 90 minutes runtime | – | – |
Additional services
Quality
For quality inspection of welded seams, BAK offers tensile testing devices (TestOn, TestOn Quick) as well as testing devices and spark testing devices. The machines are developed, tested and built in Switzerland; welding parameters such as temperature, speed and joining force are continuously adjustable.
| Evidence | Kerns (OW) |
|---|---|
| CE conformity (machines) |
History
- 1997
Foundation of BAK Thermoplastic Welding Technology AG in Arbon, Switzerland
- 1998
Worldwide distribution of machines for welding plastics
- 1999
Opening of a branch in Chiasso, Switzerland
- 2003
Relocation of headquarters to Kägiswil, Switzerland
- 2006
Termination of the business relationship with Leister; establishment of own development and production; cooperation with the company Herz (Germany); first production facility in Alpnach, Switzerland
- 2008
Foundation of BAK Asia Co Ltd. in Bangkok, Thailand
- 2010
Stake in the company Dohle Extrusiontechnik GmbH, Germany
- 2011
New construction and occupancy of the production and office building in Kerns, Switzerland
- 2016
Start of the extension building of the production and office building in Kerns
- 2017
Opening of the extension building in Kerns; 20 years of BAK
- 2020
New company name: BAK Technology AG
- 2022
25 years of BAK
- 2024
Acquisition of BAK Technology AG by the ROTHENBERGER Group