Hot wedge

Process where the material is dragged against a hot surface (wedge) and where rollers press the preheated surfaces together.

Advantages with hot wedge:  
+ Can be used for non-dielectric materials
+ Most hot wedge systems have very helpful attachments for overlapping, hemming and tubing products

Disadvantages with hot wedge:
- Difficult or impossible to remake the weld if the result is not satisfactory 
- Requires a skilled operator
- Noisy process which can create hazardous fumes/gas
- Does not work well on thicker materials (materials heavier than 1000 g/m²)
- Difficult to create welds that are air-, liquid-, and gas-tight

Hot wedge

Made in Sweden Made in Sweden