Hot Cutting Wire


Resistance wire is used as a hot cutting wire for the accurate cutting of complex shapes from polystyrene foam (EPS) and extruded polystyrene (XPS). Depending on the application, the resistance wire is generally a special nickel alloy or a stainless steel, and is heated to approximately 200°C by electrical resistance. As the hot wire is brought into contact with the foam to be cut, the heat from the wire vapourises the material just in advance of the contact. The result is a clean and very accurate cut.

Hot wire cutting is used extensively in the packaging industry and for cutting shapes for R&D prototyping, modelling and architectural mouldings.