Concrete Formwork from EPS with CNC Hot Wire

EPS as Formwork Material - Economical and Versatile

EPS Styrofoam has established itself as a formwork material in modern concrete construction. It is light, dimensionally stable, pressure-resistant enough for concrete casting and can be cut into any desired shape with CNC hot wire cutting. Whether simple flat formwork, complex arches, lost formwork that remains in the concrete or insulation under the floor slab - the hot wire produces all shapes quickly and precisely.

Formwork vs. Lost Formwork - the Difference

Normal EPS formwork is removed after casting and can be reused. It gives the concrete the desired shape. Lost EPS formwork remains in the concrete - it not only defines the shape but also takes on an insulating function. The concrete adheres to the EPS, and the EPS insulates the concrete structure. Lost EPS insulation is particularly widespread with floor slabs.

Applications in Concrete Construction

• Floor slab insulation - lost EPS insulation beneath the concrete slab
• Arches and vaults - tapered 4-axis cuts
• Niches and recesses in concrete walls
• Column shapes and round concrete bodies
• Ceiling structures and coffered ceilings
• Facade elements and architectural details in exposed concrete
• Foundations and basement floors with integrated insulation

Tapered Formwork - the Strength of 4-Axis Cutting

Round and tapered concrete bodies - columns, arches, vaults - need formwork that matches exactly this shape. With the CNC hot wire, tapered EPS formwork is produced in a single 4-axis cut. No reworking, no sanding, no routing. The result is precise formwork that gives the concrete exactly the desired shape. No other process is as economical for this as the hot wire.