Press Machines for Foam & Upholstery
Foam cutting is one of the most tonnage-intensive press applications — thick EVA or polyurethane foam requires significantly more force than its softness suggests, because the material compresses before it cuts. A 50mm EVA seat cushion can require 80+ tonnes to cut cleanly, which surprises buyers coming from leather or rubber backgrounds. Getting the press specification right for foam means understanding the relationship between thickness, density, and required force.
Which Press for This Industry
The standard for foam cutting production. Large-format beam presses (1200mm+) handle the big die sizes used for seat cushions, mattress components, and acoustic panels. The beam configuration provides consistent force across the full cutting area, which matters for large foam shapes.
Used for very large foam components where a standard clicker press beam isn't wide enough. Flat bed hydraulic presses can accommodate custom die sizes and are used in mattress and large upholstery production.
Material Considerations
| Material | Typical Thickness | Notes |
|---|---|---|
| EVA foam (standard density) | 5–50mm | Force factor 2–5 N/mm². Deceptively high tonnage for thick pieces |
| EVA foam (high density) | 5–30mm | Force factor 4–8 N/mm². Used for shoe midsoles and sports equipment |
| Polyurethane foam (soft) | 20–100mm | Force factor 3–6 N/mm². Seat cushions, mattress toppers |
| Polyurethane foam (firm) | 10–50mm | Force factor 5–10 N/mm². Structural upholstery components |
| Acoustic foam | 25–100mm | Variable density. Test cut before specifying press |
| Rebonded foam | 20–80mm | Higher force than virgin foam due to density variation |
For a full breakdown of force requirements by material, use our interactive tonnage calculator.
What to Look for When Buying
- 01Run the tonnage calculation before you buy — thick foam requirements surprise most buyers. A 50mm EVA seat cushion with a 2,500mm perimeter die needs 80+ tonnes. Many workshops underspecify and end up with a press that tears rather than cuts.
- 02Die perimeter for large foam shapes can be 2,000–4,000mm. Use the actual perimeter measurement, not a rough estimate — the difference between 2,000mm and 3,000mm is a 50% change in required force.
- 03Cutting board hardness matters for foam. Softer boards allow the foam to compress into the board before cutting, which can cause incomplete cuts. Use firm nylon boards.
- 04For very thick foam (80mm+), check that the press has sufficient stroke length — some presses don't have enough travel to compress and cut thick material in a single stroke.
- 05Consider a press with adjustable speed control for foam — slower ram speed on the cutting stroke gives cleaner edges on soft foam than a fast, aggressive stroke.