Cold-Knife Cutting for EVA, PE and PU Foam Sheet
Foam sheet needs a cold cut. MNT CNC oscillating-knife cutters slice EVA, PE and PU foam straight from your file — no die, no heat. The blade parts the foam cleanly where a laser melts the edge and a hot wire scorches it.
Sheet, not block. If you carve rigid EPS or XPS block into 3D shapes, a hot-wire or 3D foam router is the right machine. This page is about flat EVA, PE and PU foam sheet from roughly 1–50 mm — packaging inserts, footwear parts, seating and foam gaskets — cut, kiss-cut and creased ready to use. See the full MNT digital cutting machine range.
Foam Sheet We Cut
EVA Foam
Closed-cell EVA for footwear, sports and packaging — cut with a clean, square edge and no melt.
PE Foam (EPE)
Expanded polyethylene for packaging cushioning and protective inserts — kiss-cut or through-cut from your file.
PU Foam
Polyurethane for upholstery, seating and mattress — soft edge without crushing or tearing.
XPE & Specialty Foam
Cross-linked and technical foams for gaskets, insulation and sealing — clean cold cuts.
What You Can Make
Packaging Inserts
Protective foam inserts and cushioning cut to shape — no die, same-day samples.
Footwear & Sports
EVA midsoles, insoles and padding cut clean for footwear and sports gear.
Upholstery & Seating
Sofa, office-chair and cushion foam cut to contour without crushing.
Automotive & Aerospace Seating
Seat and trim foam cut precise and repeatable for vehicle interiors.
Gaskets & Sealing Foam
Foam gaskets and seals cut from CAD with a clean edge for reliable sealing.
Cases & Tool Inserts
Custom foam inserts for cases and tool organizers, cut to exact outlines.
Recommended MNT Machines
C2516 Digital Knife Cutter
- Cuts: EVA, PE, PU foam sheets & inserts
- Working area: 1600 × 2500 mm
- Best for: large foam sheets, short runs
C6090 Compact Digital Cutter
- Cuts: EVA/PE/PU foam samples & small parts
- Working area: 600 × 900 mm
- Best for: samples, footwear parts, R&D
Custom Foam Cutting Solution
- Cuts: your foam spec & thickness
- Size: built to your table
- Best for: production lines, special tools
Why an Oscillating Knife Wins for Foam Sheet
Pick the tool by foam form, not just foam type. For rigid EPS or XPS block carved into 3D shapes, a hot wire is the right machine. For flat EVA, PE and PU sheet, every heat-based method fails somewhere: a laser melts and fumes, a hot wire scorches and cannot follow a flat contour cleanly, and a CNC router throws dust and tears soft foam. A cold oscillating knife cuts foam sheet clean.
| Factor | Laser | Hot-wire | CNC router | Oscillating knife |
|---|---|---|---|---|
| Edge on EVA/PU | Melted | Not suitable | Torn / rough | Clean, square |
| Dust / fumes | Fumes | Fumes | Heavy dust | None |
| Foam range | Thin, laser-safe | Rigid EPS/XPS only | Rigid 3D carving | EVA/PE/PU, soft to thick |
| Speed | Slow on thick | Slow | Medium | Fast (5–8× laser) |
Use a laser only for thin, laser-safe foam with fine detail, and a router only for rigid 3D foam carving. For EVA, PE and PU sheet foam — packaging, footwear, seating — the cold knife is the clean, fast, dust-free choice.
Why Foam Makers Choose MNT
Clean, Cold Foam Edge
- No melt, no scorch, no dust — cuts EVA/PE/PU clean
- Square, ready-to-use edge straight off the machine
One Machine, Every Foam
- EVA, PE (EPE), PU, XPE and technical foams
- Knife, kiss-cut and creasing tools in one setup
No Dies, Free Sample Cut
- Cut from your file — no tooling cost, MOQ 1
- Send your foam for a free sample cut
Factory-Direct + CE·ISO
- Hangzhou Chaohan, 10,000㎡ factory, CE + ISO9001
- About MNT — direct pricing, no middleman
Frequently Asked Questions
Can you laser cut foam?
You can cut thin foam with a laser, but it melts EVA and PU edges and releases fumes. For clean, usable foam parts a cold oscillating knife is better; the laser suits only thin, laser-safe foam with fine detail.
Hot wire or oscillating knife — which do I need?
It depends on whether your foam is block or sheet. A hot wire melts a path through rigid EPS/XPS block and is the right tool for 3D carving, packaging blocks and architectural shapes. An oscillating knife cuts flat EVA, PE and PU sheet cold, holding a square edge and ±0.1 mm contour accuracy that a hot wire cannot reach. MNT builds the knife machines — if you are carving EPS block, a hot-wire supplier will serve you better.
What foam types can it cut?
EVA, PE (EPE), PU, cross-linked XPE and most technical foams — from thin cushioning to thick seating blocks, all from one machine.
How thick a foam can it cut?
Roughly 1–50 mm in a single pass depending on density, with a clean square edge. Send a sample and we confirm the exact setup.
Oscillating knife vs CNC router for foam?
The knife cuts soft foam clean with no dust; a router throws foam dust and tears soft EVA/PU. Use a router only for rigid 3D foam carving, and the knife for sheet foam.
Do I need a die?
No. Foam parts cut straight from your CAD file — no die, no tooling cost, and same-day design changes, ideal for prototypes and short runs.
How much does a foam cutting machine cost?
Price depends on working size and tool set; there is no per-shape die cost. Send your foam type, size and volume and we quote within 24 hours.
Foam Sheet Cutting — Technical Guides
Cutting foam raises real questions — which method suits EVA vs PU, how to avoid melted or dusty edges, and when a knife beats a laser or router. Our guides walk through clean, cold foam cutting.
Start Your Foam Sheet Cutting Project
Send your foam type (EVA/PE/PU), sheet thickness, part shapes and volume — we recommend the right knife cutter and reply within 24 hours.