2026-09-21 · Équipe éditoriale KeXinMaterials
Intérieur Mousse : Pick-and-Pluck vs CNC Routé vs EVA — Comparaison B2B 2026
L'intérieur en mousse est la personnalisation la plus impactante pour les caisses de protection B2B. La mousse PE Pick-and-Pluck est la moins chère mais imprécise; la mousse PU CNC routée est précise mais lente; la mousse EVA est intermédiaire.
3 types de mousse en un coup d'œil
Pick-and-pluck PE foam, CNC routed PU foam, and EVA foam cover 95% of B2B case interior demand. Each fits different use cases: pick-and-pluck for prototyping, CNC for precision, EVA for production.
Pick-and-pluck foam (PE — polyethylene): pre-cut 1cm x 1cm grid. Buyer manually plucks cubes to fit shape. Cost USD 5-15 per case (cheap). Lead time 0 days (stock). Limitation: imprecise fit, cubes fall out over time.
CNC routed foam (PU — polyurethane, sometimes PE): CAD-designed, machine-cut to exact geometry. Cost USD 50-200 per case (mid-high). Lead time 7-15 days (custom). High: precision fit, repeatable, presentable.
EVA foam (ethylene-vinyl acetate): die-cut or heat-formed. Cost USD 20-50 per case (mid). Lead time 7-15 days. Mid: presentable + decent precision + cheaper than CNC PU. Common in tool cases.
For B2B procurement, choose based on: equipment value (high → CNC), order volume (low → pick-and-pluck), presentation (high → EVA or CNC), budget (low → pick-and-pluck).
Mousse PE Pick-and-Pluck en détail
Pick-and-pluck is the cheapest and fastest foam option. Best for low-volume prototyping and basic protection.
Material: polyethylene (PE) foam, density 30-33 kg/m³. Pre-cut grid pattern with 1cm cubes. Buyer plucks cubes by hand to fit equipment shape. Available in 4-6 colors.
Cost: USD 5-15 per case (lowest). Stock foams ship same-day; custom foam only needs plucking step.
Lead time: 0 days (if stock foam) or 1-3 days (custom plucking). Fastest option.
Protection: medium. PE foam 30-33 kg/m³ density provides shock absorption for typical 25G impact. Less protective than CNC PU foam 50-80 kg/m³.
Presentation: low. Visible 1cm grid pattern. Equipment does not fit perfectly. Industrial use, not for camera/medical equipment.
Best for: prototyping (before CNC tooling), low-volume orders (under 50 cases), basic industrial protection, replacement foam.
Mousse PU découpée CNC en détail
CNC routed polyurethane foam is the premium choice for B2B precision protection. Used by Pelican, military, medical, drone industries.
Material: polyurethane (PU) foam, density 50-80 kg/m³ (anti-static available). CAD → G-code → CNC hotwire or mill. Custom cavity geometry for each equipment item.
Cost: USD 50-200 per case (highest). Custom design adds USD 300-2000 one-time tooling per SKU. Multi-cavity foam for camera/drone/medical equipment fits precisely.
Lead time: 7-15 days (custom). Faster on repeat orders (existing CAD).
Protection: highest. PU foam 50-80 kg/m³ density absorbs 50G+ impact. Anti-static (ESD) variants for electronics. Conductive variants for explosive environments.
Presentation: highest. Smooth cavity walls, custom labels (laser-etched), professional appearance. Standard for camera/broadcast/medical/military.
Best for: precision equipment (camera, drone, medical, military), high-value payload (>USD 10,000), repeated orders (>100 cases), professional B2B brands.
Mousse EVA en détail
EVA foam is the mid-range option. Heat-formed or die-cut. Common in tool cases, consumer electronics, mid-range camera cases.
Material: ethylene-vinyl acetate (EVA) foam, density 30-50 kg/m³. Available in laminated sheets (multiple densities), die-cut shapes, or heat-formed 3D shapes.
Cost: USD 20-50 per case (mid). Lower than CNC PU foam. Higher than pick-and-pluck PE foam.
Lead time: 7-15 days (die-cut). 10-20 days (heat-formed 3D).
Protection: medium-high. EVA foam 30-50 kg/m³ is denser than PE foam but less dense than CNC PU foam. Good for tools and consumer electronics.
Presentation: medium-high. Smooth surfaces, presentable colors, brand-able. Common in tool cases (Stanley, DeWalt, Bosch).
Best for: tool cases, consumer electronics, mid-range camera cases, OEM brands wanting good presentation without CNC premium.
Matrice de comparaison à 5 critères
Score each criterion 1-3 across the three foam types. Highest total wins. Score 1 = poor fit, 2 = acceptable, 3 = excellent fit.
Criterion 1 — Equipment value: under USD 1,000 = pick-and-pluck OK. USD 1,000-10,000 = EVA or CNC PU. USD 10,000+ = CNC PU.
Criterion 2 — Order volume: under 50 cases = pick-and-pluck. 50-500 = EVA. 500+ = CNC PU (amortised tooling).
Criterion 3 — Presentation need: industrial only = pick-and-pluck. Tool/consumer = EVA. Camera/medical/military = CNC PU.
Criterion 4 — Lead time: same-day = pick-and-pluck. 7-15 days = EVA or CNC PU. 15+ days = CNC PU (full custom).
Criterion 5 — Budget: under USD 10/case = pick-and-pluck. USD 10-50 = EVA. USD 50-200 = CNC PU.
Mousses antistatiques + ESD (variantes spéciales)
For electronics, semiconductor, and explosive environments, anti-static (AS) and conductive foam are required. Available in PU and PE variants.
Anti-static (AS) foam: surface resistivity 10^9-10^11 Ω. Prevents static buildup. Standard for electronics packaging. Available in PU and PE. Adds USD 5-15 per case.
Conductive foam: surface resistivity 10^3-10^5 Ω. Full ESD protection. Required for explosive environments (ATEX zones). Available in PU foam + carbon black. Adds USD 20-50 per case.
Compliance: ANSI/ESD S541 (Packaging Materials for ESD Sensitive Items). IEC 61340-5-1 (ESD protection). Required for semiconductor, electronics, explosive environments.
For B2B buyers: specify AS foam for general electronics. Specify conductive foam for ATEX/IECEx explosive environments. Specify CNC PU AS foam for high-value electronics.
Recommandation d'approvisionnement B2B
Below is the typical 2026 B2B foam recommendation by use case.
Drone case (1-5 kg payload, USD 1,000-10,000 drone): CNC PU foam with custom cavity for drone body + remote controller + batteries + accessories. Anti-static variant if drone is for electronics / PCB testing.
Camera / photography (USD 5,000-50,000 gear): CNC PU foam with custom cavity for each lens / body / accessory. Laser-etched labels for professional presentation.
Tool case (industrial / automotive): EVA foam die-cut. Laminated 30-50 kg/m³ density. Mid-range cost + good presentation. Common in Stanley, DeWalt, Bosch tool cases.
Medical device case (USD 5,000-50,000): CNC PU foam with cleanable surface (closed-cell PU). Anti-microbial additive on request. Smooth surfaces for hospital cleaning.
Military / tactical (USD 1,000-50,000): CNC PU foam MIL-spec. Black, anti-static, with Velcro / strap systems for accessory retention. Often multiple foam layers.
Capacité mousse KeXinMaterials
KeXinMaterials offers all 3 foam types + custom design + anti-static + conductive + MIL-spec. EXW Shenzhen / FOB Shenzhen / FOB Ningbo only.
Pick-and-pluck PE foam: stock in 30/33 kg/m³ density. 4 colors. Same-day ship from Shenzhen.
CNC routed PU foam: 50/60/70/80 kg/m³ density. Anti-static + conductive + closed-cell variants. CAD design free or USD file accepted.
EVA foam: 30-50 kg/m³ density. Die-cut or heat-formed. Multi-layer lamination for hard + soft layered foam.
MOQ: pick-and-pluck 10 cases. CNC PU 50 cases. EVA die-cut 100 cases.
Lead time: pick-and-pluck 0-3 days. CNC PU 7-15 days (custom). EVA die-cut 7-15 days.
Points clés
- Mousse PE Pick-and-Pluck : USD 5-15/caisse, 0 jour délai, prototypage / petit volume
- Mousse PU CNC routée : USD 50-200/caisse, 7-15 jours, précision / haute valeur / marque
- Mousse EVA : USD 20-50/caisse, 7-15 jours, caisses à outils / caméra milieu de gamme
- Mousse antistatique AS : USD 5-15/caisse prime, conformité ANSI/ESD S541
- Mousse conductrice : USD 20-50/caisse prime, environnements explosifs ATEX/IECEx
FAQ
Quel type de mousse est le meilleur pour une commande de 1000 caisses caméra ?
Pour 1000+ caisses caméra, la mousse PU CNC routée est le meilleur choix. Bien que le coût par caisse soit USD 50-200, l'outillage unique (USD 300-2000 par SKU) est réparti sur 1000+ unités.
Quelle est la différence entre mousse PE et mousse PU ?
Mousse PE (polyéthylène) : densité 30-33 kg/m³, moins chère, plus rigide. Mousse PU (polyuréthane) : densité 50-80 kg/m³, plus chère, plus absorbante. La mousse PE est typiquement Pick-and-Pluck. La mousse PU est typiquement CNC routée.
La mousse antistatique peut-elle prévenir les dommages ESD ?
Oui. La mousse antistatique (AS) a une résistivité de surface de 10^9-10^11 Ω qui prévient l'accumulation statique. La mousse conductrice a 10^3-10^5 Ω qui dissipe activement la charge statique.
La mousse Pick-and-Pluck convient-elle aux équipements médicaux ?
Non. La mousse PE Pick-and-Pluck ne convient pas aux équipements médicaux : (1) ajustement imprécis. (2) structure à cellules ouvertes peut héberger des bactéries. (3) motif de grille visible non nettoyable en milieu hospitalier.
Combien de temps dure l'outillage mousse PU CNC ?
L'outillage mousse PU CNC (fichier CAD + G-code) dure typiquement toute la vie du SKU. Stockage en fichier numérique.
Quel est le MOQ pour les inserts mousse CNC personnalisés ?
Le MOQ pour les inserts mousse PU CNC personnalisés varie : petites usines 10-50 caisses, moyennes 50-100 caisses, grandes 100-500 caisses. Chez KeXinMaterials : MOQ mousse PU CNC 50 caisses.