EPS Sandwich Wall Panel
Energy-Efficient Steel Building Enclosure System | Wanxiang
Wanxiang EPS Sandwich Wall Panels are factory-engineered wall cladding systems designed for steel structure buildings that require fast installation, stable thermal insulation, and optimized construction cost. The panels are produced through continuous lamination of pre-painted galvanized steel sheets and EPS foam core, ensuring consistent geometry and performance across large-scale export projects.
This system is widely used as a replacement for traditional masonry walls and site-installed insulation systems in industrial and commercial steel buildings.
Engineering Specifications
|
Item |
Specification Range |
|
Panel Thickness |
50 / 75 / 100 / 150 mm |
|
Steel Thickness |
0.3 – 0.6 mm |
|
EPS Density |
8 – 20 kg/m³ |
|
Thermal Conductivity |
0.034 – 0.041 W/m·K |
|
Max Length |
Up to 12–15 meters (project based) |
|
Joint System |
Tongue & groove / concealed screw system |
|
Surface Finish |
Flat / embossed / protective coated surface |
Engineering Performance Characteristics
Stable insulation performance
EPS core provides continuous insulation layer, reducing thermal bridging caused by traditional multi-layer site construction.
Lightweight structural system
Reduced wall load helps optimize steel frame size and foundation cost in large-span buildings.
Fast dry installation system
Panels are installed directly on steel structures using self-tapping screws, eliminating curing time and wet construction delays..
Controlled dimensional accuracy
Factory production ensures consistent panel thickness and joint alignment, improving installation efficiency on site.
Engineering Applications
Wanxiang EPS panels are engineered for large-span, rapid-assembly steel structures where structural weight reduction, predictable insulation, and strict budget ceilings are critical.
Logistics & Distribution
10,000–50,000 m² mega-warehouse enclosures.
01
Industrial Plants
Manufacturing facilities, heavy-equipment workshops, and processing plants.
02
Controlled Environments
Moderate cold storage and chilling facilities (0°C to -25°C).
03
Agricultural Infrastructure
Agro-storage, poultry facilities, and climate-sensitive processing hubs in high-humidity zones.
04
Turnkey Modular Systems
EPC prefabricated building envelopes, temporary site offices, and industrial mining camps.
05
Thickness Selection Guide
50 mm Thickness
Interior partition walls, factory office divisions, and internal cleanroom separations.
75 mm Thickness
Standard industrial warehouses, dry-goods logistics parks, and regional distribution centers.
100 mm Thickness
Heavy industrial workshops, manufacturing plants, and high-insulation commercial facilities.
150 mm Thickness
Medium-temperature cold storage systems, agricultural processing hubs, and severe climate zones.
EPS vs PU vs Brick Wall
|
Performance Factor |
EPS Panel |
PU Panel |
Brick Wall |
|
Installation method |
Dry installation |
Dry installation |
Wet construction |
|
Construction speed |
Fast |
Medium |
Slow |
|
Total construction cost |
Lower |
Higher |
High |
|
Structural weight |
Lightweight |
Lightweight |
Heavy |
|
Thermal insulation |
Medium level |
High level |
Low |
|
On-site labor demand |
Low |
Medium |
High |
Technical Quality Control
Substrate Calibration: Steel coils undergo automated leveling and stress-relieving before geometric profiling.
Core Material Precision: EPS blocks are hot-wire cut with micro-tolerances to prevent gap formation and subsequent thermal bridging.
Void-Free Bonding: Continuous multi-point adhesive application under calibrated pressure ensures 100% surface-to-surface adhesion, eliminating core-skin delamination risks.
Joint Interlocking Geometry: Millimeter-accurate forming of the tongue-and-groove profile ensures tight, weather-proof site installation.
Batch Verification: Critical parameters-including cross-sectional flatness, core density uniformity, and joint alignment-are verified pre-packaging.
Procurement Workflow
To ensure seamless structural integration and compliance with localized building codes, the technical team at Wanxiang conducts a thorough engineering review prior to manufacturing:
Drawing & BOQ Submission: Architectural CAD layout / Section details / Bill of Quantities.
Engineering & Code Review: Thermal targets / Wind-load calculations / Fire rating validation (B2/B1/EN standards).
Commercial & Material Proposal: Steel coating spec (Zinc coating mass, PVDF/PE) / Optimized panel lengths.
Technical Sign-Off & Production: Shop drawing approval leading to automated continuous line manufacturing.
Containerized Export Logistics: Optimized loading and global shipping.
Global Supply Chain and Export Logistics
Minimum Order Quantity (MOQ)
Full container-load support (20GP / 40HQ) to maximize ocean freight cost-efficiency.
Production Lead Time
10 – 25 working days (subject to order volume and customized coil scheduling).
Export-Grade Packaging
Heavy-duty seaworthy packaging featuring protective surface film and reinforced steel pallet frames to prevent transit damage.
Logistics Optimization
Customized 3D container loading layouts provided prior to dispatch to ensure maximum volumetric utilization.
Why Global Buyers Choose Wanxiang
International buyers choose Wanxiang because we focus on:
Stable manufacturing capacity for steel building materials
Consistent panel quality across large production batches
Engineering-based communication for project requirements
Experience in export supply for industrial construction projects
Certificates
FAQ
Q: Can EPS sandwich panels be used in cold storage?
A: Yes, but mainly for medium-temperature cold storage environments. For deep freezing, PU or rock wool is recommended.
Q: What is the lifespan of EPS sandwich panels?
A: Typically 15–25 years depending on environment and coating system.
Q: How many panels can fit in a 40HQ container?
A: It depends on thickness and length; we provide loading optimization before shipment.
Q: Can EPS panels be customized in color?
A: Yes, we support RAL color customization for steel surface.
Q: Is EPS waterproof?
A: EPS core is closed-cell but not fully waterproof; steel surface provides external protection.
Q: What is the main advantage of EPS panels?
A: Cost efficiency, lightweight structure, and fast installation.
Request a Quotation
To ensure accurate pricing and engineering confirmation, Wanxiang supports fast technical evaluation based on project drawings or basic requirements.
We recommend submitting the following information for a quicker quotation:
Building type (warehouse / factory / cold storage, etc.)
Required panel thickness
Steel structure drawings (if available)
Project location and climate conditions
Estimated order quantity or total wall area
Our engineering team reviews technical details before quotation to ensure compatibility with your structural design.
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