Name: China Customized Cold Storage Rock Wool Panel Manufacturers Suppliers Factory - Wanxiang
Brand: Wanxiang
SKU: 306852624

Product Overview

Cold Storage Rock Wool Sandwich Panels are engineered insulation systems designed for cold storage buildings, refrigerated warehouses, and temperature-controlled industrial facilities requiring fire safety, energy efficiency, and long-term durability.
The panel consists of:

High-strength steel facings (PPGI / PPGL / Stainless Steel / Aluminum)
High-density rock wool core insulation

Technical Specifications

Item	Specification
Product	Cold Storage Rock Wool Sandwich Panel
Core Material	High-density Rock Wool
Density	100–140 kg/m³
Thickness	100 / 120 / 150 / 180 / 200 / 220 mm
Effective Width	950 / 1000 / 1150 mm
Length	Custom (up to 12m)
Steel Facings	PPGI / PPGL / Stainless Steel / Aluminum
Coating	PE / SMP / PVDF
Thermal Conductivity	~0.041 W/m·K
Fire Rating	Class A1 Non-combustible
Temperature Range	-40°C to +650°C
Joint System	Tongue & Groove / Hidden Fasteners

Key Advantages

Certified Fire Safety (Class A1)
The core consists of high-density basalt mineral fibers. It does not burn, melt, support combustion, or emit toxic smoke even under extreme structural fires. Fully complies with international strict building codes.

Optimized, Stable Energy Efficiency
By minimizing thermal bridging, our panels significantly reduce heat transfer between internal cold storage and external environments.
Lowers total refrigeration power consumption.
Reduces compressor cycling loads.
Maintains steady internal temperatures to safeguard cargo.

High Structural Integrity for Large Spans
The dense core structure provides excellent compressive and tensile strength, making the panels ideal for large-scale, high-ceiling cold storage warehouses. They resist deformation under intense internal/external thermal cycles.

Advanced Moisture & Hygiene Resistance
Hydrophobic Treatment: Mineral fibers are treated with water-repellent additives to ensure minimal moisture absorption.

Hygiene Compliant: Available with food-grade stainless steel or specialized coatings that resist mold, fungi, and chemical washdowns. Perfect for FDA-regulated environments.

Extended 20–30 Year Service Life
Engineered for industrial resilience. The heavy-duty steel skin combined with structurally stable rock wool ensures minimal sagging or aging over decades of operation.

Global Cold Chain Applications

Our insulated panels are widely specified for new construction and structural retrofits in:

Meat & Poultry Processing

Freezing tunnels and cold processing halls.

Seafood & Aquaculture Storage

Deep-freeze facilities (-40°C).

Pharmaceutical Cold Chains

Precision temperature-controlled cleanrooms.

Dairy & Ice Cream Production

Hygiene-critical cold rooms.

Refrigerated Logistics Hubs

Large-scale EPC automated distribution centers.

Agricultural & Fruit Storage

Controlled Atmosphere (CA) cold rooms.

Comprehensive System Design Support

We don't just ship panels; we act as your technical solution partner. Our engineering department provides full-lifecycle support for your tender submission and project execution:

Thermal Calculations & Thickness Recommendations: Tailored to your project's specific climate zone and target internal temperature.

Joint & Sealant System Engineering Guidance: To prevent thermal bridging and moisture ingress.

Energy Efficiency Optimization: Comprehensive structural advice to reduce the cooling load and electricity costs of the HVAC systems.

BIM & Shop Drawing Assistance: Panel layout planning to minimize on-site cutting, scrap rates, and installation time.

Recommended Thickness Selection

Application	Recommended Thickness
Cold storage (-18°C)	100–150 mm
Deep freeze (-25°C)	120–200 mm
Food processing workshop	75–100 mm
Logistics cold room	50–100 mm

Continuous Quality Assurance

Raw Material Inspection

Structural steel tensile testing and rock wool density/hydrophobicity verification.

Thermal & Fire Testing

Batch-tested for thermal conductivity and fire resistance compliance.

Dimensional Precision

Regular checks on panel flatness, thickness, and joint alignment.

Export Packaging Check

Secure loading configurations designed to prevent transit damage.

Packaging & Container Logistics

We ensure that your materials arrive at your construction site in flawless condition, no matter the shipping distance.

Surface Protection

Heavy-duty waterproof protective PE film on both steel facings.

Reinforced Packing

Panels are bundled on high-density foam pallets with steel frame reinforcement for container ocean shipping.

Loading Optimization

Maximum volume utilization for 40ft HQ containers to minimize ocean freight costs.

Clear Project Labeling

Custom labeling by panel type, length, and wall/ceiling designation for fast on-site sorting.

Average Delivery Lead Time

15–30 days (depending on customization requirements and project volume).

Why Wanxiang

20+ years experience in steel structure & insulation panel systems

Engineering-oriented production capability

Stable OEM / ODM supply for global distributors

Strong support for technical drawings and project design

Proven export supply chain reliability

Certificates

Frequently Asked Questions

Q: Is rock wool truly suitable for cold storage insulation given that it is a mineral fiber?

A: Yes, absolutely. For facilities where fire safety compliance is paramount, rock wool is the premier choice. While standard rock wool can absorb moisture, Wanxiang uses high-density, hydrophobically-treated mineral wool. Combined with our vapor-tight tongue-and-groove steel joints, moisture is effectively blocked from entering the core, ensuring stable, long-term thermal insulation.

Q: What fire certification do your cold room panels carry?

A: Our panels achieve an A1 Class Non-combustible rating according to international standards such as EN 13501-1 and ASTM E84. They emit zero toxic smoke and do not contribute to fire spread, which can significantly reduce facility insurance costs.

Q: What panel thickness do I need for a freezer room vs. a chiller room?

A: Generally, we recommend 100mm to 120mm for chiller rooms (0°C to +4°C) and 150mm to 220mm for deep-freeze warehouses (-18°C to -40°C). Our engineering team can provide precise thickness recommendations based on your project's specific thermal load.

Q: Are your panels certified for food-grade and pharmaceutical facilities?

A: Yes. We offer premium Stainless Steel (SUS304/316) or high-durability PVDF coatings for the steel skins. These configurations comply with international hygiene regulations (such as HACCP or FDA requirements), providing high resistance to mold, bacteria, and aggressive chemical sanitizers.

Q: Can Wanxiang customize panel lengths and widths for large EPC projects?

A: Yes. We offer standard effective widths of 950mm, 1000mm, and 1150mm. Panel lengths can be custom-cut up to 12 meters to precisely fit your structural steel frame, reducing on-site cutting and joint sealing.