Shenyang Qiangyun Color Steel & Steel Structure Co., Ltd. is one of the most reliable manufacturers and suppliers of 75mm sandwich panel rock wool wall in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Welcome to wholesale advanced 75mm sandwich panel rock wool wall in stock here from our factory. Also, pricelist is available.

Available in corrugated and flat (clean-room) profiles with 0.3–0.8 mm anti-corrosion weather-resistant steel, it supports fast modular assembly and lower build cost. Rock wool panels are a leading choice in the growing global market thanks to balanced performance and value. We provide one-stop customization of sizes, steel grade and RAL color, with automated production for stable quality and on-time delivery.

Core Advantages

Our panels feature Class A1 non-combustible rock wool core for premium fire safety, paired with anti-aging steel skins for harsh outdoor use. It delivers up to 30 dB sound insulation and effective thermal insulation to cut energy consumption. Modular design slashes construction time by 60% vs masonry, with full customization of size, steel grade and RAL colors. Follow installation notes for waterproofing, PPE and thickness selection for frigid zones.

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Specifications at a Glance

Parameter	Specification
Product Name	75mm Rock Wool Sandwich Wall Panel
Material / Core	Basalt rock wool (density 50–150 kg/m³; case spec 100 kg/m³)
Metal Skin	Color-coated steel, anti-corrosion & weather-resistant
Skin Thickness	0.3 – 0.8 mm (case spec 0.45 mm)
Panel Thickness	75 mm (custom 50–250 mm)
Effective Width	950 / 1150 mm
Panel Length	2.0 – 11.9 m (fits 40-ft container; longer on request)
Color	Custom RAL color
Fire Rating	Non-combustible, Class A (A1, EN 13501-1)
Fire Resistance	0.5 h / 1 h / 2 h / 4 h
Thermal Conductivity (λ)	≤ 0.040 W/(m·K)
Compressive Strength	85 – 105 kPa
Shear Strength	60 – 80 kPa
Sound Insulation (Rw)	30 – 50 dB (rises with thickness)
Profile	Corrugated or flat (clean-room)
Eco-friendly	Yes
Brand	QY
Place of Origin	China
Design Style	Modern industrial / clean-room wall
Usage	Exterior wall, prefab house, cold room, office, hospital, school
After-sale Service	Online technical support

How to Choose Thickness

Select proper thickness according to scenarios: 50mm for civil/residential walls; 75mm for standard walls; 50–100mm for large roofs; 120–150mm for ultra-cold regions to meet thermal and structural requirements.

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Customization

Our panels feature high-density basalt rock wool core (100 kg/m³ for 75mm wall version), Class A non-combustible and dimensionally stable, paired with 0.3–0.8mm anti-aging, weather-resistant metal skins. Full RAL colors and custom profiles, steel gauges & lengths are available, with optional upgrades for coastal humid environments.

Application Scenarios

Exterior walls of factories, warehouses, workshops
Prefab houses, office buildings, hospitals, schools
Cold rooms and temperature-controlled buildings
Clean-room and hygiene-sensitive facilities (flat profile)

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Project Reference

This 3,800 m² electronics workshop in Mexico adopted our 75 mm rock wool wall panels. It achieves 30 dB sound insulation with 60% shorter construction time. Installation finished in only 12 days, and panels passed fire inspection at the first trial. Compared with traditional walls, the system ensures reliable fire & acoustic performance and cuts total cost by 28%.

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Customization & OEM

One-stop customization of dimensions, steel grade and RAL color; automated line ensures stable quality and on-time delivery. OEM / ODM supported.

Certification & Compliance

Quality Control & Capacity

Closed-loop QC from incoming material to finished goods: rock wool density and skin weather/corrosion checked on arrival; in-process monitoring of thickness, bond and flatness; outgoing sampling of fire, thermal, waterproof and dimensional traits. Per-batch inspection report available; third-party testing supported. Daily capacity: 20000 m²;

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After-sales & Warranty

Online technical support; free samples available; pre-sales quotation and scheme optimization. Warranty:10-20 years - state coverage.

Contact

QY is a manufacturer of insulated sandwich panels (EPS / Rock wool / PIR / PUR) for wall and roof. Welcome to contact us.

FAQ

Q1: What is your production lead time?

A: 10–15 days for custom orders; 5–7 working days for standard orders.

Q2: What is the MOQ?

A: MOQ starts at 1 m², subject to confirmation.

Q3: What shipping methods and trade terms can you offer?

A: Shipping: Sea / Air / Multimodal. Trade terms: FOB, CIF, DDP per Incoterms.

Q4: How are the panels packed for export?

A: Export waterproof film + corner protectors + wrapping.

Related Sandwich Panel Products

EPS panels are especially applicable to factory and warehouse projects; PIR panels have a higher fire rating, PU panels are defined by ultra-low thermal conductivity, and rock wool panels provide A1 non-combustible fire resistance. For this reason, we provide multiple types of sandwich panels to meet customers' different selection demands.