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Modern sandwich roofing sheets have evolved beyond simple protection. Utilizing PIR (Polyisocyanurate) and PU (Polyurethane) cores, these materials now offer R-values that significantly reduce HVAC energy consumption in large-scale warehouses and factories.
The global shift towards PIR cores is driven by superior fire performance. Unlike traditional EPS, PIR charring properties provide a critical safety barrier, meeting stringent international building codes (FM Global and CE standards).
Sustainability is no longer optional. Modern OEM factories are integrating recycled steel and zero-ODP (Ozone Depletion Potential) blowing agents to align with global Net-Zero initiatives.
Founded in 1996, Shaanxi YuanShengHeTong Refrigeration Co., Ltd. has established itself as a professional titan in the insulation panels and refrigeration equipment industry. With over 27 years of deep-sector experience, we provide more than just products; we deliver turnkey one-stop project solutions.
Our expertise spans project design, precision manufacturing, professional installation, and proactive after-sales service. We specialize in refrigeration solutions for the fruit and vegetable sectors, food industry, large supermarkets, hospitality, medical logistics, and more.
Our 8 advanced workshops utilize automatic split-joint production lines. This reduces human error, ensures millimeter-perfect precision in sandwich sheet interlocking, and boosts output to meet massive global demand without compromising quality.
Located in the industrial heart of Shaanxi, we leverage a robust local supply chain for raw steel and chemical components. This allows us to maintain stable lead times even during global market fluctuations.
With a dedicated 10-person QC team, every batch of PIR/PU sandwich panels undergoes rigorous testing for density, compressive strength, and thermal conductivity before being exported.
Essential for pharmaceutical and perishable food storage. Our panels provide the thermal hermeticity required to maintain constant ultra-low temperatures.
Fruit and vegetable ripening rooms and processing plants benefit from the easy-to-clean, hygienic surfaces of our insulated wall and roof panels.
For airplane hangars, automotive factories, and textile mills, our sandwich roofing sheets provide quick installation and long-term structural durability.
While both offer excellent insulation, PIR (Polyisocyanurate) is a fire-improved version of PU (Polyurethane). PIR has higher thermal stability and better resistance to fire spread, making it the preferred choice for insurance-compliant industrial buildings.
With high-quality galvanized steel skins and proper coating (like PVDF or HDP), our sandwich sheets can last 25-30 years with minimal maintenance, even in harsh coastal or industrial climates.
Yes. As a direct factory, we customize the thickness (50mm to 200mm), length (up to 11.8m for container loading), and core density based on your specific project requirements.
Absolutely. We hold CE certifications for our sandwich panels and refrigeration units, ensuring they meet the safety, health, and environmental protection standards of the EEA.
Thanks to our dual automatic production lines, standard orders are typically processed within 15-20 days. Large-scale projects are scheduled to match your construction timeline.
We provide comprehensive technical drawings and video installation guides. For large-scale projects, we can also offer remote engineering consultation to ensure structural integrity.
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YuanShengHeTong