Shaanxi YuanShengHeTong Refrigeration Equipment Co., Ltd.
Founded in 1996, our journey in the refrigeration industry spans over 27 years. We have evolved from a regional equipment supplier into a global powerhouse specializing in CE Certified PU Foam Core Sandwich Panels. Our expertise isn't just in manufacturing; it's in the precision engineering of thermal boundaries.
Operating a massive 60,000 square meter production base with 4 standardized workshops, we house 8 advanced production lines. Our team of 180+ skilled professionals and 10 dedicated QC experts ensure every panel meets the rigorous standards of international trade.
We provide more than products. We deliver integrated solutions: Project Design, Precision Manufacturing, Professional Installation, and Global After-Sales Support. From fruit storage to medical logistics, our panels are the backbone of modern cold chains.
Years Experience
Sqm Factory Area
Advanced Lines
CE Compliance
Decoding the future of sustainable industrial construction
The global construction industry is shifting towards PIR (Polyisocyanurate) due to its superior fire resistance (B1/B2 Grade) and lower thermal conductivity compared to standard PUR. Our factory is pioneering the use of eco-friendly blowing agents to reduce GWP (Global Warming Potential).
With the rise of e-commerce and pharmaceutical breakthroughs, the demand for "High-R Value" insulation is skyrocketing. Global procurement teams are no longer looking for just "cheap" panels; they are seeking "thermal efficiency" to lower long-term OpEx (Operating Expenses).
CE Certification is the passport for European markets. Our panels undergo rigorous testing for mechanical strength, fire safety, and thermal consistency, ensuring they meet the EU Construction Products Regulation (CPR).
The evolution of PIR/PUR sandwich panel technology
Implementation of automatic double-crawler production lines for uniform foam density and seamless adhesion.
Transitioning majority of production to PIR cores to achieve FM Global equivalent standards and B1 fire ratings.
Developing "Cam-Lock" and "Tongue & Groove" systems for rapid deployment in remote locations (Cold Storage-in-a-Box).
A journey of continuous innovation since 1996








Expert answers for procurement professionals
While both use polyurethane, PIR (Polyisocyanurate) uses a higher ratio of isocyanurate, resulting in superior fire resistance and structural stability at high temperatures, usually achieving B1 or B2 ratings.
CE Certification ensures the panels comply with European safety, health, and environmental protection requirements. It involves rigorous testing for thermal conductivity, fire reaction, and tensile strength.
For optimal thermal insulation and structural integrity, a density of 40-42 kg/mΒ³ is standard. This provides the best balance between cost and R-value (Thermal Resistance).
With our 8 production lines and 60,000 sqm facility, we typically fulfill large-scale orders within 15-25 days, depending on custom specifications like panel thickness and skin material.