Engineered thermal insulation components, cold storage doors, and industrial refrigeration equipment.
Shaanxi YuanShengHeTong Refrigeration Equipment Co., Ltd. (YSHT) is an ISO 9001 certified industrial leader, dedicated to the engineered manufacturing, structural design, and global export of high-grade insulated metal sandwich panels and comprehensive industrial cooling systems. Founded upon a legacy of technological innovation dating back to 1996, we specialize in high-density Polyisocyanurate (PIR) and Polyurethane (PUR) continuous core panels engineered for commercial buildings, ultra-low temperature cold rooms, and controlled cleanroom environments.
We maintain a unified, end-to-end service framework encompassing raw material specification, state-of-the-art continuous factory production, custom panel engineering, and international logistical distribution. Our professional domain covers structural thermal envelopes for global food chains, pharmaceutical warehouse operations, specialized agricultural packaging centers, and heavy-industry infrastructure.
Our production site spans over 60,000 square meters of highly automated facilities, featuring 4 standardized heavy-industry workshops equipped with computerized double-belt continuous injection systems, precise roll-forming rigs, and state-of-the-art curing tunnels.
An authoritative analysis of material chemistry, thermal efficiency index, and structural load characteristics.
We leverage high-index Polyisocyanurate (PIR) formulations with isocyanurate indices exceeding 250. This creates a highly cross-linked ring structure that offers superior thermodynamic stability, low thermal conductivity (λ ≤ 0.019 W/m·K), and excellent fire-retarding characteristics compared to conventional PUR core systems.
Our continuous double-belt production line features automated pre-heating, multi-stage pressure roller forming, and synchronized high-pressure polyurethane foaming. This ensures homogeneous core density (40-42 kg/m³), eliminating internal voids and preventing long-term delamination between metal skins.
We process premium hot-dip galvanized steel (Z120-Z275), galvalume (AZ100-AZ150), and specialized stainless steel (SUS304/316) skins coated with multi-layer PVDF or Plastisol finishes, rendering panels impervious to acid rain, saline marine environments, and industrial sanitization chemicals.
Unlike standard PUR (polyurethane) which uses stoichiometric ratios of polyol and isocyanate, our PIR (polyisocyanurate) is produced using a high index of isocyanate reacting in the presence of trimerization catalysts. This generates strong isocyanurate ring structures. When exposed to flame, this molecular ring carbonizes to form a highly stable char barrier, shielding the inner core layers from oxygen and slowing down heat propagation. This enables our OEM panels to easily meet Class B-s1, d0 fire ratings under EN 13501-1 standards.
Modern high-performance building envelopes require more than standard thermal protection. As global supply chains scale, OEM metal sandwich panels are vital structural components across multiple sectors:
Decades of manufacturing innovation, infrastructure scaling, and technical achievements.
Our founder initiated commercial operations focusing on industrial refrigeration equipment marketing, technical services, and on-site engineering installation.
Commissioned our first specialized Shaanxi production facility. Fabricated the initial generation of mechanical cam-lock polyurethane sandwich panels for modular cold storage applications.
Established our secondary Lanzhou manufacturing center, scaling our distribution capacity to comprehensively serve industrial infrastructure projects across Northwest China.
Relocated Shaanxi operations to an expansive 120-acre modern production base, deploying 8 specialized workshops to support growing international export volumes.
Integrated our first fully automated split-joint double-belt continuous production line, significantly increasing dimensional accuracy and foam core consistency.
Deployed our second advanced automatic continuous production line. Reached new heights in manufacturing throughput, quality assurance, and unit cost efficiency.
Committed to environmental stewardship. Redesigned production processes with eco-friendly pentane blowing agents, transitioning into a sustainable manufacturing plant.
Direct insight into our 60,000 square meter facility, continuous production lines, and quality control systems.
Meeting stringent global standards for fire safety, thermal performance, and manufacturing quality.
Quality Management System
EN 14509 Structural Standards
Flame Spread & Smoke Density
Eco-Friendly Blowing Agents
Environmental Standard
In an era of volatile material costs and global shipping challenges, Shaanxi YuanShengHeTong's state-of-the-art manufacturing setup offers foreign procurers, construction companies, and cold room operators an optimized balance of cost, speed, and reliability:
By manufacturing sandwich panels, cold storage doors, air evaporators, condensers, and compressor units under one roof, we eliminate intermediate supply margins. This vertical integration allows us to optimize fitment tolerances, simplify structural site design, and prevent mismatches between insulation panels and active cooling plants.
Located in Shaanxi, China, our facilities sit adjacent to direct logistics hubs, ensuring constant access to premium raw materials. We maintain long-term partnerships with top-tier steel manufacturers (such as Baosteel and Shougang Group) and raw polymer manufacturers (such as Wanhua Chemical and Huntsman). This ensures a steady supply of high-grade inputs and prevents raw material shortages from impacting customer delivery timelines.
Shipping structural building components internationally requires robust packaging. Our export packaging protocol uses heavy-duty plastic stretch wrapping, edge-protectors, and custom wooden pallets designed for container loading. This maximizes space utilization inside high-cube dry containers (40ft HQ), reducing per-square-meter transport costs and preventing damage during maritime transport.
Below is a standard specification sheet for our OEM metal sandwich panels, customizable to match project-specific structural load profiles and thermal targets:
| Specification Parameters | Polyurethane (PUR) Core | Polyisocyanurate (PIR) Core |
|---|---|---|
| Core Density Range | 38 - 42 kg/m³ | 40 - 45 kg/m³ |
| Thermal Conductivity (Initial) | 0.021 - 0.023 W/m·K | 0.018 - 0.020 W/m·K |
| Fire Class (EN 13501-1) | Class B2 (Flame-retardant) | Class B1 (Self-extinguishing) |
| Closed Cell Ratio | ≥ 95% | ≥ 97% |
| Standard Thicknesses | 50, 75, 100, 120, 150, 200 mm | 50, 75, 100, 120, 150, 200 mm |
Exporting structural construction components requires strict compliance with local building codes, fire regulations, and import standards. We offer support across multiple regions:
Essential purchasing, technical, and logistics information for global industrial procurement managers.
Insulated doors, seamless cladding wall panels, and high-efficiency commercial condensing units.
YuanShengHeTong
