Professional PU Foam Insulation Box Core Manufacturer | Julisheng New Material Technology - Your Cold Chain Insulation Core Solution
I. Product Positioning: High-Performance Cold Chain Insulation Core
Dongguan Julisheng New Material Technology Co., Ltd. specializes in the research and development and production of high-density PU foam insulation box cores, providing core insulation components for cold chain transportation, medical refrigeration, and fresh food distribution to global wholesalers.
Utilizing German Hennecke high-pressure foaming technology and food-grade raw materials, we ensure a closed-cell ratio of ≥95% (third-party testing report), effectively preventing cold air loss.
Based on independent testing data demonstrating a closed-cell ratio of ≥95% (in compliance with ASTM D6226), this results in a thermal conductivity as low as 0.022 W/(m·K) (better than the industry average of 0.028), extending insulation time by 30%.
II. Four Core Advantages Enable Wholesale Customers to Reduce Costs and Increase Efficiency
Extended Insulation Time
Through molecular structure optimization, the box core forms a uniform honeycomb closed-cell layer, effectively slowing heat conduction. Customizable density options (35kg/m³-55kg/m³) meet the full temperature range of -40°C to 60°C.
Based on: Measured temperature rise of ≤5°C within 72 hours in a -20°C environment with dry ice (third-party environmental chamber testing, in accordance with ISTA 7D).
Extremely Lightweight Design
The scientifically optimized density and strength ratio reduces weight by 40% compared to traditional EPS materials while maintaining the same compressive strength (≥150kPa), significantly reducing customer logistics costs.
Based on: Deformation rate under 150kPa compressive strength test (GB/T 8813 standard) is <5%, and transport damage rate is reduced by 60%.
Environmentally friendly and durable: The raw materials are FDA food contact certified and RoHS environmental standards, and the fluorine-free foaming process complies with the Montreal Protocol. Weather resistance is improved by 50%, and cracking will not occur even with repeated temperature fluctuations.
Compliant: 300 cycles of -30°C to 70°C thermal cycling (referring to GB/T 8811), maintaining 100% structural integrity.
Modular and Rapid Integration
Patented designs, including pre-embedded injection-molded snap-in slots and self-adhesive seams, allow customers to assemble the box in just 5 minutes, tripling production efficiency.
III. Comprehensive Product Matrix, Covering Mainstream Needs
Standard Box Core: 12 universal sizes (20L-120L), with 72-hour delivery.
Specially Shaped Core: Custom-shaped cavities specifically designed for medical devices and precision instruments (CNC precision cutting with a tolerance of ±0.5mm).
Composite Reinforced Core: Built-in fiberglass mesh/aluminum alloy frame, capable of supporting loads up to 200kg.
Flame-Retardant Specialty Core: UL94 V-0 certified, suitable for chemical and battery transportation.
