With foam knife card hollow box Size: customer demand, customized production Material: anti-static/conductive hollow board; anti-static/conductive EVA foam Foam density: 38°, 50°, 60° Anti-static coefficient: 1*10^6-10^9 Ω Conductivity: 1*10^3-10^5 Ω Product description: All corners of the box are made of plastic edge guards, corner guards are reinforced, sturdy and beautiful, economical and durable. The knife card is made of foamed one-piece stamping combination, and can be equipped with a full hollow box or other turnover box, which is used to store precision parts and products, and has a good protection effect on the products. (Accessories can be customized on demand) Accessories: plastic edge strips, handles, edge protectors, corner protectors, foam Others: screen printing, sticking product to express card bag

Project Background Our client, a leading manufacturer in the semiconductor and server industry, was looking for a tailored packaging solution for internal factory circulation. The packaging needed to be durable, anti-static, shock-resistant, compression-resistant, cost-efficient in logistics, and reusable. Customer Requirements During daily PCBA circulation, the client wanted packaging that could: · Provide stronger load-bearing performance for heavier assemblies. · Allow more compartments while keeping dividers as slim as possible to maximize space utilization. · Ensure stable anti-static performance for sensitive PCBA components. · Be efficient in transportation, with secure stacking and reusable design. YUFA Polymer Solution We developed a custom ESD honeycomb box using 4mm anti-static honeycomb sheets (1200g/m²). · Box Dimensions: 400 × 300 × 220 mm · Internal Structure: 48 compartments with a single-layer divider design · Capacity & Strength: Load capacity up to 30 kg, providing enhanced protection for PCBA assemblies · Material Properties: Black, permanent ESD (surface resistance: 10⁴–10⁹ Ω) · Stackability: Designed to be stackable with or without lid · Production & Delivery: 100 units, completed within 7 days Results & Customer Feedback · Performance: The solution delivered improved load capacity, reliable anti-static protection, and effective compartmentalization. · Transportation: Each box was packed with pallet + EPE foam + stretch film, ensuring safe delivery with zero damage. · Customer Satisfaction: The client recognized the thoughtful design, which balanced durability and space efficiency. They expressed strong satisfaction and confirmed plans for repeat orders.