What Is the Mold Cost Share of Custom UHPC Components? Mold Economics and Qinglong Group's Cost Optimization Practices

The proportion of mold cost in the total cost of custom UHPC components is influenced by three factors—design complexity, production batch size, and mold material—and typically fluctuates between 15% and 40%. Based on 28 years of customized production experience, Qinglong Group has distilled the rules of mold cost control: simple designs have mold costs of ≤15% (e.g., flat panel molds), medium-complexity designs account for 20-30% (e.g., single-curved panel molds), and high-complexity designs account for 30-40% (e.g., double-curved openwork molds). In the "Red Lantern" double-curved cornice project for the Wuhan Han Show Theatre, CNC machining and modular design optimized the mold cost to 28% of the total, 12% lower than the industry average. Mold cost is not merely an economic indicator but a reflection of technical investment, directly affecting component precision and production efficiency.

Design Complexity Is the Dominant Cost Factor

Flat panel molds use steel molds, costing about RMB 800-1,000/m² and accounting for 15%; double-curved panels require five-axis CNC-machined tooling board molds, costing RMB 2,000-3,000/m² and accounting for 35%. Through parametric design, Qinglong Group breaks complex curved surfaces down into repeatable units, reducing the number of non-standard molds. In the wave-shaped cornice project for China Resources MixC in Nanning Wuxiang, unit standardization reduced mold cost to 22%.

Production Volume Amortizes Unit Cost

Mold life determines amortization: steel molds last for ≥1,000 pieces, while tooling board molds last 200-300 pieces. For small-batch customization (<50 pieces), mold cost can reach 40%; for large batches (>500 pieces), it can drop to 15%. Qinglong Group consolidates orders to merge production of similar components, improving mold utilization. In the Shenzhen Yirui Biotechnology Building project, intelligent production scheduling kept mold cost at 18% of the total.

Material Selection and Cost Balance

Although premium molds involve higher initial investment, they offer longer service life and higher yield rates. Qinglong Group prefers P20 mold steel (hardness HRC50-55) for molds of critical components; although its unit price is 30% higher than ordinary steel, it raises the product pass rate to 99.5%, reducing the overall cost by 10% instead. Scientific mold management is the key to optimizing the cost-effectiveness of custom UHPC.