What are the differences between blister-formed and injection-molded lunch boxes? What are the differences in production costs?

The core differences between blister-formed and injection-molded lunch boxes lie in their molding principles, product performance, and cost structure. Blister forming has lower costs and is suitable for thin-walled, lightweight designs; injection molding offers higher strength and precision, making it suitable for complex structures and demanding applications.

II. Differences in Production Costs

* **Mold Costs:** Blister forming: Simple and inexpensive molds, ranging from approximately 500 RMB to tens of thousands of RMB for plaster/copper/aluminum molds, with a short development cycle.

* **Injection Molding:** Complex and expensive molds, typically costing tens of thousands to hundreds of thousands of RMB, with a long lifespan but high initial investment.

* **Material Costs:** Blister forming: Can use thinner sheets, resulting in lower unit prices, but produces more scrap, requiring calculation based on thickness and layout.

* **Injection Molding:** High material utilization, more stable unit costs, suitable for large-scale, thinner production.

* **Equipment and Energy Consumption:** Blister forming: Low equipment investment, thermoforming energy consumption is approximately 8% of material costs, and production speed is fast.

Injection molding: Higher equipment and energy consumption, slightly higher labor and setup costs, and longer processing time per piece.

If you need to order blister food containers, trays, cups, lids, or similar items, please feel free to contact us.

Overall Cost:

Small batches/short cycle times: Vacuum forming has lower total costs, with significant advantages in mold and start-up costs.

Large batches/long-term: Injection molding achieves economies of scale, reducing mold and unit costs, resulting in higher cost-effectiveness.