Mold engineering drawings: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. 1. The Problem: Why Do Molds Often “Misbehave” After Transfer? The mold is finished, shipped, and arrives at…

Undercut ejection mold: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. 1. The Problem: The Long‑Standing Challenge of Undercut Ejection In parts with undercut features, conventional forced ejection often…

Injection mold cooling design: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. In the injection molding of fan blades, cooling design is a critical factor affecting product quality, dimensional…

Electronics enclosure mold design: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. In the consumer electronics industry, the product enclosure not only provides structural strength and heat dissipation but…

Silicone insert molding: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. At RiLong, we don’t just mold silicone. We overmold it onto metal inserts — often for customers who…

Cheap injection mold risks: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. In plastic injection molding, the initial tooling cost is always a hot topic. I often hear: “Can…

Reduce injection molding part cost: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. Drawing from years of project experience, We’ve summarized the following cost-reduction strategies from four dimensions: production…

Plastic surface finishing techniques: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. Injection molding brings your product to life—but surface finishing gives it soul. For plastic parts, the real…

Incorporating multi-material designs (e.g., rigid plastic + soft TPE) into products not only enhances grip comfort but also adds functionalities such as waterproofing and shock absorption. However, choosing between Two-Shot Molding and Overmolding is often the first major challenge engineers…

Injection mold gate design: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. Optimizing Gate Design to Avoid Sink Marks (Dents) in Injection Molding The core principle behind optimizing gate…

Plastic gear injection molding: This article explains the key design, material, process, quality, and production considerations that engineers and sourcing teams should evaluate. Related capability: Explore Rilong’s mold design and tooling capabilities, or send your drawing and production requirements for…