Author Archives: TONGDA LINK MOLD

Tolerance Guide: What ±0.005mm Really Means for Your Plastic Parts

Send us your 3D model, and we’ll return a quotation within 2 working days, marking each critical dimension as achievable / achievable with compensation / not recommended—with alternatives and the reasoning behind each call. No charge, no obligation. Ask for our Tolerance Capability Sheet—a one-page reference of achievable tolerance bands by material, feature size, and […]

2K Injection Molding Design Guide: Two-Color & Multi-Material Parts

Not sure whether rotary-axis or core-back suits your geometry? Tell us the part size and annual volume — we’ll recommend the route and adjust the design rules accordingly. Share a STEP or PDF file plus annual volume. We’ll come back within 48 hours with boundary tolerance, gate strategy, retention features, and any resin-compatibility concerns. Note: […]

How to Choose the Right Mold Steel for Automotive Interior Parts | Complete Guide

Our team has navigated these exact challenges for European and American clients and can help you avoid costly material missteps. At TONGDA LINK Mold, we specialize in precision injection molds for automotive interior applications — from material selection and DFM optimization to full mold manufacturing and trial production.

How to Evaluate a Plastic Mold Supplier in China: Complete Checklist | TONGDA LINK MOLD

Not ready to commit to a full production mold? We offer small-batch test molds starting from a single cavity — so you can verify our quality, communication, and delivery before scaling up. See our production floor, inspection lab, and molding machines in real time. We offer live video walkthroughs via Zoom or WhatsApp — or […]

Types of Gates for Injection Molding

Gate design is fundamentally an exercise in informed compromise. It requires balancing competing priorities: aesthetics versus function, cost versus cycle time, and production efficiency versus part quality. While a single “perfect” solution rarely exists, the objective is to define the most optimal configuration for the specific part, material, and production context. By systematically applying these principles, mold […]

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