Question 1

How do I choose a mold manufacturer in Dongguan?

Accepted Answer

Prioritize factories with ISO 9001:2015 certification, factory size above 5,000 m², minimum 10 years of operation, and verifiable client references. Always request a DFM (Design for Manufacturability) report and conduct an on-site or third-party audit before signing a contract.

Question 2

What is the typical lead time for injection molds from Dongguan?

Accepted Answer

Standard single-cavity molds: 15–30 days. Multi-cavity molds: 35–45 days. Complex molds with side actions or hot runner systems: 45–60 days. Lead time varies by complexity, cavity count, and steel type (P20 steel molds ship faster than H13 hardened steel molds).

Question 3

Is Dongguan reliable for high-precision plastic injection molding?

Accepted Answer

Yes. Dongguan is one of the world's top three mold manufacturing clusters. Factories like Yiot Technology achieve ±0.0005mm tolerance using CNC machining centers, EDM, and automated injection machines with robotic part handling. For medical or aerospace applications, always verify the manufacturer's CMM inspection reports.

Question 4

What certifications should I look for in a Dongguan mold maker?

Accepted Answer

At minimum: ISO 9001:2015 for quality management. For automotive projects: IATF 16949. For medical devices: ISO 13485. For environmental compliance: ISO 14001. Verify certifications on the certifying body's public database — do not rely on PDF certificates alone.

Question 5

What are the payment terms for Dongguan mold makers?

Accepted Answer

Common terms for first-time orders: 40–50% deposit with PO, 50–60% before shipment after mold trial approval. Established relationships may negotiate 30% deposit / 70% against shipping documents. Always use a purchase contract specifying steel grade, cavity material, tolerance requirements, and acceptance criteria.

Question 6

How do I verify a Dongguan mold maker before visiting?

Accepted Answer

Check the manufacturer's business license on China's National Enterprise Credit Information Publicity System (https://www.gsxt.gov.cn). Verify certifications on certifier databases. Search for the company on Alibaba.com (Verified Supplier badge) or GlobalSources.com (audited supplier reports). Check Google Maps satellite view to confirm factory size matches claimed figures.

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