【Introduction】
With the increasing strict requirements for precision and safety of plastic products in the medical industry, the medical injection mould sector has witnessed explosive growth. However, the market quality is uneven. For medical device enterprises, selecting a reliable mould supplier is not only critical for production efficiency but also directly impacts the quality and compliance of the final product. So, how can one accurately identify a high-quality supplier in a mixed market? It is recommended to evaluate based on three core dimensions: Factory Comprehensive Strength, Mould Life & Cost Control, and Supporting Assembly Capabilities.

【Section 1: Assessing Factory Comprehensive Strength (Hard Indicators)】
High-quality moulds stem from a strong manufacturing foundation. When selecting a supplier, do not look at the quotation alone; dig deeper into their "hard power" and "soft power."

• Hard Power: Includes the factory scale, advancement of processing equipment (e.g., high-precision CNC, EDM), and testing methods.
• Soft Power: Focus on the experience of the technical team and their emergency response and communication skills when facing unexpected situations. A mature mould factory should possess the ability to quickly resolve defects during the mould trial process, which is the cornerstone of ensuring on-time project delivery.

【Section 2: Defining Quality Requirements & Life Expectancy (Cost-Effectiveness)】
Mould life is a key indicator of medical injection mould quality, but one should avoid blindly pursuing "longevity."

• Matching Life with Production: High-quality medical moulds can produce up to one million units, whereas inferior moulds may require repair after only a few dozen shots. Enterprises should define mould life standards based on their own mass production needs.
• Balancing Material & Hardness: Mould life is directly related to steel hardness; medical moulds typically require a hardness of HRC40 or above.
  • Economical Solution: If the expected output is around 500,000 shots, materials like 3Cr13 are sufficient and cost-effective.
  • High-End Solution: For higher life requirements, superior steel grades are needed, but costs will rise significantly.
  • Recommendation: Communicate production volume expectations transparently with the mould factory to co-develop the most cost-effective steel plan, avoiding both "over-specification" and "under-specification."

【Section 3: Evaluating Medical-Grade Assembly & Supporting Capabilities (Hidden Threshold)】
Medical products often feature complex structures composed of multiple precision parts. This tests not only the injection process but also the factory's vertical integration capabilities.

• Full-Process Capability: Many standard injection factories only possess basic moulding capabilities and lack subsequent medical-grade assembly, cleaning, and packaging capabilities.
• Comprehensive Consideration: Choosing a factory with "Injection + Assembly" one-stop service significantly reduces supply chain management costs and outsourcing quality risks. During the audit, ensure the factory possesses a clean room and relevant qualifications for medical device production.

【Conclusion】
Selecting a medical injection mould factory is a systematic project. Only by balancing reliability of factory strength, economy of mould life, and integrity of assembly capabilities can one find a true long-term partner to escort the birth of high-quality medical devices.