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- Top-tier dimensional accuracy, with unidirectional tolerance consistently controlled at 0.002-0.005mm; fully interchangeable cavities.
- Strong corrosion and weather resistance; no rust or coating peeling observed after 72-hour salt spray testing; surface clean and flawless.
- High product acceptance, becoming a customer's designated standard part; annual repeat orders increase by 45%.
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- Top-tier dimensional accuracy, with unidirectional tolerance consistently controlled at 0.002-0.005mm; fully interchangeable cavities.
- Strong corrosion and weather resistance; no rust or coating peeling observed after 72-hour salt spray testing; surface clean and flawless.
- High product acceptance, becoming a customer's designated standard part; annual repeat orders increase by 45%.
Get a Quote
Customer Type
A leading global medical device manufacturer specializing in high-precision injection molding of disposable medical components.
Pain Points
Deformation Control
High-hardness medical mold steel (such as high-nitrogen stainless steel) frequently experiences minor deformation of the core after EDM or wire cutting due to uneven stress release and heat treatment, leading to dimensional deviations.
Pain Points 1
Surface Integrity
Traditional metal clamps easily scratch the machined surface to a mirror finish, causing demolding difficulties and posing a risk of drug residue contamination.
Pain Points 2
Corrosion Resistance
The customer requires parts with burr-free surfaces, biocompatibility compliance, and must pass a 72-hour salt spray test without rust or coating peeling, demanding stringent requirements for surface integrity.
Pain Points 3
Cavity Consistency
Controlling dimensional consistency in multi-cavity molds is extremely difficult; even minor deviations can cause injection flash, affecting the yield of medical products.
Pain Points 4
Low-Stress Precision Forming Process
High-hardness steel undergoes roughing and semi-finishing to release stress. Then, multi-stage finishing is performed using wire EDM and EDM sinking to control core deformation within ±0.002mm.
Non-Destructive Clamping Technology
All tooling fixtures contacting the high-gloss surface utilize Teflon/polyurethane soft grippers, ensuring zero scratches throughout the finishing process and a consistently high surface finish of Ra ≤ 0.2μm.
Medical-Grade Quality Control System
- Batch sampling of raw materials before feeding ensures compliance with medical-grade stainless steel standards.
- 100% inspection of contours and multi-cavity holes is conducted using a Zeiss CMM and 2D image measuring instrument to guarantee dimensional consistency.
- Salt spray testing and surface cleanliness verification are performed before shipment to ensure biocompatibility meets standards.
Results / Outcomes
Their consistent quality and reliable performance have earned them our trust as a preferred supplier, leading to long-term partnership and repeat orders.
The part's dimensional tolerances are consistently controlled within the range of 0.002–0.005 mm, and the cavity interchangeability is 100%.
0.002~0.005 mm
A 72-hour salt spray test showed zero rust, zero coating peeling, and no oil residue on the surface.
72H Test
The customer has designated this part as their preferred supplier's standard part, resulting in a 45% increase in annual repeat orders.
Increase by 45%
Capabilities Demonstrated
Medical-Grade Precision Machining
Deep understanding of the characteristics of medical mold steel, enabling systematic control of stress deformation and surface integrity.
Seamless Integration of Multiple Processes
Integrating heat treatment, wire EDM, mirror EDM, and precision grinding, the entire process is completed in-house.
High-Standard Testing and Verification
Possessing comprehensive verification capabilities from raw material composition analysis to full-size CMM scanning and environmental testing.
Medical Industry Compliance Awareness
Familiarity with biocompatibility, ISO 13485, and other medical manufacturing standards, enabling proactive mitigation of contamination risks during processing.
