High-Strength, Corrosion-Resistant Zinc Alloy (Zamak 3/5) Die Cast Parts for Surgical Tools, Monitor Housings & Medical Equipment
Zhejiang Zhengna Technology Co., Ltd. specializes in high-precision zinc alloy die casting components for critical medical applications. As an ISO 9001/IATF 16949 certified contract manufacturer, we leverage nearly 300 sets of advanced metal forming and mold processing equipment to produce medical-grade components that meet stringent regulatory standards including ISO 13485, FDA requirements, and RoHS compliance.

Figure: Custom zinc alloy die cast housing for medical monitoring equipment featuring smooth surface finish, precision mounting points, and structural reinforcement ribs.
Our medical zinc alloy die casting parts are manufactured in ISO Class 8 cleanroom environments when required, ensuring contaminant-free production for surgical instruments, diagnostic equipment housings, and implantable device components.
| Parameter | Specification | Standard/Testing Method |
|---|---|---|
| Primary Material | Zamak 3 (ZnAl4) / Zamak 5 (ZnAl4Cu1) | ASTM B86, ISO 301, EN 1774 |
| Tensile Strength | 283-328 MPa | ASTM E8/E8M |
| Surface Roughness | Ra 0.8-1.6 μm (as-cast), Ra 0.4-0.8 μm (machined) | ISO 1302 |
| Dimensional Tolerance | ±0.05mm to ±0.1mm (standard), ±0.02mm (precision) | ISO 8062-3 CT4-6 |
| Wall Thickness | 0.5mm minimum, 1.2mm typical | Custom design dependent |
| Corrosion Resistance | ≥96 hours neutral salt spray (NSS) test | ASTM B117 |
| Biocompatibility | ISO 10993-5 & -10 compliant (upon request) | Third-party certified |
| Surface Treatment | Passivation, Electropolishing, Powder Coating, Medical-grade Plating (Ni, Cr) | ASTM B633, ISO 4525 |
Our dedicated medical device manufacturing line includes:
Precision handles, housings, and mechanisms for:
Structural components and enclosures for:
Complex sub-assemblies and mechanisms:
Every medical zinc alloy die casting component undergoes rigorous verification:
Certifications & Compliance: ISO 9001:2015 • IATF 16949:2016 • ISO 13485 (Medical Devices) • RoHS 3 • REACH • FDA Registered Facility
Zhejiang Zhengna Technology Co., Ltd. provides complete manufacturing solutions from design-for-manufacturability (DFM) through sterilization packaging. Our engineering team specializes in converting plastic components to zinc alloy for enhanced durability and EMI shielding.
Annual Capacity: 50+ million medical components • Lead Time: 8-10 weeks for initial production • Minimum Order: Prototypes from 50pcs, production from 5,000pcs
Contact our medical device specialists today with your 3D files (STEP, IGES) and requirements for a comprehensive DFM analysis and quotation.