Product Overview
This is a high-precision 1*2 cavity injection mold, purpose-built for manufacturing medical-grade PA12 filter components. Constructed with premium 1.2083ESR mold steel heat-treated to HRC 48-52, this tooling meets the strictest requirements for cleanliness, durability, and precision in medical device production. Featuring a direct straight gate system and a hybrid surface finish of SPI-A3 high-gloss polish and partial VDI-18 texture, the mold delivers flawless, biocompatible surfaces ideal for fluid path and filtration applications. The design is optimized to produce complex geometries with fine details, ensuring consistent flow performance and dimensional accuracy across all parts.
Core Product Specifications
| Specification Item | Detailed Parameters |
| Mold Cavity | 1*2 Multi-Cavity, 2 identical parts per cycle for balanced, high-efficiency production |
| Applicable Material | PA12 (Polyamide 12), medical-grade, biocompatible, and suitable for fluid filter components |
| Gating System | Direct Straight Gate, clean feeding, minimal gate residue, and balanced melt flow for filter geometry |
| Mold Steel Grade | 1.2083ESR Mold Steel, ESR-refined for ultra-clean, defect-free medical-grade tooling |
| Steel Hardness | HRC 48-52, vacuum heat-treated for exceptional wear resistance and long-term dimensional stability |
| Surface Finish | Hybrid finish: SPI-A3 high-gloss polish + partial VDI-18 texture, meeting medical device appearance and hygiene standards |
| Molded Application | Custom medical filter components, fluid path filters, and biocompatible plastic filtration parts |
| Production Compatibility | Cleanroom-ready design, compatible with medical-grade injection molding machines |
Advanced Mold Design & Manufacturing
1. 1*2 Multi-Cavity Layout for Medical Production
The 1*2 cavity design ensures balanced melt flow and cooling conditions for both parts, eliminating the risk of dimensional variation common in multi-cavity molds. This configuration is optimized for cleanroom production, with minimal dead space and easy mold cleaning to meet medical hygiene standards.
2. 1.2083ESR Mold Steel Construction
Built with ESR-refined 1.2083 mold steel and heat-treated to HRC 48-52, this tooling offers exceptional corrosion resistance, wear resistance, and thermal stability. The ESR process removes impurities, ensuring the mold surface is ultra-clean and free of defects that could compromise medical part quality. This steel is ideal for medical applications, as it prevents material degradation and ensures consistent part quality even after millions of cycles.
3. Direct Straight Gate System for Filter Components
The direct straight gate is strategically placed to feed material into non-critical areas of the filter, ensuring no gate marks appear on sealing or fluid path surfaces. This design minimizes gate residue, reducing post-processing requirements and ensuring the parts meet the highest standards for cleanliness and biocompatibility. The balanced flow path prevents material degradation, preserving PA12’s medical-grade properties.
4. Hybrid SPI-A3 & VDI-18 Surface Finish
The mold features a precision hybrid surface finish tailored to medical filter requirements:
SPI-A3 High-Gloss Polish: Applied to critical fluid path and sealing surfaces, ensuring smooth, burr-free, and easy-to-clean interiors that prevent contamination and ensure unobstructed flow.
Partial VDI-18 Texture: Applied to exterior non-critical surfaces, providing a subtle matte finish that hides minor molding marks while maintaining a professional appearance.
5. Precision Geometry for Filtration Performance
The mold is engineered to produce the fine, complex geometries required for effective filtration, including precisely sized inlet/outlet ports, flow guides, and structural ribs. Tight tolerances are maintained across all features to ensure consistent fit, flow rate, and filtration performance in medical applications.
Material Adaptability & Core Advantages
PA12 is a medical-grade polyamide prized for its biocompatibility, chemical resistance, and flexibility, making it ideal for fluid path and filtration components. This custom mold is purpose-built to leverage these properties:
Biocompatibility: The clean mold steel, balanced gating, and polished surfaces ensure the PA12 material remains free of contamination and degradation during molding.
Filtration Performance: The precision mold geometry ensures consistent part dimensions, critical for maintaining accurate flow rates and filtration efficiency.
Consistent Quality: The 1.2083ESR steel construction and heat treatment maintain mold precision, ensuring uniform part quality across millions of shots.
Regulatory Compliance: The cleanroom-ready design, smooth surfaces, and minimal post-processing support compliance with medical device manufacturing standards.
Key Applications
This high-precision injection mold is designed for manufacturing a wide range of PA12 medical filter components, including:
IV and fluid administration set filters
Medical device fluid path filters and flow regulators
Surgical instrument filtration components
Custom biocompatible plastic filters for healthcare and pharmaceutical applications
Quality Assurance & After-Sales Support
Every medical-grade injection mold undergoes a rigorous multi-stage quality control process, including:
Steel material and ESR purity verification
Hardness testing and heat treatment validation
Dimensional accuracy checks of all critical mold features
Surface finish inspection of SPI-A3 polished and VDI-18 textured areas
Mold trial runs to validate part quality, gate performance, and dimensional consistency
We provide comprehensive after-sales support, including mold maintenance guidance, technical troubleshooting, and modification services, to ensure your production runs smoothly and meets all medical device manufacturing requirements.
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